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Home / Bearings & Bushings / NA, NKI, NKIS Needle Roller Bearings with Inner Ring: 9/10/12/13/16/20/25/30/35/40/50/60

Attributes

Brand -
Category Industrial Small Parts / Bearings & Bushings
Origin -
Series Type NA, NKI, NKIS
Bearing Material High Carbon Chrome Steel
Cage Material Steel Sheet or Polyamide
Precision Class ISO P0 (ABEC-1)
Load Type Radial
Operating Temperature -30°C to +120°C
Lubrication Grease or Oil Bath
Sealing Open Type
Inner Ring Status Included with Bearing
Compliance Standard ISO 3245

5 reviews

A

Anonymous

Apr 21, 2026

Rating: 5/5

Perfect replacement for industrial motor

Ordered the NKIS series for a conveyor belt repair. Dimensions were exact and the fit was smooth. Highly recommend for heavy machinery.

A

Anonymous

Mar 30, 2026

Rating: 5/5

Reliable for high load applications

We use these in our manufacturing line. They handle the radial load without overheating. Great value for the price.

A

Anonymous

Mar 01, 2026

Rating: 4/5

Good quality, packaging could be better

The bearings themselves are solid steel and work well. The box was slightly dented on arrival but the product was unaffected.

A

Anonymous

Feb 07, 2026

Rating: 4/5

Solid bearing, fast shipping

Needed these urgently for a repair job. Arrived on time and installed without issues. Losing one star only because grease was minimal.

A

Anonymous

Jan 31, 2026

Rating: 5/5

Exact specifications as listed

Measured the inner and outer rings with calipers. Everything matches the technical sheet. Will order again.

5 FAQ

Q: Do you offer bulk discounts for orders over 100 units?

A: Yes, please contact our sales team directly for volume pricing on large industrial orders.

Q: Is there a warranty on these components?

A: We offer a standard 1-year warranty against manufacturing defects under normal operating conditions.

Q: What is the hardness of the steel used?

A: The rings and rollers are hardened to approximately 60-64 HRC for durability and wear resistance.

Q: Can I buy just the inner ring separately?

A: This listing includes the inner ring with the needle roller bearing. Separate rings are available in a different SKU.

Q: Are these bearings pre-lubricated?

A: These are open type bearings. They can be used with grease or oil lubrication depending on your application needs.

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