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Home / Bearings & Bushings / Bearing 304/440 Stainless Steel Corrosion Resistant S634 635 608 6800 6900ZZ

Attributes

Brand -
Category Industrial Small Parts / Bearings & Bushings
Origin -
Material Composition 304/440 Stainless Steel
Seal Configuration ZZ (Metal Shield)
Precision Tolerance ABEC-1 / ISO Class 6
Cage Type Steel Riveted
Lubricant Type Standard Grease
Inner Diameter Specification 4mm - 10mm (Model Dependent)
Outer Diameter Specification 16mm - 22mm (Model Dependent)
Width Specification 5mm - 8mm (Model Dependent)
Dynamic Load Capacity Varies by Model Size
Operating Temperature -20°C to 120°C

5 reviews

A

Anonymous

Apr 22, 2026

Rating: 5/5

Exactly as described

Dimensions were accurate and packaging protected the bearings well during shipping. Will order again.

A

Anonymous

Mar 12, 2026

Rating: 5/5

Smooth operation

Installed these on my equipment and they run very smoothly. No noise or vibration detected during operation.

A

Anonymous

Feb 22, 2026

Rating: 5/5

Perfect for humid environments

Exactly what I needed for my marine project. The stainless steel holds up well against saltwater spray.

A

Anonymous

Feb 06, 2026

Rating: 4/5

Good value

Solid bearings for the price. They were slightly stiff out of the box but loosened up after a short run-in period.

A

Anonymous

Jan 29, 2026

Rating: 5/5

Excellent corrosion resistance

Used these in a high humidity environment and they show no signs of rust after three months. Very satisfied with the quality.

5 FAQ

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

A: Yes, please contact our sales team directly for volume discount quotes on large orders.

Q: Can I re-lubricate these bearings later?

A: Since these are ZZ shielded, re-lubrication is difficult without removing the shields. They come pre-lubricated for standard life.

Q: How long does shipping typically take?

A: Standard shipping usually takes 3-5 business days within the continental US.

Q: What is the main difference between 304 and 440 steel here?

A: 440 steel is harder and offers better wear resistance, while 304 offers excellent general corrosion resistance.

Q: Are these suitable for continuous water exposure?

A: Yes, the 440 stainless steel variant offers high corrosion resistance suitable for wet environments.

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