Anonymous
Apr 10, 2026
Rating: 5/5
Perfect Fit for 3D Printer
Exactly what I needed for my 3D printer upgrade. The 8mm inner diameter fit perfectly on the shaft.
Description
Reviews
| Brand | - |
| Category | Industrial Small Parts / Bearings & Bushings |
| Origin | - |
| Material Composition | Chrome Steel GCr15 |
| Precision Rating | ABEC-7 |
| Seal Configuration | ZZ Metal Shield |
| Lubrication Type | Pre-lubricated High-Speed Grease |
| Available Inner Diameters | 6, 8, 10, 12, 20 mm |
| Cage Material | Steel Retainer |
| Operating Temperature | -20°C to +120°C |
| Noise Classification | Low Noise Z1 Group |
| Design Origin | German Engineering Standards |
| Package Quantity | 10 Pieces per Pack |
Anonymous
Apr 10, 2026
Rating: 5/5
Perfect Fit for 3D Printer
Exactly what I needed for my 3D printer upgrade. The 8mm inner diameter fit perfectly on the shaft.
Anonymous
Mar 28, 2026
Rating: 5/5
Durable and Reliable
Been using for 3 months in a small machinery project. No signs of wear yet. Highly recommend.
Anonymous
Mar 04, 2026
Rating: 4/5
Good Value for Money
Quality is good for the price. Shipping took a bit longer than expected but the product itself is solid.
Anonymous
Feb 21, 2026
Rating: 5/5
High Speed Ready
Spins very fast without overheating. I use them in high RPM applications and they hold up well.
Anonymous
Jan 21, 2026
Rating: 5/5
Smooth Operation for Drones
Used these for my drone motors and the difference is night and day. Very smooth spinning with minimal friction.
Q: Are these bearings made of stainless steel?
A: No, these are made of Chrome Steel GCr15 for optimal hardness and durability.
Q: Can I re-lubricate these bearings later?
A: Since these have ZZ metal shields, re-lubrication is difficult. We recommend replacing them when grease degrades.
Q: What is the maximum RPM for the 10mm size?
A: The maximum RPM varies by load, but they are rated for high-speed applications up to 30000 RPM under light load.
Q: What is the return policy if the size is wrong?
A: We offer a 30-day return policy for unused items in original packaging.
Q: Do you offer bulk discounts for over 50 packs?
A: Yes, please contact our sales team directly for bulk pricing options on large orders.