Product Description
PWKR Cam Follower Track Needle Roller Bearing PWKR52-2RS
| Cylindrical Roller Bearings
|
Spherical Roller Bearings |
Needle Roller Bearings |
| Tapered Roller Bearings
|
Crossed Slewing bearing | Thrust Roller Bearings |
Detailed Photos
Products Details
HOJE offers a wide range of needle roller bearings including needle roller & cage assemblies, drawn cups,s and solid needle roller bearings. They can also be specified as cam followers and track roller bearings by applications. The major application markets include automotive, consumer products, and general industrial goods. Conveyor, Power Tool, Money Counter, and Home Appliance.
NEEDLE ROLLER AND CAGE ASSEMBLY
(K, K‥T2, K‥S, K‥ZW, KMJ, KMJ‥S, KJ‥S, KV‥S,PCJ….. Series)
A needle roller and cage assembly include needle rollers and a cage that guides and retains the rollers.
— These assemblies use both the shaft and housing as raceway surfaces. Consequently, the cross-sectional thickness of the assembly is small, roughly equivalent to the diameter of the needle rollers.
— Because this bearing type has no inner or outer rings, the installation is much easier.
— These assemblies are available in both single-row and double-row configurations.
— As long as the tolerance limits of the shaft and housing are satisfied, the bearing radial internal clearance can be adjusted.
This bearing type is used for connecting rods in compact and mid-sized internal combustion engines (e.g. outboard engines and multipurpose engines), as well as reciprocating compressors.
DRAWN-CUP NEEDLE ROLLER BEARING
(HK, HK‥ZWD, HMK, HMK‥ZWD, BK, BK‥ZWD…… Series)
This bearing type includes an outer ring and needle rollers, which are both drawn from special thin steel plates by precision deep drawing, and a cage that guides the needle rollers precisely.
— This bearing product comprises an outer ring formed through a precision deep-drawing process from a thin special steel blank; needle rollers; and a cage that guides the rollers.
— A hardened and ground shaft or inner ring (IR Series) is used as the raceway.
— This bearing needs no axial clamping due to easy installation and a press-fit in the housing.
— Both a closed-end type to close around the end of the shaft and an open-end type are available.
— Furthermore, a type with a seal installed on a single side or on both sides is also available.
— The standard type includes a needle roller and cage assembly. In addition to this type, a special type with full complement rollers is available as an option.
MACHINED-RING NEEDLE ROLLER BEARINGS
(RNA48, RNA49, RNA59, RNA69, NK, NKS,NA48, NA49, NA59, NA69, NK+IR, NKS+IR ……Series)
This product mainly includes machined components – an outer ring and inner ring, needle rollers, and a cage that guides the rollers. In this bearing, the cage or needle rollers are guided by the rib or side plate of the outer ring. Consequently, the roller and cage assembly cannot be separated from the outer ring.
— Available in both metric dimensions and inch dimensions.
— This product is best-suited to a space-saving design due to its low section height, and large load capacity.
— Another advantage is high rigidity and high bearing accuracy due to the machined outer ring
— This bearing can be used with a housing made of light metal, because of its highly rigid outer ring. (Other than NKS small-size products)
— The outer ring has a lubrication hole and lubrication groove.
— Both single-row and double-row types are available.
— A type with a seal installed on a single side or on both sides is also available.
THRUST NEEDLE ROLLER BEARINGS
(AXK11, AS11, WS811, GS811,811, 812, 893, 874, K811, K812, K893…… Series)
The product is comprised of a needle or cylindrical rollers, a cage that guides and retains the rollers, and a disk-shaped bearing ring, and is capable of holding an axial load in 1 direction. The mounting surface can be used as a raceway surface when the mounting surface is beat-treated and finished. As a result, the bearing can be supplied without bearing ring raceways.
— Space Saving Design: Best-suited to save space because of its small section height and large load capacity.
— Bearing Types: Currently available bearing ring types are AS, WS, GS, and ZS. The AS type consists of a thin steel disk having undergone surface hardening, while the WS, GS, and ZS types are machined.
— Bi-Direction Axial Loading: This bearing can support large axial loads from both sides.
— Application: This complex bearing is designed to support a machine tool precision ball screw.
CYLINDRICAL NEEDLE ROLLER ROLLER FOLLOWERS
(NA22, RNAB2, NAB2, NATR, NUTR2, NUTW, NATV, NACV…… Series)
The track roller bearing is a needle roller bearing with a thick outer ring, which is applied to the cam roller, CZPT roller, eccentric roller, or rocker’s arm. The track roller bearings are mainly categorized into a stud-type track roller bearing (cam follower) and a yoke-type track roller bearing (roller follower). Various types of roller followers and cam followers are available.
— The bearing type with a cage is suitable for comparatively high-speed running because its rollers are guided by the cage.
— Having more rollers relative to a given size, a full complement roller type boasts greater load capacity.
— The outer surface is available in both spherical (crowning) profile and cylindrical profile.
— This cam follower (bearing) is selectively available in both metric and inch sizes.
