Attributes

Brand	-
Category	Industrial Small Parts / Bearings & Bushings
Origin	-
Material	Stainless Steel 304/440
Precision Grade	P5 (ABEC-5)
Brand	KIF
Seal Type	ZZ, 2RS, Open (Model Dependent)
Corrosion Resistance	High (Waterproof)
Cage Material	Steel or Nylon
Lubrication	Pre-lubricated Grease
Hardness	HRC 58-62 (440C)
Operating Temperature	-20°C to +120°C
Country of Origin	Imported

5 reviews

Anonymous

Apr 22, 2026

Rating: 4/5

Solid bearings

Good value for stainless steel. Shipping was fast and the seller responded quickly to my sizing question.

Anonymous

Apr 19, 2026

Rating: 5/5

Perfect replacement

Fit my fishing reel perfectly. Very smooth operation and noticed less friction compared to my old carbon steel bearings.

Anonymous

Apr 01, 2026

Rating: 5/5

Great for marine use

Used these on my boat trailer hubs. No rust after a full season of saltwater exposure. Smooth rotation and easy installation.

Anonymous

Mar 09, 2026

Rating: 4/5

Good quality

Smooth rotation, slightly tight fit initially but broke in well after some use. Good value for stainless steel bearings.

Anonymous

Feb 15, 2026

Rating: 5/5

Exactly as described

KIF brand is reliable. Packaging was secure and all bearings were individually wrapped to prevent contamination.

5 FAQ

Q: Can these handle high speeds?

A: Yes, the P5 precision grade supports moderate to high RPM applications typical for electric motors and spindles.

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

A: ZZ indicates metal shields on both sides, while 2RS indicates rubber contact seals. 2RS offers better waterproofing and dust protection.

Q: Is the inner ring magnetic?

A: 440 stainless steel is magnetic, while 304 is generally non-magnetic. Please check the specific model material composition.

Q: Are these suitable for food processing equipment?

A: Yes, 304 stainless steel is generally compatible with food grade applications, but please verify specific regulatory requirements for your machinery.

Q: Do I need to add more grease before installation?

A: They come pre-lubricated from the factory. Re-greasing depends on usage intensity and environmental conditions.

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