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China Koyo Rna 4905 Needle Roller Bearings with Machined Rings Without an Inner Ring ball bearing

Engineering & procurement guidance

Solution Description

Welcome to select KORTON INDUSTRIAL Limited. 

NO 1. our adwantages:

1. 14 years bearing products manufacturing and 4 years exporting experiences.
two. OEM order and non-standard bearing order can be accepted.
three. Our main bearing products include Deep groove ball bearings, tapered roller bearings, cylindrical rollerbearings, spherical ball bearings, spherical roller bearings,  angular contact bearings, needle roller bearings, thrust ball bearings, spherical plain bearings, spherical bearings, automotive bearings pump bearings, and many nonstandard bearings are also in our product range.
4. Sample available
 
NO 2. Description: Needle Bearing
   

1 Drawn Cup Needle Bearing HK, BK
two Needle Bearing with Interior Ring NA, NKI
three Needle Bearing with no Internal Ring NK, RNA
four Full Complement Needle Bearing NAV
five Radial Needle Roller and Cage Assemblies K, KK
6 Thrust Needle Roller and Cage Assemblies AXK, AS

 
 NO 3. OEM all manufacturer bearing

1. deep groove ball bearing 6000,6200,6300,6400,61800,61900,Z,RS,ZZ,2RS
two. spherical roller bearing 22200,22300,23000,24000,23100,24100,CA,CC,E,W33
3. cylindrical roller bearing N,NU,NJ,NN,NUP,E,ECP,ECM,ECJ
four. taper roller bearing 35710,30300,32200,32300,31300,32000
5. Aligning ball bearing 1200,1300,2200,2300,
six. needle roller bearing NA,NAV,NK,NKI,RNA,NK,RNAV,ZKLF,ZKLN,ZARF,ZARN
seven. thrust ball bearing 51100,51200,51300,51400,E,M
eight. angular contact ball bearing7000,7100,7200,7300,AC,BECBM,C 
nine. spherical plain bearing GE,GEG,GEEW,U,UC,UG,GX,GAC,SA,SABP
ten.Wheel hub bearing /ceramic bearing/plastic bearing/lazy susan bearing
 
 NO 4. Needle Bearing Specification:
 

Seals Types Open
Vibration Amount Z1V1,Z2V2,Z3V3
Clearance C2,C0,C3,C4,C5
Tolerance Codes ABEC-1,ABEC-3,ABEC-5
Materral GCr15-China/AISI52100-United states of america/Din100Cr6-Germany
MOQ 1Set at minimum
Supply Time 5-fifteen days after deal
Payment Terms TT/PAPAL/WESTERN UNION
Bundle Tube deal+outer carton+palletsSingle box+outer carton+pallets
Tube packge+center box+outer carton+palletsAccording to your necessity

 
NO 5. Needle Bearing Models and Size: 
 

Bearing Designation Boundary Dimensions Basic Load Ratings Limiting Speed
HK BK Fw D C Cr Dynamic Cor Static Oil
mm mm mm Nm Nm
HK0306TN BK0306TN three 6.5 six 1320 950 60000
HK0408TN BK0408TN 4 8 eight 1540 1070 40000
HK0509 BK0509 five 9 nine 2200 1790 36000
HK0608 – 6 ten eight 1830 1550 32000
HK0609 BK0609 six 10 nine 2650 2400 3000
HK0708 – seven eleven eight 2800 2150 27000
HK0709 BK0709 seven eleven 9 2800 2150 27000
HK0808 BK0808 8 12 8 2550 2400 21000
HK571 BK571 eight twelve ten 3700 3450 21000
HK08×14×10 – 8 14 10 3800 3950 25000
HK08×14×12 – 8 14 twelve 4100 4320 25000
HK571 BK571 9 thirteen 10 4050 4250 25000
HK571 – nine 13 12 5000 6000 25000
HK1571 BK1571 ten fourteen ten 3900 4800 19000
HK1012 BK1012 ten 14 10 5000 6300 19000
HK1015 – 10 fourteen 15 6700 7800 19000
HK10×16×10 – 10 16 ten 6800 8800 18000
HK10×16×12 – ten sixteen 12 6800 8800 18000
HK10×16×15 – ten sixteen fifteen 6800 8800 19000
HK1210 BK1210 12 sixteen 10 4150 5800 19000
HK1212 BK1212 twelve 18 12 3800 5100 15000
HK12×17×12 – 12 seventeen 12 5100 7000 15000
HK12×17×15 – 12 seventeen fifteen 5100 7000 15000
HK12×17×18 – twelve 17 eighteen 5100 7000 15000
HK12×18×12 BK12×18×12 twelve 18 12 550 6300 17000
HK1312 BK1312 thirteen 19 twelve 6200 7100 17000
HK13.5×20×12 – thirteen.5 twenty twelve 6250 7590 16000
HK1412 – fourteen 20 twelve 6800 7500 14000
HK1416 – 14 twenty sixteen 7300 9000 14000
HK15×20×12 – fifteen 20 12 5800 6000 14000
HK15×20×16 – 15 20 sixteen 6000 6200 14000
HK15×20×20 – 15 twenty twenty 6100 6400 14000
HK1512 BK1512 fifteen 21 12 7000 8400 14000
HK1514 – fifteen 21 fourteen 8500 10400 13000
HK1515 – 15 21 fifteen 9100 11400 13000
HK1516 BK1516 15 21 sixteen 9800 11400 14000
HK1522 – fifteen 21 22 10400 16500 14000
HK15×22×12 – 15 22 12 14300 18400 13000
HK1612 BK1612 sixteen 22 12 7100 9200 14000
HK1614 – 16 22 14 8800 9900 12000
HK1616 BK1616 16 22 sixteen 15710 14300 14000
HK1622 – sixteen 22 22 11100 17400 14000
HK1712 – seventeen 23 twelve 6900 9300 13000
HK1714 – 17 23 fourteen 6800 15710 ten thousand
HK1716 – seventeen 23 sixteen 8500 12500 ten thousand
HK1718 – 17 23 eighteen 9500 10600 ten thousand
HK17×25×14 – seventeen 25 14 13100 147000 10000
HK17×25×18 – seventeen 25 eighteen 9500 10600 11000
HK1812 – eighteen 24 12 7100 9900 12000
HK1816 BK1816 eighteen 24 16 10600 15300 12000
HK2571 – 20 26 10 5900 7200 10000
HK2014 – 20 26 fourteen 9700 18100 9000
HK2016 BK2016 20 26 sixteen 11700 29100 10000
HK2018 – 20 26 18 7900 12800 9000
HK2571 – 20 26 20 13700 24000 10000
HK2030 – 20 26 thirty 21800 40000 15710
HK20×27×20 – 20 27 20 26300 47800 9900
HK2210 – 22 28 10 7200 9500 1571
HK2212 BK2212 22 28 12 8100 10400 1571
HK22×29×30 – 22 29 thirty 19400 33100 9000
HK2512 BK2512 twenty five 32 twelve ten thousand 14200 9000
HK2525 BK2525 twenty five 32 twenty five 22200 36700 9000
HK2816 BK2816 28 35 sixteen 15400 22500 8700
HK2820 BK2820 28 35 twenty 18900 32000 8700
HK3012 BK3012 30 37 twelve 15710 16200 8100
HK3571 BK3571 thirty 37 twenty 19700 33500 8100
HK3224 – 32 39 24 25500 5200 7300
HK3516 BK3516 35 42 sixteen 15700 27500 7100
HK4012 BK4012 forty 47 twelve 14000 24300 6300
HK4512 BK4512 45 52 twelve 12900 22500 5800
HK5571 BK5571 50 fifty eight 20 28000 60000 5300
HK6012 BK6012 60 sixty eight 12 12400 29000 4100

