Bearing Steel Needle Roller

Bearing Steel Needle Roller Product Overview

Guangyang's strength lies in producing high-end needle rollers with a diameter of 0.5mm x length of 1.5mm to 6mm x length of 40mm and a precision of 0.001μm. The main products are needle rollers, primarily made of bearing steel, stainless steel, stainless steel, high-carbon steel, ZOCM, and other custom materials.

Core Advantages

1. High Load Capacity

   • Material Characteristics: Bearing steel (such as GCr15, SAE 52100) achieves a hardness of HRC 60-65 after heat treatment, capable of withstanding extremely high contact stresses (e.g., 3000-4000 MPa), suitable for heavy loads or impact loads.

   • Line Contact Design: The contact between the needle roller and the raceway is line contact (not point contact), resulting in a more uniform pressure distribution per unit area. The load capacity of bearing steel needle roller s is several times higher than that of ball bearings.

2. Wear Resistance and Long Service Life

   • Heat Treatment Process: Through quenching + low-temperature tempering, a martensitic structure is obtained, resulting in excellent surface wear resistance for bearing steel needle roller s while maintaining core toughness.

   • Surface Finish: Precision grinding achieves a surface roughness of Ra 0.05µm, reducing friction and wear and extending service life (especially under high-speed or poorly lubricated conditions).

3. Space Saving and Lightweight Design

   • Small Diameter Design: Small needle roller diameter (as small as 1mm) and low radial section height make it suitable for compact structures with limited space (such as gearboxes and aero engines).

   • Optimized Length-to-Diameter Ratio: A large length-to-diameter ratio (typically 4-10 times) allows bearing steel needle roller s to provide maximum load-bearing contact area within a limited space.

4. High-Speed Adaptability

   • Low Inertia: The small needle roller mass results in low centrifugal force during high-speed rotation, reducing the risk of slippage (suitable for speeds above 10,000 rpm).

   • Lubrication Compatibility: Compatible with grease, oil mist, or solid lubricants, reducing temperature rise at high speeds.

5. Precision and Stability

   • Strict Dimensional Tolerances: Precision levels up to P4/P2 (tolerance +0.002mm) according to ISO standards ensure smooth operation and low vibration.

   • Deformation Resistance: High rigidity design results in minimal deformation under load, making it suitable for precision transmissions (such as machine tool spindles and robot joints).

6. Economic Advantages

   • Replaces Sliding Bearings: In reciprocating or oscillating mechanisms, needle roller bearings have a low coefficient of friction (0.001-0.005), reducing energy consumption by over 30%.

   • Low Maintenance Costs: The bearing steel needle roller seal design allows for lifetime lubrication, reducing downtime for maintenance.

Common Applications Include:

• Automotive Industry: Components such as gearboxes, clutches, steering systems, engine camshafts, and chassis suspensions utilize needle roller bearings (containing needle rollers) for efficient transmission and support.

• Machinery Manufacturing: Needle roller bearings can adapt to the installation requirements of confined spaces in machine tool spindles and guideways, transmission components in textile machinery, and roller supports in printing machinery.

• Hydraulic and Pneumatic Equipment: Moving parts such as pistons and plungers inside hydraulic pumps and motors use needle roller bearings to reduce friction and improve equipment efficiency.

• Medical Devices: The rotating or sliding structures of some precision medical devices require needle rollers to provide stable support and low-friction movement.

• Construction Machinery: In hydraulic cylinders and joint components of equipment such as excavators and loaders, needle rollers can withstand large loads and adapt to complex working conditions.

The core requirement in these scenarios is to save space using the slender structure of needle rollers, while simultaneously reducing equipment wear and improving operating efficiency through rolling friction.

Bearing Steel Needle Roller Parameters