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 d1 B
mm mm mm
KRV16-PP 16 6 28
KRV19-PP 19 8 32
KRV22-PP 22 10 36
KRV26-PP 26 10 36
KRV30-PP 30 12 40
KRV32-PP 32 12 40
KRV35-PP 35 16 52
KRV40-PP 40 18 58
KRV47-PP 47 20 66
KRV52-PP 52 20 66
KRV62-PP 62 24 80
KRV72-PP 72 24 80
KRV80-PP 80 30 100
KRV90-PP 90 30 100

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 (28-55mm)
Material: Bearing Steel
Spherical: Non-Aligning Bearings
Load Direction: Radial Bearing
Customization:
Available

|

Customized Request

cam folllow bearing

How do temperature variations and environmental conditions impact the performance of cam follower bearings?

Temperature variations and environmental conditions can significantly impact the performance of cam follower bearings. Let’s explore how these factors affect the bearings in detail:

Temperature Variations:

Temperature variations can have both direct and indirect effects on the performance of cam follower bearings:

  • Lubrication: Temperature changes can affect the viscosity and flow properties of lubricants used in cam follower bearings. High temperatures can cause lubricants to thin out, reducing their effectiveness in creating a protective film between the rolling elements and raceways. Conversely, low temperatures can cause lubricants to thicken, impeding their ability to flow and provide adequate lubrication. Insufficient or degraded lubrication can lead to increased friction, wear, and premature failure of the bearing.
  • Expansion and Contraction: Temperature variations cause the components of cam follower bearings to expand or contract. This can lead to changes in clearances, fit, and geometric tolerances within the bearing assembly. If not properly accounted for, excessive clearances or interference fits can affect the bearing’s load-carrying capacity, accuracy, and overall performance.
  • Thermal Stresses: Differential expansion and contraction due to temperature fluctuations can induce thermal stresses within the bearing components. These stresses can affect the dimensional stability, material fatigue properties, and overall structural integrity of the bearing. Excessive thermal stresses can lead to deformation, microcracking, or accelerated wear, compromising the performance and lifespan of the bearing.
  • Heat Dissipation: High operating temperatures in cam follower bearings can result in increased heat generation. If not effectively dissipated, excessive heat can lead to thermal overload, degraded lubrication, and accelerated wear. Proper heat dissipation mechanisms, such as cooling fins, lubricant circulation, or heat sinks, are necessary to maintain the bearing within acceptable temperature ranges and ensure optimal performance.

Environmental Conditions:

The environmental conditions in which cam follower bearings operate can also impact their performance:

  • Contaminant Ingress: Harsh environments with high levels of dust, dirt, moisture, or other contaminants pose a significant risk to cam follower bearings. Contaminants can enter the bearing assembly and cause abrasive wear, corrosion, or damage to the rolling elements and raceways. Seals and shields are used to protect the bearing from such contaminants, ensuring reliable operation and extending the bearing’s service life.
  • Corrosion and Chemical Exposure: Exposure to corrosive substances, chemicals, or aggressive media can degrade the bearing’s materials and surfaces. Corrosion can lead to pitting, surface roughness, or material deterioration, compromising the bearing’s load-carrying capacity and overall performance. Proper material selection, protective coatings, and sealing solutions are essential to mitigate the effects of corrosion and chemical exposure.
  • Humidity and Moisture: High humidity or exposure to moisture can promote the formation of water condensation or the absorption of moisture by the bearing components. This can lead to rust, oxidation, or lubricant contamination, impairing the bearing’s performance and lifespan. Effective sealing and proper maintenance practices are necessary to safeguard against the detrimental effects of humidity and moisture.
  • Extreme Environments: Cam follower bearings operating in extreme environments, such as high altitudes, underwater applications, or extreme temperatures, require specialized designs and materials. These extreme conditions can pose additional challenges, such as reduced oxygen levels, increased pressure differentials, or extreme temperature gradients. Bearings designed for such environments incorporate features to address these challenges and ensure reliable performance.

Considering temperature variations and environmental conditions is crucial when selecting cam follower bearings. It allows for the proper choice of materials, lubrication methods, sealing solutions, and protective measures to ensure optimal performance, longevity, and reliability in diverse operating conditions.

cam folllow bearing

What considerations are important when selecting the appropriate size and stud type for a cam follower bearing?

When selecting the appropriate size and stud type for a cam follower bearing, several considerations are important to ensure optimal performance and reliability. Let’s explore these considerations:

1. Load Requirements: Consider the anticipated load conditions that the cam follower bearing will be subjected to. Determine the maximum radial and axial loads that the bearing needs to support. This information is crucial in selecting a bearing with the appropriate load-carrying capacity to ensure reliable operation and prevent premature wear or failure.

2. Operating Speed: Take into account the anticipated operating speed of the cam follower bearing. Higher speeds can affect factors such as lubrication requirements, heat generation, and bearing fatigue life. Ensure that the selected bearing is suitable for the anticipated speed range to avoid issues such as excessive friction, overheating, or premature wear.

3. Environmental Conditions: Evaluate the environmental conditions in which the cam follower bearing will operate. Factors such as temperature, humidity, presence of contaminants, and exposure to corrosive substances can affect the bearing’s performance and lifespan. Select a bearing with appropriate materials, coatings, and seals that can withstand the specific environmental conditions to ensure long-term reliability.