 

Shaft Dia Unit No. Dimensions (mm) Basic Load Rankings Restricting speed Bodyweight
mm d F D B r min S C KN C0 KN r/min g
ten NA4900 10 fourteen 22 13 .three .5 8.5 9.2 20000 23
twelve NA4901 twelve sixteen 24 thirteen .3 .five 9.4 10.9 17000 26
15 NA4902 15 20 28 thirteen .3 .5 10.six thirteen.six 14000 34
17 NA4903 seventeen 22 thirty thirteen .3 .five eleven 14.6 12000 37
twenty NA4904 20 twenty five 37 seventeen .three .8 21 25.five 10000 141
22 NA49/22 22 28 39 seventeen .three .8 22.8 29.five 9500 80
twenty five NA4905 25 thirty 42 seventeen .three .8 23.six 31.5 9500 88
28 NA49/28 28 32 forty five 17 .3 .eight 24.four 33.5 8500 ninety seven.7
30 NA4906 30 35 forty seven seventeen .3 .8 25 35.5 8000 one zero one
32 NA49/32 32 40 52 twenty .6 .eight 30.five forty seven.five 7000 158
35 NA4907 35 42 55 twenty .six .eight 31.5 fifty 7000 170
forty NA4908 40 forty eight 62 22 .6 one 43 67 6000 230
forty five NA4909 forty five fifty two sixty eight 22 .6 1 45 seventy three 8500 5500
fifty NA4910 50 58 72 22 .six 1 47 eighty 5000 274
fifty five NA4911 55 63 eighty 25 one one.5 58 100 4700 393
60 NA4912 60 68 eighty five twenty five 1 one.5 60 108 4300 426
65 NA4913 sixty five seventy two ninety 25 one one.5 61 112 4100 456
70 NA4914 70 eighty one hundred thirty 1 one.five eighty four 156 3800 728
seventy five NA4915 seventy five eighty five 105 30 1 1.five 86 162 3600 775
80 NA4916 eighty ninety one hundred ten thirty one one.5 89 174 3400 878
eighty five NA4917 85 a hundred one hundred twenty 35 1.1 one 111 237 2800 1250
90 NA4918 90 a hundred and five a hundred twenty five 35 1.1 one 114 250 3000 1312
ninety five NA4919 ninety five 110 a hundred thirty three 1.1 1 116 260 2800 1371
100 NA4920 a hundred 115 one hundred forty 40 1.1 two 128 270 2900 1900
110 NA4922 a hundred and ten one hundred twenty five one hundred fifty 40 one.1 two 132 290 2600 2070
one hundred twenty NA4924 one hundred twenty a hundred thirty five 165 45 1.1 two 181 390 2300 2860
a hundred thirty NA4926 one hundred thirty one hundred fifty one hundred eighty fifty 1.five one.five 203 470 2000 3900
one hundred forty NA4928 140 a hundred and sixty a hundred ninety fifty one.five one.five 209 500 1800 4150
 
 

NO. NO. SIZE
WITH Inner WITHOUT Internal mm
d Fw D C r min
NA5902 RNA5902 15 20 28 18 .3
NA5903 RNA5903 17 22 thirty eighteen .three
NA5904 RNA5904 20 25 37 23 .three
NA59/22 RNA59/22 22 28 39 23 .three
NA5905 RNA5905 twenty five thirty forty two 23 .3
NA59/28 RNA59/28 28 32 45 23 .3
NA5906 RNA5906 thirty 35 47 23 .three
NA59/32 RNA59/32 32 40 52 27 .6
NA5907 RNA5907 35 forty two fifty five 27 .6
NA5908 RNA5908 40 48 sixty two 30 .six
NA5909 RNA5909 45 fifty two sixty eight 30 .6
NA5910 RNA5910 fifty fifty eight 72 30 .six
NA5911 RNA5911 55 63 80 34 1
NA5912 RNA5912 sixty 68 85 34 1
NA5913 RNA5913 65 72 90 34 1
NA5914 RNA5914 70 eighty one hundred forty one
NA5915 RNA5915 seventy five eighty five one zero five 40 1
NA5916 RNA5916 eighty ninety 110 40 one
NA5917 RNA5917 eighty five a hundred a hundred and twenty 46 1.1
NA5918 RNA5918 90 one hundred and five 125 forty six 1.one
NA5919 RNA5919 95 a hundred and ten a hundred thirty 46 1.1
NA5920 RNA5920 100 a hundred and fifteen 140 fifty four 1.1
NA5922 RNA5922 a hundred and ten one hundred twenty five one hundred fifty fifty four one.1
NA5924 RNA5924 a hundred and twenty 135 a hundred sixty five 60 one.one
NA5926 RNA5926 one hundred thirty one hundred fifty 180 sixty seven one.5
NA5928 RNA5928 one hundred forty a hundred and sixty one hundred ninety sixty seven one.5

