Needle rollers are used in various applications where high radial load capacity and space-saving design are required. They are commonly found in automotive and industrial machinery, such as engines, transmissions, pumps, and gearboxes.
Chrome steel needle roller
Material：GCr15 / AISI52100 / 100Cr6 / SUJ-2
Diameters: 1 mm to 10 mm
Length: 1 mm to 50 mm
Grade ：G2/G3/G5
Type: NRB, NRA, ZB
OEM: as the drawing
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Chemical Compostion % | |||||||
C | Si | Mn | P | S | Cr | Mo | Ni |
0.95 | 0.15 | 0.25 | 0.03 | 0.03 | 1.40 | 0.10 | 0.30 |
1.05 | 0.35 | 0.45 | Max | Max | 1.65 | Max | Max |
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Mechanical Properties | |||||||
Tensile strength | 325,000 | psi | |||||
Yield strength | 295,000 | psi | |||||
Modulus of elasticity | 29,500,000 | psi | |||||
Elongation in two inches | 5 | % | |||||
Reduction in area | 8 | % | |||||
Density | 7.83 | g/cm3 | |||||
Hardness | 61-65HRC | ||||||
Needle roller advantage:
The main advantage of needle rollers is their high load-carrying capacity in relation to their small size. Due to their smaller diameter compared to other types of rollers, they can fit into tight spaces and support heavy loads. Needle roller bearings have a high length-to-diameter ratio, allowing them to distribute the load evenly over a larger surface area.
Needle roller mail application:
* Needle roller bearing
* Tripod joint
* Universal joint
* Linear guide
*Textile machines
*Gearboxes
*Agricultural Equipment