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Home / Bearings & Bushings / Stainless Steel Bearing Inner Diameter 2 3 4 5 6 7 8 9 10-50 S634 635 608 6800 6900ZZ

Attributes

Brand -
Category Industrial Small Parts / Bearings & Bushings
Origin -
Material 440C Stainless Steel
Bearing Type Deep Groove Ball Bearing
Seal Configuration ZZ (Double Metal Shield)
Precision Grade ABEC-7
Hardness HRC 58-60
Max Operating Temperature 300°C (572°F)
Min Operating Temperature -20°C (-4°F)
Cage Material Stainless Steel
Lubrication High-Temperature Grease
Package Quantity 10 Pieces per Box

5 reviews

A

Anonymous

Mar 12, 2026

Rating: 5/5

Excellent for marine use

These bearings hold up well in salty conditions. No rust after a month of heavy use on my boat trailer.

A

Anonymous

Mar 08, 2026

Rating: 5/5

High temp reliability

Using these in a high heat application near an engine. They perform consistently without seizing.

A

Anonymous

Mar 03, 2026

Rating: 5/5

Great value

Quality matches more expensive brands I have used in the past. Will buy again for future projects.

A

Anonymous

Feb 25, 2026

Rating: 4/5

Smooth operation

Very quiet and smooth rotation. Shipping took a bit long though, but the product quality makes up for it.

A

Anonymous

Feb 16, 2026

Rating: 4/5

Good fit

Measured exactly as described. Installation was smooth and the sizing was accurate for my machinery.

5 FAQ

Q: Can I use these for food processing machinery?

A: While stainless, please verify specific food-grade certifications for your region before use in food contact areas.

Q: Are these suitable for underwater applications?

A: Yes, the 440C steel provides strong corrosion resistance for wet environments, though regular maintenance is recommended.

Q: What is the inner diameter of the 608 model?

A: The 608 model has a standard inner diameter of 8mm.

Q: Do these come pre-lubricated?

A: Yes, they are factory lubricated with high-temperature grease ready for immediate use.

Q: Is the shield removable for cleaning?

A: The ZZ shields are non-contact and can be removed carefully for maintenance if necessary.

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