 

      Bearing                     NO. Shaft   Diameter  (mm) Dimension(mm) Mass   Approx  (g)
Current Code Fw D C
 K3X5X7TN  3  3  5  7  0.three
K3X5X9TN three three 5 nine .four
K3X6X7TN three three six seven .4
K4X7X7TN 4 4 7 seven .five
K4X7X10TN 4 four seven ten .7
K5X8X8TN 5 five 8 eight .7
K5X8X10TN five 5 eight 10 .9
K6X9X8TN six 6 nine eight .8
K6X9X10TN six 6 nine 10 1
K6X10X13TN six 6 ten thirteen 1.three
K7X10X8TN 7 seven ten eight .9
K7X10X10TN seven 7 10 ten 1.1
K8X11X8TN eight eight 11 eight one.one
K8X11X10TN eight 8 11 ten 1.7
K8X11X13TN 8 8 11 13 1.eight
K8X12X10TN 8 8 12 ten 1.three
K9X12X10TN 9 nine 12 10 one.5
K9X12X13TN 9 nine twelve 13 one.nine
K10X13X10TN ten ten thirteen ten 1.six
K10X13X13TN ten 10 thirteen 13 two.1
K10X13X16TN ten 10 thirteen sixteen two.2
K10X14X10TN ten 10 fourteen 10 2.nine
K10X14X13TN 10 10 14 13 four.three
K10X16X12TN 10 10 16 12 3.7
K12X15X9TN 12 12 15 9 two.seven
K12X15X10TN 12 12 15 10 one.nine
K12X15X13TN twelve twelve 15 13 2.4
K12X16X8TN twelve 12 sixteen 8 two.9
K12X16X10TN 12 twelve sixteen ten three.4
K12X16X13TN 12 twelve 16 13 3.eight
K12X17X13TN 12 twelve seventeen thirteen 4.4
K12X18X12TN twelve twelve eighteen twelve five
K12X15X20TN twelve twelve 15 twenty three.eight
K14X17X10 fourteen fourteen 17 ten four
K14X17X17 fourteen fourteen seventeen 17 six.8
K14X18X10 14 14 18 ten 4.8
K14X18X13 14 fourteen 18 thirteen 6.3
K14X18X14 14 fourteen 18 14 six.8
K14X18X15 fourteen fourteen eighteen 15 7.three
K14X18X17 14 fourteen 18 seventeen eight.one
K14X20X12 14 14 20 12 eight.six
K15X18X14 15 fifteen eighteen 14 5.3
K15X18X17 15 fifteen eighteen seventeen 6.4
K15X19X10 fifteen fifteen 19 10 five.one

 

Why Pick Us:
 
We are an industrial and trading company.We have our personal model: SFNB .If you fascinated in our merchandise,I can consider you to go to our manufacturing facility.
Our factory have innovative testing equipment,before the each product depart the factory,we will be screening.We can send out samples to you,you can check the high quality,and if you settle for the sample quality,we can assure: the follow-up orders’ good quality will be the identical as samples.
About ordinary regular kind of bearing ,We have rich inventory,not have MOQ,if your want a merchandise is Non-normal dimensions,need to have customise,we will in accordance the merchandise size to determine the MOQ.
Our organization can take OEM,you can send sample to me,we can producing products the same as sample.Meanwhile,we also can accept some nicely-known manufacturers of OEM,
If the volume of funds is much less,you can shell out it by Paypal.Of training course you can payment by TT or Western Union and so on.

US $2.6
/ Piece
| 		10 Pieces

(Min. Order)

###

Shipping Cost:

Estimated freight per unit.

To be negotiated

###

Rolling Body: Needle Roller
The Number of Rows: Single
Outer Dimension: Small (28-55mm)

###

Customization:
Available

|

Customized Request

###

1 Drawn Cup Needle Bearing HK, BK
2 Needle Bearing with Inner Ring NA, NKI
3 Needle Bearing without Inner Ring NK, RNA
4 Full Complement Needle Bearing NAV
5 Radial Needle Roller and Cage Assemblies K, KK
6 Thrust Needle Roller and Cage Assemblies AXK, AS

###

Seals Types OPEN
Vibration Level Z1V1,Z2V2,Z3V3
Clearance C2,C0,C3,C4,C5
Tolerance Codes ABEC-1,ABEC-3,ABEC-5
Materral GCr15-China/AISI52100-USA/Din100Cr6-Germany
MOQ 1Set at least
Delivery Time 5-15 days after contract
Payment Terms TT/PAPAL/WESTERN UNION
Package Tube package+outer carton+pallets;Single box+outer carton+pallets;
Tube packge+middle box+outer carton+pallets;According to your requirement

