Anonymous
Apr 18, 2026
Rating: 5/5
Durable
Used them in a humid environment for months and there is no sign of rust. Genuine stainless steel.
Description
Reviews
| Brand | - |
| Category | Industrial Small Parts / Bearings & Bushings |
| Origin | - |
| Material | 440C Stainless Steel |
| Ball Material | Stainless Steel |
| Seal Type | ZZ (Metal) / 2RS (Rubber) |
| Precision Grade | ABEC-5 |
| Cage Material | Steel |
| Lubrication | Pre-lubricated with Grease |
| Hardness | 58-60 HRC |
| Noise Level | Z1 Low Noise Group |
| Operating Temperature | -20°C to 120°C |
| Package Quantity | 10 Pieces per Model |
Anonymous
Apr 18, 2026
Rating: 5/5
Durable
Used them in a humid environment for months and there is no sign of rust. Genuine stainless steel.
Anonymous
Apr 15, 2026
Rating: 5/5
Quiet Operation
Installed these in my cooling fans and noticed significantly less vibration and noise immediately.
Anonymous
Mar 20, 2026
Rating: 5/5
Smooth Spin
Very happy with the quality. These bearings spin freely and feel very precise for the price point.
Anonymous
Feb 02, 2026
Rating: 4/5
Good Value
Works well for hobby projects. One bearing was slightly stiffer than the others but overall satisfied.
Anonymous
Feb 01, 2026
Rating: 5/5
Perfect Fit
Dimensions were accurate according to my calipers. Fit perfectly into my 3D printer assembly.
Q: Are the shields removable for cleaning?
A: Yes, the ZZ metal shields can be removed with careful tool use, but this may affect warranty.
Q: What type of lubricant is pre-applied?
A: We use a standard high-speed bearing grease suitable for most general industrial applications.
Q: Can I return opened packs if they don't fit?
A: Returns are accepted within 30 days, but opened packages must be unused and in original condition.
Q: Is this suitable for high RPM applications?
A: Yes, these are designed for high-speed operations typically found in drones and spindles.
Q: Do you carry the 608 skate bearing size?
A: Please check our other listings as this catalog focuses on miniature sizes like 623 and 688.