Needle Rollers
Needle Rollers
Precision Needle Rollers for High-Performance Bearings
Needle rollers are cylindrical rollers with a small diameter (1mm–6mm) and a length greater than three times the diameter. Their compact size allows for high load-bearing performance in tight spaces.
As trusted needle rollers manufacturers, Atlas Ball & Bearing supplies precision needle rollers for bearings used across automotive, aerospace, and industrial applications. We also serve as one of the leading loose needle rollers suppliers in the UK.Types and End Profiles
Form A – Rounded ends
Also known as NRA or TB
Form B – Flat ends
Also known as NRB or TT
Needle Rollers
Available Materials
Needle rollers are offered in a variety of precision-engineered materials:
Chrome Steel (AISI 52100) – Excellent hardness and load capacity
Martensitic Stainless Steel (AISI 420) – Corrosion resistance with good wear strength
Austenitic Stainless Steel (AISI 302, 316) – Ideal for corrosive and hygienic environments
Tool Steel (AISI S2, M2) – Exceptional impact resistance for high-stress applications
Our wide material selection ensures the right fit for your application, whether you require high wear resistance, corrosion protection, or magnetic neutrality.
Sample our work
Where appropriate we can supply detailed technical data and samples for testing/evaluation by the customer prior to bulk supply or manufacture.
| DIMENSIONAL AND GEOMETRICAL ACCURACY | |||||
|---|---|---|---|---|---|
| Deviations and tolerances for diameter | Length tolerance limits | ||||
| Grade | Maximum Diameter Tolerance (µm) |
Gauge Division (µm) |
Roundness (µm) |
Surface Finish (µm) |
See table below |
| G2 | +0 ~ -2 | 2 | 1 | 0.1 | h13 |
| More details about Grade G2... | |||||
| G5 | +0 ~ -5 | 5 | 2 | 0.2 | h13 |
| More details about Grade G5... | |||||
| LENGTH TOLERANCES (mm) | |||
|---|---|---|---|
| Over | Up to | h13 | |
| - | 6 | +0 | -0.180 |
| More details about the range “- to 6 mm”... | |||
| 6 | 10 | +0 | -0.220 |
| More details about the range “6 to 10 mm”... | |||
| 10 | 18 | +0 | -0.270 |
| More details about the range “10 to 18 mm”... | |||
| 18 | 30 | +0 | -0.330 |
| More details about the range “18 to 30 mm”... | |||
| 30 | 50 | +0 | -0.330 |
| More details about the range “30 to 50 mm”... | |||
Where no grade is specified when ordering, Atlas will supply NRA G5 with a diameter tolerance of +0 ~ -5µm.
Applications of Needle Rollers
Bearings: As core rolling elements in needle bearing rollers
Automotive: Transmission systems, rocker arms, pumps, and electric motors
Industrial: Robotics, aerospace actuators, and gear mechanisms
Mechanical Guides: Linear slides, shafts, and miniaturised actuators
Why Choose Atlas?
As established needle rollers manufacturers, we deliver:
ISO-certified precision components
Fast turnaround on standard or bespoke orders
Engineering support from selection to fulfilment
Global export capabilities
Competitive prices on bulk and custom quantities
Whether you’re looking for high-volume loose needle rollers suppliers or a specialist in precision needle rollers, Atlas Ball & Bearing delivers performance, reliability, and global service.
Sample Our Work!
Take the first step towards precision and quality with our expert services. At Atlas Ball & Bearing, we’re committed to delivering top-notch precision balls and rollers for a wide range of industries, including gas, oil, medical, and transportation. Our dedicated team is ready to assist you with custom solutions tailored to your specific needs. Experience the Atlas Ball & Bearing difference now!