###

Bearing Designation Boundary Dimensions Basic Load Ratings Limiting Speed
HK BK Fw D C Cr Dynamic Cor Static Oil
mm mm mm Nm Nm
HK0306TN BK0306TN 3 6.5 6 1320 950 60000
HK0408TN BK0408TN 4 8 8 1540 1070 40000
HK0509 BK0509 5 9 9 2200 1790 36000
HK0608 – 6 10 8 1830 1550 32000
HK0609 BK0609 6 10 9 2650 2400 3000
HK0708 – 7 11 8 2800 2150 27000
HK0709 BK0709 7 11 9 2800 2150 27000
HK0808 BK0808 8 12 8 2550 2400 21000
HK0810 BK0810 8 12 10 3700 3450 21000
HK08×14×10 – 8 14 10 3800 3950 25000
HK08×14×12 – 8 14 12 4100 4320 25000
HK0910 BK0910 9 13 10 4050 4250 25000
HK0912 – 9 13 12 5000 6000 25000
HK1010 BK1010 10 14 10 3900 4800 19000
HK1012 BK1012 10 14 10 5000 6300 19000
HK1015 – 10 14 15 6700 7800 19000
HK10×16×10 – 10 16 10 6800 8800 18000
HK10×16×12 – 10 16 12 6800 8800 18000
HK10×16×15 – 10 16 15 6800 8800 19000
HK1210 BK1210 12 16 10 4150 5800 19000
HK1212 BK1212 12 18 12 3800 5100 15000
HK12×17×12 – 12 17 12 5100 7000 15000
HK12×17×15 – 12 17 15 5100 7000 15000
HK12×17×18 – 12 17 18 5100 7000 15000
HK12×18×12 BK12×18×12 12 18 12 550 6300 17000
HK1312 BK1312 13 19 12 6200 7100 17000
HK13.5×20×12 – 13.5 20 12 6250 7590 16000
HK1412 – 14 20 12 6800 7500 14000
HK1416 – 14 20 16 7300 9000 14000
HK15×20×12 – 15 20 12 5800 6000 14000
HK15×20×16 – 15 20 16 6000 6200 14000
HK15×20×20 – 15 20 20 6100 6400 14000
HK1512 BK1512 15 21 12 7000 8400 14000
HK1514 – 15 21 14 8500 10400 13000
HK1515 – 15 21 15 9100 11400 13000
HK1516 BK1516 15 21 16 9800 11400 14000
HK1522 – 15 21 22 10400 16500 14000
HK15×22×12 – 15 22 12 14300 18400 13000
HK1612 BK1612 16 22 12 7100 9200 14000
HK1614 – 16 22 14 8800 9900 12000
HK1616 BK1616 16 22 16 10100 14300 14000
HK1622 – 16 22 22 11100 17400 14000
HK1712 – 17 23 12 6900 9300 13000
HK1714 – 17 23 14 6800 10200 10000
HK1716 – 17 23 16 8500 12500 10000
HK1718 – 17 23 18 9500 10600 10000
HK17×25×14 – 17 25 14 13100 147000 10000
HK17×25×18 – 17 25 18 9500 10600 11000
HK1812 – 18 24 12 7100 9900 12000
HK1816 BK1816 18 24 16 10600 15300 12000
HK2010 – 20 26 10 5900 7200 10000
HK2014 – 20 26 14 9700 18100 9000
HK2016 BK2016 20 26 16 11700 29100 10000
HK2018 – 20 26 18 7900 12800 9000
HK2020 – 20 26 20 13700 24000 10000
HK2030 – 20 26 30 21800 40000 10100
HK20×27×20 – 20 27 20 26300 47800 9900
HK2210 – 22 28 10 7200 9500 10010
HK2212 BK2212 22 28 12 8100 10400 10010
HK22×29×30 – 22 29 30 19400 33100 9000
HK2512 BK2512 25 32 12 10000 14200 9000
HK2525 BK2525 25 32 25 22200 36700 9000
HK2816 BK2816 28 35 16 15400 22500 8700
HK2820 BK2820 28 35 20 18900 32000 8700
HK3012 BK3012 30 37 12 10100 16200 8100
HK3020 BK3020 30 37 20 19700 33500 8100
HK3224 – 32 39 24 25500 5200 7300
HK3516 BK3516 35 42 16 15700 27500 7100
HK4012 BK4012 40 47 12 14000 24300 6300
HK4512 BK4512 45 52 12 12900 22500 5800
HK5020 BK5020 50 58 20 28000 60000 5300
HK6012 BK6012 60 68 12 12400 29000 4100

###

Shaft Dia Unit No. Dimensions (mm) Basic Load Ratings Limiting speed Weight
mm d F D B r min S C KN C0 KN r/min g
10 NA4900 10 14 22 13 0.3 0.5 8.5 9.2 20000 23
12 NA4901 12 16 24 13 0.3 0.5 9.4 10.9 17000 26
15 NA4902 15 20 28 13 0.3 0.5 10.6 13.6 14000 34
17 NA4903 17 22 30 13 0.3 0.5 11 14.6 12000 37
20 NA4904 20 25 37 17 0.3 0.8 21 25.5 10000 141
22 NA49/22 22 28 39 17 0.3 0.8 22.8 29.5 9500 80
25 NA4905 25 30 42 17 0.3 0.8 23.6 31.5 9500 88
28 NA49/28 28 32 45 17 0.3 0.8 24.4 33.5 8500 97.7
30 NA4906 30 35 47 17 0.3 0.8 25 35.5 8000 101
32 NA49/32 32 40 52 20 0.6 0.8 30.5 47.5 7000 158
35 NA4907 35 42 55 20 0.6 0.8 31.5 50 7000 170
40 NA4908 40 48 62 22 0.6 1 43 67 6000 230
45 NA4909 45 52 68 22 0.6 1 45 73 8500 5500
50 NA4910 50 58 72 22 0.6 1 47 80 5000 274
55 NA4911 55 63 80 25 1 1.5 58 100 4700 393
60 NA4912 60 68 85 25 1 1.5 60 108 4300 426
65 NA4913 65 72 90 25 1 1.5 61 112 4100 456
70 NA4914 70 80 100 30 1 1.5 84 156 3800 728
75 NA4915 75 85 105 30 1 1.5 86 162 3600 775
80 NA4916 80 90 110 30 1 1.5 89 174 3400 878
85 NA4917 85 100 120 35 1.1 1 111 237 2800 1250
90 NA4918 90 105 125 35 1.1 1 114 250 3000 1312
95 NA4919 95 110 130 3 1.1 1 116 260 2800 1371
100 NA4920 100 115 140 40 1.1 2 128 270 2900 1900
110 NA4922 110 125 150 40 1.1 2 132 290 2600 2070
120 NA4924 120 135 165 45 1.1 2 181 390 2300 2860
130 NA4926 130 150 180 50 1.5 1.5 203 470 2000 3900
140 NA4928 140 160 190 50 1.5 1.5 209 500 1800 4150
 
