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{"title":"NJ304EM High Radial Load Bearing Roller Cylindrical Stable Operation","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/7a\/67\/dfac24aa8e18975804e4b37e02d9-200x200-1\/nj304em_high_radial_load_bearing_roller_cylindrical_stable_operation.jpg","attrs":{"Brand Name":"Kesle","Place of Origin":"CHINA","Minimum Order Quantity":"1","Payment Terms":"T\/T, Western Union, MoneyGram,PayPal"}}
NJ1008M Single-Row Cylindrical Roller Bearing (40x68x15mm) For Industrial/Automotive
The NJ1008M is a precision single-row cylindrical roller bearing, designed for robust performance and reliability across diverse mechanical applications, making it a top choice in multiple industries.
Structural Features
Ring Design
Outer Ring: Features a smooth inner surface as a stable raceway, crafted from premium vacuum-degassed high-carbon chromium steel (e.g., GCR15) for exceptional fatigue strength, hardness, and wear resistance under heavy loads.
Inner Ring with Integral Flange: Boasts an integral flange to guide rollers and ensure alignment. Made of high-grade bearing steel with precise machining for a tight shaft fit, enhancing radial load capacity and offering moderate axial load support.
Rolling Element and Cage
Cylindrical Rollers: Primary load carriers, made from chrome steel with strict standards for roundness, surface finish, and dimensions. Optimized to transfer radial loads efficiently, reducing friction and wear.
Cage: Keeps rollers spaced and aligned, typically made of steel or high-performance polymers. Allows free movement while preventing collisions, boosting efficiency and extending service life.
Key Dimensions
Parameter
Value
Significance
Bore Diameter
40 mm
Precision-machined for a secure shaft fit, ensuring efficient power transmission and preventing vibration or premature failure.
Outer Diameter
68 mm
Designed to interface with housings, distributing radial loads evenly to enhance system stability and maintain proper lubrication clearance.
Width
15 mm
Balances structural integrity and load capacity, determining roller quantity and size for versatile application use.
Weight
0.22 kg
Lightweight design eases installation and reduces system weight, beneficial for mobile or high-speed setups.
Technical Performance
Load Ratings
Radial Dynamic Load Rating: Handles heavy 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: Options include rubber seals (dust/moisture protection) and metal shields (larger debris). Sealed versions extend life in harsh environments.
Application Scenarios
Industrial Machinery: Used in conveyor systems to support heavy-load rollers and machine tools (lathes, mills) for precise shaft support during cutting.
Automotive Industry: Applied in transmission systems (gear shafts, differentials) and wheel hubs of small-to-medium trucks, handling radial loads for smooth 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 enable handling heavy radial forces, reducing breakdown risks in heavy-duty applications.
Smooth Operation: Precision-machined components minimize friction, lowering 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 a low total cost of ownership, with versatile configurations.
Easy Maintenance: Separable components simplify installation/replacement; pre-lubricated/sealed options reduce upkeep, with readily available parts.
Introduction:
1.Covering an area of 80 mu (about 53,333 square meters), our factory has a 60-person team including 4 professional engineers, ensuring stable production and technical support.
2. Focusing on bearing production for 25 years, quality is our only guarantee
3. Wafangdian Bearing ...
Introduction:
1.Covering an area of 80 mu (about 53,333 square meters), our factory has a 60-person team including 4 professional engineers, ensuring stable production and technical support.
2. Focusing on bearing production for 25 years, quality is our only guarantee
3. Wafangdian Bearing ...
