NJ1012M Single-Row Cylindrical Roller Bearing (60x95x18mm) For Industrial/Automotive
The NJ1012M is a high-performance single-row cylindrical roller bearing, designed for reliable operation and robust load-handling in diverse mechanical systems, widely used across industries.
Structural Features
Ring Design
- Outer Ring: Smooth inner surface as a stable raceway, made from high-quality vacuum-degassed high-carbon chromium steel (e.g., GCR15) for excellent fatigue strength, hardness, and wear resistance under heavy loads.
- Inner Ring with Integral Flange: Integral flange on one side guides rollers and maintains alignment. Crafted from high-grade bearing steel with precise machining for a tight shaft fit, enhancing radial load capacity and providing moderate axial load support (up to ~10% of radial load).
Rolling Element and Cage
- Cylindrical Rollers: Key load carriers, made from chrome steel with strict roundness, surface finish, and dimensional standards. Optimized shape transfers radial loads efficiently, reducing friction and wear.
- Cage: Keeps rollers spaced and aligned, usually steel or high-performance polymer. Allows free movement while preventing collisions, boosting efficiency and extending service life.
Key Dimensions
Parameter |
Value |
Significance |
Bore Diameter |
60 mm |
Precision-machined for snug shaft fit, ensuring efficient power transmission and avoiding vibration or premature failure. |
Outer Diameter |
95 mm |
Interfaces seamlessly with housing, distributing radial loads evenly to enhance stability and maintain lubrication clearance. |
Width |
18 mm |
Balances structural integrity and load capacity, determining roller quantity/size for versatile applications. |
Weight |
1.1 kg |
Reasonable weight for easy installation/transport, while providing necessary strength and durability. |
Technical Performance
Load Ratings
- Radial Dynamic Load Rating: Handles substantial continuous/intermittent radial forces, suitable for industrial machinery, automotive components, and power-transmission systems.
- Radial Static Load Rating: Withstands static/slowly changing radial loads without deformation, ensuring stability during startup, shutdown, or standby.
Speed Ratings
- Reference Speed: Optimal operating speed for peak performance and long life under normal conditions.
- Limit Speed: Maximum speed under specific conditions; requires careful monitoring of lubrication, load, and temperature to avoid accelerated wear.
Lubrication and Sealing
- Lubrication: Grease for general use, oil for high speeds/extreme temperatures. Pre-lubricated options simplify installation.
- Sealing: Rubber seals (dust/moisture protection) or metal shields (larger debris). Sealed versions extend life in harsh environments.
Application Scenarios
- Industrial Machinery: Supports rollers in conveyor systems and rotating shafts in machine tools (lathes, mills), ensuring smooth material handling and machining.
- Automotive Industry: Used in transmission systems (gear shafts, differentials) and wheel hubs of medium vehicles, handling radial loads for stable drivetrain operation.
- Power-Generation Equipment: Supports rotor shafts in electric motors and generator components, enduring radial/axial forces from high-speed rotation.
Product Advantages
- High Radial Load Capacity: Robust construction and quality materials handle heavy radial loads, suitable for heavy-duty applications.
- Smooth Operation: Precision-machined components minimize friction, reducing energy use, wear, vibration, and noise.
- Long Service Life: High-quality steel, strict manufacturing controls, and effective lubrication/sealing ensure durability under varying loads.
- Cost-Effective: Wide availability, long life, and low maintenance result in low total ownership cost, with versatile configurations.
- Easy Maintenance: Separable components simplify installation/replacement; pre-lubricated/sealed options reduce upkeep, with readily available parts.