 

###

NO. NO. SIZE
WITH INNER WITHOUT INNER mm
d Fw D C r min
NA5902 RNA5902 15 20 28 18 0.3
NA5903 RNA5903 17 22 30 18 0.3
NA5904 RNA5904 20 25 37 23 0.3
NA59/22 RNA59/22 22 28 39 23 0.3
NA5905 RNA5905 25 30 42 23 0.3
NA59/28 RNA59/28 28 32 45 23 0.3
NA5906 RNA5906 30 35 47 23 0.3
NA59/32 RNA59/32 32 40 52 27 0.6
NA5907 RNA5907 35 42 55 27 0.6
NA5908 RNA5908 40 48 62 30 0.6
NA5909 RNA5909 45 52 68 30 0.6
NA5910 RNA5910 50 58 72 30 0.6
NA5911 RNA5911 55 63 80 34 1
NA5912 RNA5912 60 68 85 34 1
NA5913 RNA5913 65 72 90 34 1
NA5914 RNA5914 70 80 100 40 1
NA5915 RNA5915 75 85 105 40 1
NA5916 RNA5916 80 90 110 40 1
NA5917 RNA5917 85 100 120 46 1.1
NA5918 RNA5918 90 105 125 46 1.1
NA5919 RNA5919 95 110 130 46 1.1
NA5920 RNA5920 100 115 140 54 1.1
NA5922 RNA5922 110 125 150 54 1.1
NA5924 RNA5924 120 135 165 60 1.1
NA5926 RNA5926 130 150 180 67 1.5
NA5928 RNA5928 140 160 190 67 1.5

###

      Bearing                     NO. Shaft   Diameter  (mm) Dimension(mm) Mass   Approx  (g)
Current Code Fw D C
 K3X5X7TN  3  3  5  7  0.3
K3X5X9TN 3 3 5 9 0.4
K3X6X7TN 3 3 6 7 0.4
K4X7X7TN 4 4 7 7 0.5
K4X7X10TN 4 4 7 10 0.7
K5X8X8TN 5 5 8 8 0.7
K5X8X10TN 5 5 8 10 0.9
K6X9X8TN 6 6 9 8 0.8
K6X9X10TN 6 6 9 10 1
K6X10X13TN 6 6 10 13 1.3
K7X10X8TN 7 7 10 8 0.9
K7X10X10TN 7 7 10 10 1.1
K8X11X8TN 8 8 11 8 1.1
K8X11X10TN 8 8 11 10 1.7
K8X11X13TN 8 8 11 13 1.8
K8X12X10TN 8 8 12 10 1.3
K9X12X10TN 9 9 12 10 1.5
K9X12X13TN 9 9 12 13 1.9
K10X13X10TN 10 10 13 10 1.6
K10X13X13TN 10 10 13 13 2.1
K10X13X16TN 10 10 13 16 2.2
K10X14X10TN 10 10 14 10 2.9
K10X14X13TN 10 10 14 13 4.3
K10X16X12TN 10 10 16 12 3.7
K12X15X9TN 12 12 15 9 2.7
K12X15X10TN 12 12 15 10 1.9
K12X15X13TN 12 12 15 13 2.4
K12X16X8TN 12 12 16 8 2.9
K12X16X10TN 12 12 16 10 3.4
K12X16X13TN 12 12 16 13 3.8
K12X17X13TN 12 12 17 13 4.4
K12X18X12TN 12 12 18 12 5
K12X15X20TN 12 12 15 20 3.8
K14X17X10 14 14 17 10 4
K14X17X17 14 14 17 17 6.8
K14X18X10 14 14 18 10 4.8
K14X18X13 14 14 18 13 6.3
K14X18X14 14 14 18 14 6.8
K14X18X15 14 14 18 15 7.3
K14X18X17 14 14 18 17 8.1
K14X20X12 14 14 20 12 8.6
K15X18X14 15 15 18 14 5.3
K15X18X17 15 15 18 17 6.4
K15X19X10 15 15 19 10 5.1
US $2.6
/ Piece
| 		10 Pieces

(Min. Order)

###

Shipping Cost:

Estimated freight per unit.

To be negotiated

###

Rolling Body: Needle Roller
The Number of Rows: Single
Outer Dimension: Small (28-55mm)

###

Customization:
Available

|

Customized Request

###

1 Drawn Cup Needle Bearing HK, BK
2 Needle Bearing with Inner Ring NA, NKI
3 Needle Bearing without Inner Ring NK, RNA
4 Full Complement Needle Bearing NAV
5 Radial Needle Roller and Cage Assemblies K, KK
6 Thrust Needle Roller and Cage Assemblies AXK, AS

###

Seals Types OPEN
Vibration Level Z1V1,Z2V2,Z3V3
Clearance C2,C0,C3,C4,C5
Tolerance Codes ABEC-1,ABEC-3,ABEC-5
Materral GCr15-China/AISI52100-USA/Din100Cr6-Germany
MOQ 1Set at least
Delivery Time 5-15 days after contract
Payment Terms TT/PAPAL/WESTERN UNION
Package Tube package+outer carton+pallets;Single box+outer carton+pallets;
Tube packge+middle box+outer carton+pallets;According to your requirement

