Description
Reviews
| Brand | - |
| Category | Industrial Small Parts / Bearings & Bushings |
| Origin | - |
| Material | High-Carbon Chrome Steel GCr15 |
| Seal Type | ZZ (Metal Shield) or 2RS (Rubber Seal) |
| Precision Grade | ABEC-5 / P5 Standard |
| Compatibility | NSK, NBK, and Equivalent Miniature Models |
| Package Quantity | 10 Pieces per Pack |
| Inner Diameter Range | 2mm to 12mm (Varies by Model) |
| Outer Diameter Range | 5mm to 28mm (Varies by Model) |
| Width Range | 2.5mm to 8mm (Varies by Model) |
| Lubrication | Pre-lubricated with Standard Grease |
| Country of Origin | Imported (Japan Industrial Standards) |
Anonymous
Mar 27, 2026
Rating: 3/5
Check your dimensions
They work, but make sure you measure twice. I thought I needed MR85 but needed MR84. Product is fine, my fault though.
Anonymous
Mar 16, 2026
Rating: 5/5
Perfect for my FPV build
These bearings fit perfectly in my motor mounts. Smooth rotation and no noticeable play. Great value compared to genuine NSK.
Anonymous
Mar 05, 2026
Rating: 4/5
Good quality, minor inconsistency
Most of them are silent and smooth. One bearing in the pack had a slight grind but still usable for low RPM applications.
Anonymous
Feb 03, 2026
Rating: 5/5
Fast shipping and well packaged
Arrived quickly. No rust or damage. Using them in a 3D printer extruder upgrade and they work flawlessly.
Anonymous
Jan 26, 2026
Rating: 5/5
Bulk buy success
Ordered multiple packs for our school robotics team. Consistent sizing across all batches and durable under load.
Q: Is there a warranty if a bearing is defective?
A: We offer a 30-day return policy for defective items or sizing errors. Please contact us for assistance.
Q: What is the tolerance on the inner diameter?
A: The tolerance follows standard ISO metrics for miniature bearings, typically within microns for ABEC-5 grade.
Q: Do these fit Tamiya gearboxes?
A: Yes, the MR series is commonly used in Tamiya and similar hobby gearboxes. Please check your specific model number.
Q: Can I use these for high-speed applications?
A: They are rated for moderate speeds. For extremely high RPM, please consult the specific technical specs for the model.
Q: Are these bearings pre-lubricated?
A: Yes, they come with standard grease lubrication suitable for general use upon arrival.
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