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Home / Bearings & Bushings / German Imported MUH Stainless Steel Miniature Bearings S681/682/683/684/685/686/687/689

Attributes

Brand -
Category Industrial Small Parts / Bearings & Bushings
Origin -
Material 440C Stainless Steel
Brand German MUH
Precision Rating ABEC-7
Seal Type ZZ (Metal) or 2RS (Rubber)
Cage Material Stainless Steel
Lubrication Premium Low-Noise Grease
Hardness HRC 58-60
Noise Level Z1 Group
Operating Temperature -20°C to +120°C
Country of Origin Germany

5 reviews

A

Anonymous

Apr 21, 2026

Rating: 5/5

Genuine German product

Packaging was secure and the bearings match the specifications exactly. Fast shipping too.

A

Anonymous

Apr 16, 2026

Rating: 5/5

Smooth rotation

Very low friction. I use them in 3D printer idlers and the print quality improved due to consistent filament feed.

A

Anonymous

Apr 09, 2026

Rating: 5/5

Perfect for drone motors

These bearings are incredibly smooth. I used the S684 size for my racing drone and the performance improvement was noticeable immediately.

A

Anonymous

Apr 05, 2026

Rating: 4/5

Good but pricey

Quality is undeniable, but they are more expensive than standard chrome steel bearings. Worth it for specific applications though.

A

Anonymous

Mar 05, 2026

Rating: 5/5

High quality stainless steel

Needed corrosion resistance for a project near water. These MUH bearings hold up well without rusting after weeks of exposure.

5 FAQ

Q: What are the dimensions for the S685 model?

A: The S685 bearing dimensions are 5mm inner diameter, 11mm outer diameter, and 4mm width.

Q: Do you offer bulk pricing for over 100 units?

A: Yes, we offer tiered discounts for bulk orders. Please contact our sales team for a quote.

Q: Are these bearings suitable for high RPM applications?

A: Yes, the ABEC-7 precision allows for high-speed rotation, but please consult the load chart for specific limits.

Q: Is the grease food safe?

A: The standard lubrication is premium grease. For direct food contact, please select the specific food-grade variant.

Q: What is the difference between ZZ and 2RS seals?

A: ZZ refers to metal shields suitable for high speeds, while 2RS refers to rubber seals offering better protection against dust and moisture.

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