Description
Reviews
| Brand | - |
| Category | Industrial Small Parts / Bearings & Bushings |
| Origin | - |
| Brand Name | C&U |
| Bearing Type | Deep Groove Ball Bearing |
| Model Series | 693, 694, 695, 696, 697, 698, 699 |
| Seal Configuration | 2Z (Metal Shield) / 2RZ (Rubber Seal) |
| Material Composition | Chrome Steel GCr15 |
| Precision Rating | ISO Class P0 / ABEC-1 |
| Cage Material | Stamped Steel |
| Lubrication Status | Pre-lubricated with Grease |
| Recommended Application | High-Speed Power Tools, Motors, Spindles |
| Country of Origin | China |
Anonymous
Mar 25, 2026
Rating: 4/5
Good value
Overall good quality for the price. One bearing felt slightly tighter than the others during installation, but once running they all perform well.
Anonymous
Mar 13, 2026
Rating: 5/5
High RPM stable
Using these in a high-speed spindle motor. They handle the speed without overheating. No noise even after several hours of continuous use.
Anonymous
Feb 26, 2026
Rating: 5/5
Excellent for rotary tools
Replaced the worn bearings in my Dremel tool with these. The operation is smooth and there is significantly less vibration than before. Highly recommend for DIY enthusiasts.
Anonymous
Feb 17, 2026
Rating: 5/5
Fast shipping
Arrived quickly and well packaged. Each bearing was individually wrapped to prevent damage. Will buy again for my workshop maintenance.
Anonymous
Jan 28, 2026
Rating: 5/5
Genuine product
I was worried about counterfeits but these are definitely genuine C&U bearings. The packaging was secure and the dimensions match the specifications perfectly.
Q: What is the maximum RPM these bearings can handle?
A: The maximum RPM varies by specific model size. Generally, these miniature bearings are designed for high-speed applications ranging from 20,000 to 50,000 RPM depending on load and lubrication.
Q: Are these bearings made of stainless steel?
A: No, these are made from Chrome Steel (GCr15) which offers high hardness and wear resistance. They are not stainless steel and should be kept dry to prevent rust.
Q: What is the return policy if I order the wrong size?
A: You can return unused items within 30 days of delivery. Please ensure the packaging is intact and contact our support team for a return authorization.
Q: Do I need to add additional grease before installation?
A: No, these bearings come pre-lubricated with standard grease suitable for most applications. Adding more grease may cause overheating at high speeds.
Q: Which seal type is better for dusty environments, 2Z or 2RZ?
A: For dusty environments, the 2RZ (Rubber Seal) is generally better as it provides a tighter seal against contaminants compared to the 2Z (Metal Shield).
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