— The stud is either a recessed head type allowing the use of a screwdriver or a hexagon socket head type so as to be mounted and adjusted easily
Packaging & Shipping
| Packaging | |
| 1)Commercial Bearings packaging: 1pc/plastic bag + color box + carton + pallet | |
| 2)Industrial Bearings packaging | |
| 3)According to the requirement of customers | |
| Payment | |
| 1) T/T:30% deposit, 70% should be paid before shipment. | |
| 2) L/C at sight. (high bank charge, not suggested, but acceptable ) | |
| 3) 100% Western Union in advance. (especially for air shipment or small amounts) | |
| Delivery | |
| 1) Less than 45 KGS, we will send by express. ( Door to Door, Convenient ) | |
| 2) Between 45 – 200 KGS, we will send by air transport. ( Fastest and safest, but expensive ) | |
| 3) More than 200 KGS, we will send by sea. ( Cheapest, but long time ) | |
Company Profile
HangZhou HOJE Bearing Co., LTD Specializing in the manufacture and sales of bearings and bearing accessories, we mainly produce deep groove ball bearings, pillow block bearings, Cylindrical and Spherical Roller Bearings, tapered roller bearings, and related components. Our factory has the most advanced equipment, first-class mechanical professional and technical personnel, and one-stop automatic production from bearing raw materials to finished products. We are willing to provide excellent services for factories that produce industrial equipment, vehicles, electromechanical tools, home appliances, instrumentation, fitness equipment, leisure sports equipment, users of various types of mechanical equipment and civil machinery, and domestic and foreign traders and distributors.
Company Advantages
1. FREE SAMPLES: contact us by email or trade manager, and we will send the free samples according to your request.
2. World-Class Bearing: We provide our customers with all types of bearings of world-class quality.
3. OEM or Non-Stand Bearings: Any requirement for Non-standard bearings is Easily Fulfilled by us due to our vast knowledge and links in the industry.
4. Genuine products With Excellent Quality: Company has always proved the 100% quality products it provides with genuine intent.
5. After-Sales Service and Technical Assistance: Company provides after-sales service and technical assistance as per the customer’s requirements and needs.
6. Quick Delivery: The company provides just-in-time delivery with its streamlined supply chain.
7. Cost Saving: We provide long-life, shock-resistant, and high-reliability bearings with excellent quality and better performance. Resulting in increased cost savings.
8. Attending customer queries promptly: We believe that if customers are satisfied then it proves our worth well. Customers are always given quick support.
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| Cage: | With Cage |
|---|---|
| Rows Number: | Single |
| Load Direction: | Radial Bearing |
| Style: | With Outer Ring, Without Inner Ring |
| Material: | Bearing Steel |
| Type: | Closed |
| Samples: |
US$ 0/Piece
1 Piece(Min.Order) | |
|---|
| Customization: |
Available
| Customized Request |
|---|
What are the benefits of using self-lubricating or maintenance-free track bearings?
Using self-lubricating or maintenance-free track bearings can offer several significant benefits in terms of convenience, performance, and cost-effectiveness. Let’s explore the advantages of utilizing self-lubricating or maintenance-free track bearings:
- Elimination of External Lubrication: One of the primary advantages of self-lubricating or maintenance-free track bearings is that they eliminate the need for external lubrication. These bearings are pre-lubricated with a solid lubricant or have a built-in lubrication system that provides a continuous supply of lubrication to the bearing surfaces. This eliminates the requirement for manual lubrication or periodic re-lubrication, saving time and effort in maintenance tasks.
- Extended Service Life: Self-lubricating or maintenance-free track bearings are designed to provide long service life. The presence of a solid lubricant or a self-lubricating material within the bearing helps reduce friction, wear, and the risk of surface damage. This results in improved durability and extended service life, reducing the frequency of bearing replacements and downtime for maintenance.
- Reduced Contamination and Cleanliness: External lubricants, such as grease or oil, can attract and accumulate contaminants, such as dust, dirt, or debris. In contrast, self-lubricating or maintenance-free track bearings minimize the risk of contamination since they do not require additional lubricants. This helps maintain a cleaner operating environment and reduces the potential for bearing failure due to contamination-related issues.
- Improved Reliability and Performance: Self-lubricating or maintenance-free track bearings offer consistent and reliable performance throughout their service life. The presence of an effective lubrication system ensures proper lubrication even under demanding operating conditions, such as high temperatures or high loads. This contributes to smoother and more predictable motion, reduced friction, and enhanced overall performance of the machinery or equipment.
- Cost Savings: While self-lubricating or maintenance-free track bearings may have a higher initial cost compared to standard bearings, they can result in cost savings over the long term. The elimination of manual lubrication and the extended service life of these bearings reduce maintenance requirements, labor costs, and the need for lubrication supplies. Additionally, the increased reliability and performance can minimize downtime and associated production losses.
- Ease of Installation: Self-lubricating or maintenance-free track bearings are typically designed for easy installation. They often come pre-assembled, pre-lubricated, or with integral lubrication systems, simplifying the installation process. This can save time and effort during initial setup or replacement of bearings in machinery or equipment.
