Product Description
Needle roller bearings contain many slender rollers with a length 3 to 10 times their diameter. Therefore, the ratio of the bearing outside diameter to the inscribed circle diameter is small, and they have a rather high radial load capacity. There are numerous types available, and many have no inner rings. The drawn-cup type has a pressed steel outer ring and the solid type has a machined outer ring. There are also cage-and-roller assemblies without rings. Most bearings have pressed steel cages, but some are without cages.
| Model Number | HK series, BK series, HK…RS series, HK…2RS series, BK…RS series, F series, FH series, MF series, |
| HF series, CZPT series, K series, K…ZW series, KZK series, series, NK series, NKS series, RNA49 series, | |
| RNA69 series, NKI series, NKIS series, NA49 series, NA69 series, NA48 series, NAO series, RNAO series, | |
| RNA49…RS series, RNA49… 2RS series, RNAV series, NAV series, RPNA series, PNA series, IR series, | |
| LR series, AXK series, AXW series, RSTO series, STO series, RNA2200 series, RNA2200…2RS series, | |
| NA2200 series, NATR series, NATV series, NUTR series, PWTR series, NNTR series, KR series, KRE series, | |
| KRV series, NUKR series, NUKRE series, PWKR series, PWKRE series. | |
| Type | needle roller bearing. |
| Number of Row | single row, double row, multi row. |
| Material | supreme chrome steel 100Cr6. |
| Cage Material | steel, brass, nylon. |
| Hardness | HRC 60-64. |
| Precision Rating | P0, P6, P5. |
| Radial Clearance | C0, C2, C3, C4, C5. |
| Sealing Type | open, 2RS. |
| Grease | as per your requirement, such as Chevron SRI-2 ,Multemp PS2, Shell Alvania R2, Changcheng 2 and so on. |
| Certification | ISO 9001:2008. |
| Mark | TIK or your mark. |
| Package | single box package, industrial rolled package or as per buyer’s requirement. |
| Place of Origin | China (Mainland). |
| Features | (1) high precision; |
| (2) high speed; | |
| (3) high load carrying capacity; | |
| (4) low noise; | |
| (5) long life span. | |
| Application | transport machinery, CNC machine, sewing machinery, handcart, physical exercise apparatus, motorcycle, |
| automobile, electric tool, leisure toys, textile machinery, printing machinery etc. | |
| Payment Term | 30% deposit, 70% is paid by TT or L/C or Western Union. |
| Shipment time | ready stock, immediate shipment. |
| Shipping Port | ZheJiang , ZheJiang or HangZhou. |
| Samples | free samples are available. |
| Items | d | D | B |
| mm | mm | mm | |
| NUTR15 | 15 | 35 | 19 |
| NUTR1542 | 15 | 42 | 19 |
| NUTR17 | 17 | 40 | 21 |
| NUTR1747 | 17 | 47 | 21 |
| NUTR20 | 20 | 47 | 25 |
| NUTR2052 | 20 | 52 | 25 |
| NUTR25 | 25 | 52 | 25 |
| NUTR2562 | 25 | 62 | 25 |
| NUTR30 | 30 | 62 | 29 |
| NUTR3072 | 30 | 72 | 29 |
| NUTR35 | 35 | 72 | 29 |
| NUTR3580 | 35 | 80 | 29 |
| NUTR40 | 40 | 80 | 32 |
| NUTR4090 | 40 | 90 | 32 |
| NUTR45 | 45 | 85 | 32 |
| NUTR45100 | 45 | 100 | 32 |
| NUTR50 | 50 | 90 | 32 |
| NUTR50110 | 50 | 110 | 32 |
Packaging & Shipping
FAQ
FAQ
Q1: Are you a manufacturer or a trading company?
A: We have been a professional manufacturer of bearings since 1995 with ISO9001:2015 certificate.
Q2: How is the quality level of your bearings?
A: Our bearings are made of supreme GCr15 bearing steel and are produced with the first class workmanship. The tolerance grade could be P0, P6, P5, P4. The vibration level could be Z1V1, Z2V2, Z3V3.
Q3: Can I get samples to see the quality?
A: Yes, samples are free, but the courier charge shall be borne by the buyer.
Q4: Could you offer OEM service and print my logo/mark on the products?
A: Yes, we could. Please send us your mark registration files, we shall print your logo/mark on the bearings and package.
Q5: How is the lead time?
