Description
Reviews
| 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 |
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.
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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