Attributes

Brand	-
Category	Industrial Small Parts / Bearings & Bushings
Origin	-
Material	Chrome Steel (GCr15)
Bore Diameter	1.5mm, 2mm, 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 12mm
Outer Diameter	4mm to 24mm (Corresponding to Bore)
Flange Type	Shoulder-Step Cup Flanged
Precision Rating	ABEC-1 / ISO Class 6
Seal Type	Open, Metal Shield (ZZ), or Rubber Seal (2RS)
Cage Material	Steel or Nylon
Lubrication	Pre-greased (Standard)
Operating Temperature	-20°C to 120°C
Common Applications	Robotics, Drones, Miniature Motors, Toys

5 reviews

Anonymous

Apr 15, 2026

Rating: 5/5

Highly recommend for robotics

Using these in a robotic arm joint. They handle the load well and stay in place thanks to the flange design.

Anonymous

Mar 23, 2026

Rating: 5/5

Perfect for my RC project

These bearings fit exactly into the motor housing. Smooth rotation and no play. Great quality for the price.

Anonymous

Mar 17, 2026

Rating: 4/5

Good value, slight grease smell

Works well for my miniature gearbox. Had a slight industrial grease smell upon opening but dissipated after use.

Anonymous

Feb 07, 2026

Rating: 5/5

Exact fit as described

Measured the bore with calipers and it was spot on 5mm. Flange sits flush. Very satisfied with the precision.

Anonymous

Feb 06, 2026

Rating: 3/5

Okay quality for hobby use

They work but feel a bit stiff initially. Needed some run-in time before becoming smooth. Acceptable for non-critical parts.

5 FAQ

Q: What is the tolerance on the outer diameter?

A: We follow ISO standard tolerances for miniature bearings, typically within 0 to -0.008mm depending on the specific size.

Q: Can I remove the seals to clean and re-lubricate?

A: Yes, the 2RS rubber seals can be carefully removed with a fine needle, but this may void warranty and affect dust protection.

Q: Do you offer these in stainless steel material?

A: Standard stock is Chrome Steel. We may offer stainless steel variants for bulk orders. Please contact support for customization.

Q: What is the maximum RPM for the 3mm bore size?

A: For the 3mm bore, the recommended max speed is approximately 25,000 RPM under light load conditions.

Q: Is there a bulk discount for ordering 100 pieces?

A: Yes, volume discounts apply for orders over 50 units. Please add the quantity to your cart to see the adjusted price.

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