A: For regular items that are in stock, we could make shipment immediately right after your payment. If the goods are not in stock, our production time is from 15 to 45 days according to the quantity.
Q6: What if I receive defective product for my order?
A: All our bearings are 100% inspected strictly before packing. If you receive any defective product, please provide us photos or videos to show the problem. After confirmation, we shall send you the new product as replacement free of charge.
Q7: What is your term of payment?
A: Term of payment is negotiable. Usually it is 30% deposit in advance, and the balance 70% is paid when the goods are ready for shipment.
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| Rolling Body: | Roller Bearings |
|---|---|
| The Number of Rows: | Single |
| Outer Dimension: | Small and Medium-Sized (60-115mm) |
| Material: | Bearing Steel |
| Spherical: | Non-Aligning Bearings |
| Load Direction: | Radial Bearing |
| Customization: |
Available
| Customized Request |
|---|
Can you provide examples of industries and applications where track bearings are frequently used?
Track bearings find extensive use in various industries and applications where smooth and controlled motion along tracks or guide rails is required. Let’s explore some examples of industries and applications where track bearings are frequently used:
- Material Handling and Conveying: Track bearings are widely employed in material handling and conveying systems, such as conveyor belts, roller conveyors, and overhead cranes. They facilitate the smooth movement of goods, packages, and components along the tracks, ensuring efficient and reliable transportation within warehouses, distribution centers, manufacturing facilities, and airports.
- Automotive and Transportation: Track bearings are utilized in various automotive applications, including suspension systems, steering systems, and sliding doors. They enable smooth and precise movement of components, contributing to vehicle performance, comfort, and safety. Additionally, track bearings are used in railway applications, such as railcar doors, sliding mechanisms, and track guidance systems.
- Aerospace and Defense: Track bearings play a crucial role in aerospace and defense applications, including aircraft landing gears, flap systems, and missile launchers. They provide the necessary support, guidance, and load-carrying capacity for critical components, ensuring smooth and controlled motion in demanding operating conditions.
- Industrial Machinery: Track bearings are commonly found in various industrial machinery and equipment. They are used in machine tools, robotics, printing presses, industrial ovens, and packaging machines, among others. In these applications, track bearings contribute to precise motion control, accurate positioning, and reliable performance of moving components.
- Construction and Mining: Track bearings are extensively employed in construction and mining equipment, such as excavators, bulldozers, cranes, and drilling machines. They provide support and guidance for the movable parts, allowing efficient and controlled movement in rugged and demanding environments.
- Medical and Healthcare: Track bearings are utilized in various medical and healthcare applications. They are used in hospital beds, medical imaging equipment, laboratory automation systems, and patient handling devices. Track bearings enable smooth and quiet operation, precise positioning, and patient comfort in these critical healthcare settings.
- Renewable Energy: Track bearings are employed in renewable energy systems, including solar tracking systems and wind turbine pitch and yaw mechanisms. They enable the precise tracking of solar panels and the controlled adjustment of wind turbine blades, maximizing energy capture and optimizing system performance.
These examples represent just a fraction of the many industries and applications where track bearings are frequently used. The versatility, reliability, and precise motion control provided by track bearings make them a fundamental component in numerous mechanical systems across various sectors.
Are there potential challenges or limitations in using track bearings in specific industries?
While track bearings are widely used in various industries for their ability to support linear motion and handle heavy loads, there can be potential challenges and limitations associated with their use in specific industries. Here’s a detailed explanation:
1. Contamination and Harsh Environments:
Industries such as mining, construction, and agriculture often operate in harsh environments with high levels of contamination, including dust, dirt, and moisture. These contaminants can enter the track bearings and cause accelerated wear, reduced performance, and potential failure. Regular maintenance and appropriate sealing measures are required to mitigate these challenges.
2. High-Temperature Environments:
In industries like metal processing, glass manufacturing, and foundries, track bearings may be exposed to high temperatures. Excessive heat can affect the lubrication properties and structural integrity of bearings, leading to premature failure. Selecting track bearings specifically designed for high-temperature applications and using suitable lubricants are necessary to overcome this limitation.
3. Corrosive Chemicals:
Industries such as chemical processing, food and beverage, and wastewater treatment involve exposure to corrosive chemicals. Corrosion can significantly affect the performance and lifespan of track bearings. Choosing bearings made from corrosion-resistant materials or applying protective coatings can help address this challenge.
