Description
Reviews
| Brand | - |
| Category | Industrial Small Parts / Bearings & Bushings |
| Origin | - |
| Brand | ZCD / Jiuyuan |
| Model Series | 623, 624, 625, 626, 627, 628, 629 |
| Material | Chrome Steel GCr15 |
| Seal Type | ZZ (Metal Shield) / DDU (Rubber Seal) |
| Precision Rating | ABEC-1 / ISO P0 |
| Cage Material | Steel Cage |
| Lubrication | Pre-lubricated with Grease |
| Country of Origin | Imported (Japan Spec) |
| Package Quantity | 10 Pieces per Pack |
| Warranty | 6 Months Manufacturer Warranty |
Anonymous
Apr 08, 2026
Rating: 5/5
Reliable supplier
This is my third order. Consistency is key for my machinery projects and these deliver every time.
Anonymous
Apr 06, 2026
Rating: 5/5
Excellent quality
Genuine feel and weight. The ZZ shields are secure. Highly recommend for hobbyist robotics.
Anonymous
Apr 04, 2026
Rating: 5/5
Perfect for drone motors
These bearings are smooth and handle high RPMs well. I used them on my racing drone and noticed less friction.
Anonymous
Apr 01, 2026
Rating: 5/5
Smooth operation
Very quiet operation compared to my old bearings. Shipping was fast and packaging protected the items well.
Anonymous
Mar 11, 2026
Rating: 4/5
Good value for money
Quality is decent for the price. One bearing was slightly tight out of the box but loosened up after use.
Q: What is the maximum RPM for the 624 model?
A: It varies by load, but they are generally suitable for high-speed applications up to 30,000 RPM.
Q: Are these compatible with standard 626 mounts?
A: Yes, these bearings follow standard ISO dimensions for compatibility with standard mounts.
Q: Is the seal metal or rubber on the DDU version?
A: The DDU version features non-contact rubber seals for better dust and moisture protection.
Q: Do these come pre-lubricated?
A: Yes, all bearings come pre-lubricated with standard grease ready for installation.
Q: Can I mix sizes in one order?
A: Please select specific sizes per SKU, but you can order multiple SKUs in one checkout.
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