4. Stud Type: Consider the stud type required for the application. Cam follower bearings typically come with different stud types, such as threaded studs, eccentric studs, or plain studs. The choice of stud type depends on factors such as the method of attachment, the need for adjustable positioning, or specific application requirements. Select the appropriate stud type that best suits the intended application.

5. Space Constraints: Assess the available space and clearance limitations in the application. Cam follower bearings come in various sizes and configurations. Ensure that the selected bearing and stud type fit within the available space without interference with other components or compromising the required motion range.

6. Lubrication: Consider the lubrication requirements of the cam follower bearing. Proper lubrication is essential for reducing friction, dissipating heat, and extending the bearing’s life. Some bearings require regular lubrication, while others may be pre-lubricated or sealed. Determine the lubrication method and frequency that align with the application’s needs and maintenance capabilities.

7. Alignment and Tracking: Evaluate the alignment and tracking requirements of the cam follower bearing. Depending on the application, the bearing may need to accurately track and follow a specific cam profile or track. Consider the design features of the bearing that provide proper alignment and tracking capabilities, such as integral flanges or adjusting mechanisms.

8. Maintenance and Serviceability: Take into account the maintenance and service requirements of the cam follower bearing. Consider factors such as accessibility for lubrication, inspection, or replacement. Select a bearing that allows for ease of maintenance and minimizes downtime during servicing operations.

9. Manufacturer and Quality: Choose a reputable manufacturer known for producing high-quality cam follower bearings. Ensure that the selected bearing complies with industry standards and undergoes rigorous quality control processes. This helps to ensure reliability, consistency, and availability of technical support when needed.

By considering these important factors, you can select the appropriate size and stud type for a cam follower bearing that meets the specific requirements of your application. This will result in optimal performance, longevity, and reliability of the bearing within the automation or machinery system.

cam folllow bearing

What are cam follower bearings and how are they used in various mechanical applications?

Cam follower bearings, also known as track followers, are specialized rolling element bearings designed to follow the contour or profile of a cam. They are commonly used in various mechanical applications where linear or rotational motion needs to be translated into a different direction or type of motion. Cam follower bearings consist of a stud or shaft with a roller or needle bearing mounted on it, allowing the bearing to roll along the surface of a cam. Here’s a detailed look at cam follower bearings and their applications in mechanical systems:

  • Design and Working Principle:
  • Cam follower bearings typically consist of three main components: a stud or shaft, a bearing or roller assembly, and a cage or retainer. The stud or shaft provides the mounting point for the bearing and is often equipped with a threaded end for easy installation. The bearing assembly, which can be a roller or needle bearing, is designed to roll or slide along the surface of a cam. The cage or retainer holds the rolling elements in place and ensures smooth operation. As the cam rotates or moves, the cam follower bearing follows the cam’s profile, converting the motion into linear or oscillating movement.

  • Types of Cam Follower Bearings:
  • There are several types of cam follower bearings available, each designed to suit specific applications and operating conditions. Some common types include:

    • Stud-type cam followers: These have a stud or bolt for mounting and are used in applications where the cam follower needs to be attached to a structure.
    • Yoke-type cam followers: These have a yoke or integral flange for mounting and are commonly used in applications where the cam follower needs to be guided or supported.
    • Heavy-duty cam followers: These are designed to handle higher loads and provide increased durability in demanding applications.
    • Needle roller cam followers: These use needle rollers instead of cylindrical rollers, offering high load-carrying capacity and compact design.
  • Applications of Cam Follower Bearings:
  • Cam follower bearings find applications in a wide range of mechanical systems and industries. Some common uses include:

    • Machinery and Equipment: Cam follower bearings are widely used in machinery and equipment, such as conveyors, packaging machines, printing presses, textile machinery, and woodworking machinery. They are used to convert rotary motion into linear or oscillating motion, enabling the precise and controlled movement of components.
    • Automotive Industry: Cam follower bearings are employed in automotive applications, including engines, valve trains, fuel injection systems, and suspension systems. They help control valve timing, provide smooth movement of components, and support high-speed rotation.
    • Robotics and Automation: Cam follower bearings play a crucial role in robotics and automation systems, where they are used for guiding and supporting linear and rotational movements. They are commonly found in robotic arms, pick-and-place mechanisms, and automated assembly lines.
    • Aerospace and Defense: Cam follower bearings are utilized in aerospace and defense applications, such as aircraft landing gear systems, control surfaces, and missile guidance systems. They provide reliable motion control and support in demanding environments.
    • Material Handling: Cam follower bearings are used in material handling equipment, such as forklifts, cranes, and hoists. They facilitate smooth and controlled movement of loads, ensuring efficient and safe operation.

In summary, cam follower bearings are specialized bearings that follow the profile of a cam to convert rotary motion into linear or oscillating motion. They are used in various mechanical applications across industries, providing precise motion control, support, and guidance. Whether in machinery, automotive systems, robotics, aerospace, or material handling equipment, cam follower bearings play a crucial role in enabling efficient and reliable operation.

China factory Stud Type Track Roller Bearing Cam Follower Bearing Krv16PP, Krv19PP, Krv22PP, Krv26PP, Krv30PP, Krv32PP, Krv35PP, Krv40PP   with high qualityChina factory Stud Type Track Roller Bearing Cam Follower Bearing Krv16PP, Krv19PP, Krv22PP, Krv26PP, Krv30PP, Krv32PP, Krv35PP, Krv40PP   with high quality
editor by CX 2024-05-15