4. Heavy Load and Impact:
Industries like material handling, mining, and construction often require track bearings to withstand heavy loads and frequent impacts. Excessive load or impact can lead to premature wear, deformation, or even catastrophic failure of the bearings. Selecting track bearings with appropriate load capacities and impact resistance is crucial in these industries.
5. Precision and Accuracy:
In industries such as robotics, semiconductor manufacturing, and precision machining, track bearings may need to meet stringent requirements for precision and accuracy. Any deviation or play in the bearings can impact the overall performance and quality of the process. Using high-precision track bearings and ensuring proper alignment and installation are essential in these cases.
6. Speed and Acceleration:
Applications involving high-speed or rapid acceleration, such as automated assembly lines or conveyor systems, can impose additional challenges on track bearings. Excessive speed or acceleration can generate heat and vibration, leading to increased wear and reduced bearing life. Choosing track bearings with suitable speed and acceleration ratings is vital in these industries.
It is important to consult with bearing manufacturers or industry experts to identify and address any potential challenges or limitations specific to the industry and application at hand. By understanding these challenges and selecting track bearings designed to overcome them, industries can optimize performance, reliability, and longevity while mitigating risks and ensuring smooth operation.
What are track bearings, and how are they used in various applications?
Track bearings, also known as track rollers or track follower bearings, are specialized rolling bearings designed to operate in track-based systems. They are used in various applications that require guided linear or rotational motion. Let’s explore in detail the characteristics of track bearings and their common applications:
- Design and Construction: Track bearings typically consist of an outer ring, an inner ring, a set of rolling elements (such as rollers or needles), and a cage that holds the rolling elements together. The outer ring features a track or guide surface, while the inner ring is mounted on a shaft or stud. The rolling elements facilitate smooth rolling motion along the track, allowing for linear or rotational movement.
- Guided Motion: Track bearings are primarily used to provide guided motion in applications where components need to move along a defined path or track. The outer ring’s track surface interfaces with the track or guide rail, ensuring precise and controlled motion. This guided motion is crucial in various applications such as material handling systems, conveyors, cam mechanisms, and automated machinery.
- Load Support: Track bearings are designed to support and distribute loads, both radial and axial, in track-based systems. They can handle substantial loads while maintaining smooth motion and minimizing friction. The load-carrying capacity of track bearings makes them suitable for applications involving heavy loads, such as construction equipment, agricultural machinery, and industrial automation systems.
- Multiple Types: Track bearings come in various types to suit different application requirements. Some common types include yoke type track rollers, stud type track rollers, and cam followers. Yoke type track rollers have thick outer rings and can withstand high radial loads. Stud type track rollers have a stud instead of an inner ring and are suitable for applications with limited space. Cam followers have a stud with a built-in roller and are commonly used in cam-driven systems.
- Sealing and Contamination Protection: In many applications, track bearings are exposed to harsh environments and contaminants. To ensure reliable operation, track bearings often incorporate sealing arrangements or protective coatings. These features help prevent the ingress of dust, dirt, moisture, or other contaminants, prolonging the bearing’s service life and reducing the risk of premature failure.
- Various Applications: Track bearings find applications in a wide range of industries and systems. Some common applications include:
- Material Handling Systems: Track bearings are used in conveyors, roller tracks, and overhead cranes to facilitate smooth and guided movement of materials.
- Automated Machinery: Track bearings are employed in automated machines and robotic systems for precise motion control and positioning.
- Cam Mechanisms: Track bearings are utilized in cam-driven systems, where they follow the profile of the cam and translate the rotary motion into linear or oscillating motion.
- Construction Equipment: Track bearings are found in construction machinery, such as excavators, bulldozers, and compactors, to support the tracks or guide wheels.
- Agricultural Machinery: Track bearings are used in agricultural equipment, including tractors, combines, and harvesters, to support the tracks or guide wheels and provide reliable movement.
- Printing and Packaging Machinery: Track bearings are employed in printing presses, packaging machines, and labeling systems to ensure precise and guided movement of the printing heads, packaging materials, or labels.
In summary, track bearings are specialized rolling bearings designed for guided linear or rotational motion along a track or guide rail. They provide precise motion control, support substantial loads, and find applications in various industries such as material handling, automation, construction, agriculture, printing, and packaging. With their ability to facilitate guided motion and handle significant loads, track bearings contribute to the smooth and reliable operation of track-based systems in a wide range of applications.
editor by CX 2024-05-15