###

Bearing Designation Boundary Dimensions Basic Load Ratings Limiting Speed
HK BK Fw D C Cr Dynamic Cor Static Oil
mm mm mm Nm Nm
HK0306TN BK0306TN 3 6.5 6 1320 950 60000
HK0408TN BK0408TN 4 8 8 1540 1070 40000
HK0509 BK0509 5 9 9 2200 1790 36000
HK0608 – 6 10 8 1830 1550 32000
HK0609 BK0609 6 10 9 2650 2400 3000
HK0708 – 7 11 8 2800 2150 27000
HK0709 BK0709 7 11 9 2800 2150 27000
HK0808 BK0808 8 12 8 2550 2400 21000
HK0810 BK0810 8 12 10 3700 3450 21000
HK08×14×10 – 8 14 10 3800 3950 25000
HK08×14×12 – 8 14 12 4100 4320 25000
HK0910 BK0910 9 13 10 4050 4250 25000
HK0912 – 9 13 12 5000 6000 25000
HK1010 BK1010 10 14 10 3900 4800 19000
HK1012 BK1012 10 14 10 5000 6300 19000
HK1015 – 10 14 15 6700 7800 19000
HK10×16×10 – 10 16 10 6800 8800 18000
HK10×16×12 – 10 16 12 6800 8800 18000
HK10×16×15 – 10 16 15 6800 8800 19000
HK1210 BK1210 12 16 10 4150 5800 19000
HK1212 BK1212 12 18 12 3800 5100 15000
HK12×17×12 – 12 17 12 5100 7000 15000
HK12×17×15 – 12 17 15 5100 7000 15000
HK12×17×18 – 12 17 18 5100 7000 15000
HK12×18×12 BK12×18×12 12 18 12 550 6300 17000
HK1312 BK1312 13 19 12 6200 7100 17000
HK13.5×20×12 – 13.5 20 12 6250 7590 16000
HK1412 – 14 20 12 6800 7500 14000
HK1416 – 14 20 16 7300 9000 14000
HK15×20×12 – 15 20 12 5800 6000 14000
HK15×20×16 – 15 20 16 6000 6200 14000
HK15×20×20 – 15 20 20 6100 6400 14000
HK1512 BK1512 15 21 12 7000 8400 14000
HK1514 – 15 21 14 8500 10400 13000
HK1515 – 15 21 15 9100 11400 13000
HK1516 BK1516 15 21 16 9800 11400 14000
HK1522 – 15 21 22 10400 16500 14000
HK15×22×12 – 15 22 12 14300 18400 13000
HK1612 BK1612 16 22 12 7100 9200 14000
HK1614 – 16 22 14 8800 9900 12000
HK1616 BK1616 16 22 16 10100 14300 14000
HK1622 – 16 22 22 11100 17400 14000
HK1712 – 17 23 12 6900 9300 13000
HK1714 – 17 23 14 6800 10200 10000
HK1716 – 17 23 16 8500 12500 10000
HK1718 – 17 23 18 9500 10600 10000
HK17×25×14 – 17 25 14 13100 147000 10000
HK17×25×18 – 17 25 18 9500 10600 11000
HK1812 – 18 24 12 7100 9900 12000
HK1816 BK1816 18 24 16 10600 15300 12000
HK2010 – 20 26 10 5900 7200 10000
HK2014 – 20 26 14 9700 18100 9000
HK2016 BK2016 20 26 16 11700 29100 10000
HK2018 – 20 26 18 7900 12800 9000
HK2020 – 20 26 20 13700 24000 10000
HK2030 – 20 26 30 21800 40000 10100
HK20×27×20 – 20 27 20 26300 47800 9900
HK2210 – 22 28 10 7200 9500 10010
HK2212 BK2212 22 28 12 8100 10400 10010
HK22×29×30 – 22 29 30 19400 33100 9000
HK2512 BK2512 25 32 12 10000 14200 9000
HK2525 BK2525 25 32 25 22200 36700 9000
HK2816 BK2816 28 35 16 15400 22500 8700
HK2820 BK2820 28 35 20 18900 32000 8700
HK3012 BK3012 30 37 12 10100 16200 8100
HK3020 BK3020 30 37 20 19700 33500 8100
HK3224 – 32 39 24 25500 5200 7300
HK3516 BK3516 35 42 16 15700 27500 7100
HK4012 BK4012 40 47 12 14000 24300 6300
HK4512 BK4512 45 52 12 12900 22500 5800
HK5020 BK5020 50 58 20 28000 60000 5300
HK6012 BK6012 60 68 12 12400 29000 4100

###

Shaft Dia Unit No. Dimensions (mm) Basic Load Ratings Limiting speed Weight
mm d F D B r min S C KN C0 KN r/min g
10 NA4900 10 14 22 13 0.3 0.5 8.5 9.2 20000 23
12 NA4901 12 16 24 13 0.3 0.5 9.4 10.9 17000 26
15 NA4902 15 20 28 13 0.3 0.5 10.6 13.6 14000 34
17 NA4903 17 22 30 13 0.3 0.5 11 14.6 12000 37
20 NA4904 20 25 37 17 0.3 0.8 21 25.5 10000 141
22 NA49/22 22 28 39 17 0.3 0.8 22.8 29.5 9500 80
25 NA4905 25 30 42 17 0.3 0.8 23.6 31.5 9500 88
28 NA49/28 28 32 45 17 0.3 0.8 24.4 33.5 8500 97.7
30 NA4906 30 35 47 17 0.3 0.8 25 35.5 8000 101
32 NA49/32 32 40 52 20 0.6 0.8 30.5 47.5 7000 158
35 NA4907 35 42 55 20 0.6 0.8 31.5 50 7000 170
40 NA4908 40 48 62 22 0.6 1 43 67 6000 230
45 NA4909 45 52 68 22 0.6 1 45 73 8500 5500
50 NA4910 50 58 72 22 0.6 1 47 80 5000 274
55 NA4911 55 63 80 25 1 1.5 58 100 4700 393
60 NA4912 60 68 85 25 1 1.5 60 108 4300 426
65 NA4913 65 72 90 25 1 1.5 61 112 4100 456
70 NA4914 70 80 100 30 1 1.5 84 156 3800 728
75 NA4915 75 85 105 30 1 1.5 86 162 3600 775
80 NA4916 80 90 110 30 1 1.5 89 174 3400 878
85 NA4917 85 100 120 35 1.1 1 111 237 2800 1250
90 NA4918 90 105 125 35 1.1 1 114 250 3000 1312
95 NA4919 95 110 130 3 1.1 1 116 260 2800 1371
100 NA4920 100 115 140 40 1.1 2 128 270 2900 1900
110 NA4922 110 125 150 40 1.1 2 132 290 2600 2070
120 NA4924 120 135 165 45 1.1 2 181 390 2300 2860
130 NA4926 130 150 180 50 1.5 1.5 203 470 2000 3900
140 NA4928 140 160 190 50 1.5 1.5 209 500 1800 4150
 
