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AISI52100 Needle Roller for Automotive Parts


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A needle roller is a type of rolling element bearing that uses cylindrical rollers with a relatively small diameter. These rollers are known as needle rollers because of their resemblance to sewing needles, which are long and thin.

Product Description

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