Overall, self-lubricating or maintenance-free track bearings offer the advantages of reduced maintenance, extended service life, improved reliability, and cost savings. These bearings are particularly beneficial in applications where regular lubrication is challenging, time-consuming, or not feasible, or in environments where contamination control is critical.
Can track bearings be used in both light-duty and heavy-duty machinery applications?
Yes, track bearings can be used in both light-duty and heavy-duty machinery applications. They are versatile components that offer reliable support for linear motion in a wide range of industrial settings. Here’s a detailed explanation:
1. Light-Duty Machinery Applications:
In light-duty machinery applications, track bearings provide cost-effective and efficient solutions for various tasks. Light-duty track bearings are designed to handle lower loads and are commonly used in applications such as:
- Office automation equipment
- Consumer electronics
- Printing machinery
- Small conveyors and material handling systems
- Automated vending machines
- Textile machinery
These applications typically involve lighter loads and lower operating speeds, making light-duty track bearings suitable for providing smooth and reliable linear motion.
2. Heavy-Duty Machinery Applications:
Track bearings are also widely used in heavy-duty machinery applications that require robust components capable of handling substantial loads and challenging operating conditions. Heavy-duty track bearings are designed to withstand higher loads and offer increased durability. They are commonly employed in applications such as:
- Material handling equipment
- Construction machinery
- Mining equipment
- Transportation systems
- Industrial automation
- Large-scale conveyors
- Steel mills
These applications often involve heavy loads, high operating speeds, and demanding environments. Track bearings in heavy-duty machinery applications are engineered to provide reliable performance, extended service life, and resistance to factors such as contamination, shock, and vibration.
Track bearings are available in various sizes, designs, and load capacities, allowing them to be tailored to the specific requirements of both light-duty and heavy-duty machinery applications. Manufacturers offer a range of options to accommodate different load capacities, operating conditions, and performance specifications.
It is important to consider the specific requirements and operating conditions of the machinery application when selecting track bearings. Consulting with bearing manufacturers or industry experts can help ensure the appropriate track bearings are chosen for optimal performance and reliability in both light-duty and heavy-duty machinery applications.
How do track bearings compare to other types of bearings like ball bearings or roller bearings?
Track bearings, ball bearings, and roller bearings are all types of rolling bearings used in various applications. Let’s compare track bearings to ball bearings and roller bearings to understand their similarities and differences:
- Design and Construction: Track bearings, ball bearings, and roller bearings have different designs and constructions. Track bearings, also known as track rollers or track follower bearings, are designed specifically for guided linear or rotational motion along a track or guide rail. They feature an outer ring with a track surface, an inner ring, rolling elements (such as rollers or needles), and a cage. Ball bearings, on the other hand, have spherical rolling elements (balls) sandwiched between inner and outer rings. Roller bearings, as the name suggests, have cylindrical or tapered rolling elements (rollers) between inner and outer rings.
- Motion and Load Handling: Track bearings are primarily used for guided motion in track-based systems, while ball bearings and roller bearings are used for general rotational or linear motion. Track bearings are designed to support both radial and axial loads and provide smooth and controlled motion along the track. Ball bearings and roller bearings are also capable of supporting radial and axial loads but are typically used in applications where the motion is not constrained to a specific track or guide rail. Roller bearings, with their larger contact area and higher load-carrying capacity, are often preferred for applications with higher loads.
- Applications: Track bearings are commonly used in applications such as material handling systems, conveyors, cam mechanisms, automated machinery, construction equipment, and agricultural machinery, where guided motion along a track or rail is required. Ball bearings and roller bearings find applications in a wide range of industries and systems, including electric motors, pumps, automotive applications, industrial machinery, and appliances.
- Friction and Efficiency: Track bearings, ball bearings, and roller bearings all aim to minimize friction and ensure efficient operation. However, due to their different designs and contact surfaces, they exhibit varying levels of friction. Ball bearings typically have lower friction due to point contact between the balls and the raceways. Roller bearings, especially tapered roller bearings, distribute the load over a larger contact area, resulting in slightly higher friction compared to ball bearings. Track bearings, with their track interface, may have slightly higher friction compared to ball bearings or roller bearings due to the rolling elements’ contact with the track surface.
- Installation and Maintenance: Track bearings, ball bearings, and roller bearings require proper installation and maintenance for optimal performance and longevity. However, track bearings may require additional attention during installation as they need to be properly aligned with the track or guide rail. Regular lubrication and periodic inspection are essential for all types of bearings to ensure smooth operation and prevent premature failure.
In summary, track bearings, ball bearings, and roller bearings have distinct designs and applications. Track bearings are specialized for guided motion along a track or rail, while ball bearings and roller bearings are more versatile and used in a wide range of rotational or linear motion applications. Each type of bearing has its advantages and considerations in terms of load handling, friction, efficiency, and installation requirements. Selecting the appropriate bearing type depends on the specific application requirements, load conditions, motion characteristics, and environmental factors.
editor by CX 2024-02-25