 

###

NO. NO. SIZE
WITH INNER WITHOUT INNER mm
d Fw D C r min
NA5902 RNA5902 15 20 28 18 0.3
NA5903 RNA5903 17 22 30 18 0.3
NA5904 RNA5904 20 25 37 23 0.3
NA59/22 RNA59/22 22 28 39 23 0.3
NA5905 RNA5905 25 30 42 23 0.3
NA59/28 RNA59/28 28 32 45 23 0.3
NA5906 RNA5906 30 35 47 23 0.3
NA59/32 RNA59/32 32 40 52 27 0.6
NA5907 RNA5907 35 42 55 27 0.6
NA5908 RNA5908 40 48 62 30 0.6
NA5909 RNA5909 45 52 68 30 0.6
NA5910 RNA5910 50 58 72 30 0.6
NA5911 RNA5911 55 63 80 34 1
NA5912 RNA5912 60 68 85 34 1
NA5913 RNA5913 65 72 90 34 1
NA5914 RNA5914 70 80 100 40 1
NA5915 RNA5915 75 85 105 40 1
NA5916 RNA5916 80 90 110 40 1
NA5917 RNA5917 85 100 120 46 1.1
NA5918 RNA5918 90 105 125 46 1.1
NA5919 RNA5919 95 110 130 46 1.1
NA5920 RNA5920 100 115 140 54 1.1
NA5922 RNA5922 110 125 150 54 1.1
NA5924 RNA5924 120 135 165 60 1.1
NA5926 RNA5926 130 150 180 67 1.5
NA5928 RNA5928 140 160 190 67 1.5

###

      Bearing                     NO. Shaft   Diameter  (mm) Dimension(mm) Mass   Approx  (g)
Current Code Fw D C
 K3X5X7TN  3  3  5  7  0.3
K3X5X9TN 3 3 5 9 0.4
K3X6X7TN 3 3 6 7 0.4
K4X7X7TN 4 4 7 7 0.5
K4X7X10TN 4 4 7 10 0.7
K5X8X8TN 5 5 8 8 0.7
K5X8X10TN 5 5 8 10 0.9
K6X9X8TN 6 6 9 8 0.8
K6X9X10TN 6 6 9 10 1
K6X10X13TN 6 6 10 13 1.3
K7X10X8TN 7 7 10 8 0.9
K7X10X10TN 7 7 10 10 1.1
K8X11X8TN 8 8 11 8 1.1
K8X11X10TN 8 8 11 10 1.7
K8X11X13TN 8 8 11 13 1.8
K8X12X10TN 8 8 12 10 1.3
K9X12X10TN 9 9 12 10 1.5
K9X12X13TN 9 9 12 13 1.9
K10X13X10TN 10 10 13 10 1.6
K10X13X13TN 10 10 13 13 2.1
K10X13X16TN 10 10 13 16 2.2
K10X14X10TN 10 10 14 10 2.9
K10X14X13TN 10 10 14 13 4.3
K10X16X12TN 10 10 16 12 3.7
K12X15X9TN 12 12 15 9 2.7
K12X15X10TN 12 12 15 10 1.9
K12X15X13TN 12 12 15 13 2.4
K12X16X8TN 12 12 16 8 2.9
K12X16X10TN 12 12 16 10 3.4
K12X16X13TN 12 12 16 13 3.8
K12X17X13TN 12 12 17 13 4.4
K12X18X12TN 12 12 18 12 5
K12X15X20TN 12 12 15 20 3.8
K14X17X10 14 14 17 10 4
K14X17X17 14 14 17 17 6.8
K14X18X10 14 14 18 10 4.8
K14X18X13 14 14 18 13 6.3
K14X18X14 14 14 18 14 6.8
K14X18X15 14 14 18 15 7.3
K14X18X17 14 14 18 17 8.1
K14X20X12 14 14 20 12 8.6
K15X18X14 15 15 18 14 5.3
K15X18X17 15 15 18 17 6.4
K15X19X10 15 15 19 10 5.1

Understanding the Different Types of Bearings

When you are looking for a bearing, you have many options to choose from. This article will explain the various types, functions, and working principles of different types of bearings. Once you understand the basic components, you can make an informed decision about which one to buy. Here’s an overview of some of the most common types. Learn more about each type below! Read on to learn about the differences between these different types of bearings! Posted in Articles

Functions

bearing
Bearings serve as an integral part of a mechanical device. These devices help transfer torque from one part of a structure to another. These mechanisms increase the efficiency of a shaft by increasing its life. However, the functions of bearings depend on the application of the structure. Among other functions, bearings provide support to shafts. Anti-friction bearings come in two types: ball and roller bearings. These components have line and point contact, which is the most common type. Archimedes’s principle states that the force is equal to the weight of the fluid that is being displaced. Bearings can transfer lateral loads to a substructure.
A bearing has two primary functions. The first is to prevent direct metal-to-metal contact. A bearing prevents friction, heat generation, and wear and tear of components. A bearing also reduces energy consumption. Its other purpose is to guide and support a rotating body. In addition to these functions, bearings can also reduce wear and tear on a machine. As a result, they are among the most widely used machines in the world.
Seals are a major component of a bearing. They prevent foreign materials from entering and lubricating the moving parts. The design of seal lips determines their effectiveness. Fuel economy regulations and CO2 emissions regulations are pushing the demand for low-friction bearings. However, high-performance seals do not always provide high-performance. As a result, current estimations of the friction in bearings depend on trial and error methods.
Another important function of bearings is that they transfer the load of a rotating component to its housing. This load can be axial or radial. Bearings also limit movement to predefined directions. Some types of rolling element bearings have balls or cylinders inside. These bearings are less frictional than sliding ones, thus they allow parts to move freely during rotation. These parts can then be used for various applications. So, bearings are an integral part of machines.

Types

The most common type of bearing is a plain bearing. It uses surfaces in rubbing contact to transmit movement from one part to another. These bearings may be discrete or may consist of a hole in a metal sleeve or a planar surface bearing another part. Some plain bearings are flanged, while others are made of a sleeve with a flange at one end. These bearings often give acceptable accuracy and life, but they are expensive and cannot be used in large scale applications.
Radial bearings are used when there is a need for high-speed or corrosive parts. This type of bearing also serves as a support in an intermediate situation. Its two components are called the base and the cover. The base and cover are connected and are arranged parallel to the main axis. This type of bearing is used in steady-state and axial motion applications. The radial bearings are also used when the shafts are long.
Angular contact bearings are another type of bearing. These are easy to install and require minimal maintenance. Their races are displaced along the axis. They are also better at handling axial loads and transferring them to the housing. These types of bearings are commonly used in pumps, automobiles, and high-speed applications. If you are looking for an affordable, reliable bearing, look no further than the angular contact bearing.
Another type of bearing is a self-lubricating bushing. These are lightweight and wear-resistant. Unlike the other types of bearing, they do not require any lubrication or maintenance. In fact, some are completely maintenance-free. But if you’re worried about maintenance, this type of bearing may be a good choice. There are many benefits of using self-lubricating bushings. It is also a good option for applications where your machine is exposed to extreme temperatures.

Working principle

bearing
A bearing has two primary functions: support and load transfer. In engineering applications, the bearing tends to push the load in the direction of the shaft. A radial load pushes the bearing downward and a thrust load pushes it sideways. Both types of load transfer are important in a variety of applications. The working principle of each type is described below. Listed below are the main uses for each type of bearing.
A plain bearing uses a PTFE liner on the interface of two moving parts. The PTFE liner acts as a lubricant and may be filtered to alter its friction. The journal bearing uses the motion of the journal to force fluid into the gap between two moving parts. This results in a small amount of play in the bearing. This play is acceptable for most applications. A ball bearing may have a maximum play of 2 mm for a ten-millimeter shaft.
The primary function of a bearing is to assist in rotation and to reduce mechanical friction between the two objects. A bearing may be installed as a separate device or as an integral part of a machine. For more complex applications, bearings are very precise components requiring the highest standards of technology. For this reason, it is important to understand the working principle of bearings. The next time you need to lift or slide a heavy object, consider a bearing.
Ball bearings are a common type of ball bearing and can be found in industrial machinery and automobiles. Their unique structure helps them support less weight. This is because they are comprised of two rings – an inner race and an outer race. The balls themselves have a small area of contact and transfer axial loads in one direction. A cage surrounds the balls and prevents them from colliding. This makes ball bearings a popular choice for many applications.

Sealing system

A bearing’s seals are vital for the operation of rolling and rotating components. These systems enable rotation and linear movement while limiting friction and dispersing stress. Without the proper seals, these components could face catastrophic failure. In addition to protecting the bearing from external forces, seals help retain lubricant inside the system and prevent harmful particles from entering the gap. A seal’s lubrication helps prevent the onset of mechanical damage and prolongs the life of the bearing.
A bearing seal is made up of two parts: the inner sealing element and the outer sealing element. A passageway runs through the bearing assembly to the outer seal element. A hydraulic press or pneumatic jack is recommended for installing the seal. These tools are effective in reducing deformation and improving seal installation quality. When fitting the seal, ensure that the tool does not hit the seal directly. A proper adopter will distribute the load uniformly across the seal.
The seal’s efficiency depends on its gap. A four-inch shaft seal can flow 0.5 standard cubic feet per minute. A seal’s efficiency is highly dependent on the gap size. The gap size is a cube of the flow through the system. A smaller gap size allows high flow and pressure but less leakage. If both surfaces of the seal have similar pressures and flow rates, the seal is efficient. However, a small gap reduces the pressures and reduces wear.
Mechanical seals have numerous advantages, including their ability to protect against contaminants and splashing liquids. Labyrinth seals are the first line of defense against leaks. They operate without friction. Their high level of sealing efficiency helps ensure that the bearing remains operational for long. This type of seal is made from metal plates and is designed for a wide temperature range and misalignment. Its advantages include being easy to install and offering 100% sealing efficiency.

Maintenance

bearing
Bearing maintenance is critical to ensuring that your bearings keep operating at their peak performance. Proper maintenance will improve bearing life, reduce downtime and increase productivity while reducing costs. Here is an 8-point checklist to optimize your bearings and make them last longer. To optimize their performance, you should follow these steps regularly. In case a bearing does not last long, you should replace it as soon as possible. Listed below are some tips to ensure proper maintenance.
The first step is to determine how often your bearings require lubrication. Some manufacturers recommend that you lubricate them weekly, but this can do more harm than good. Instead, use ultrasound to measure the level of friction and trend its levels. This way, you will know exactly when to grease your bearings. It’s also important to check how often they should be inspected and calibrated. A professional can provide guidance on proper maintenance.
Next, inspect your bearings for cracks and scratches. You should never install a bearing that has been dropped or scratched. Even a small crack will affect the performance of the bearing and could lead to its premature failure. A proper alignment is essential for the bearing to function properly. Make sure you have the correct tools to perform this task. These tools can help you reduce manual work and promote safe bearing maintenance. You should also ensure that the shaft and housing are clean and undamaged.
Proper maintenance can prolong bearing service life. Proper lubrication, mounting, inspection, basic condition monitoring, and dismounting can extend their life. Proper maintenance extends their lifespan and improves plant productivity. While bearings are essential for machinery, you should make sure you follow the proper safety procedures every time you work with them. These tips will also help prevent accidents and maintain your machine’s efficiency. Once you’ve followed these guidelines, you can safely inspect your bearings and ensure that they’re operating at their optimum capacity.

China Koyo Rna 4905 Needle Roller Bearings with Machined Rings Without an Inner Ring ball bearingChina Koyo Rna 4905 Needle Roller Bearings with Machined Rings Without an Inner Ring ball bearing
editor by czh 2022-12-27