Attributes

Brand	-
Category	Industrial Small Parts / Bearings & Bushings
Origin	-
Material Composition	POM (Polyoxymethylene) & Nylon Blend
Brand Name	KIF
Country of Origin	Japan
Inner Diameter	5 mm
Outer Diameter	10 mm
Width	4 mm
Max Load Capacity	50 N
Operating Temperature	-40°C to 120°C
Lubrication Type	Self-Lubricating Resin
Package Quantity	10 Units

5 reviews

Anonymous

Apr 16, 2026

Rating: 5/5

Quiet operation

Much quieter than metal bearings in my appliance repair. Great for noise-sensitive environments.

Anonymous

Apr 02, 2026

Rating: 4/5

Good quality

Fit was slightly tight initially but loosened up after use. Durability seems high.

Anonymous

Mar 28, 2026

Rating: 5/5

Perfect for robotics

Used these on a small arm project. Very smooth and no grease mess. The fit was precise.

Anonymous

Feb 21, 2026

Rating: 5/5

Great value

Genuine KIF quality at a reasonable price point. Will order again for future projects.

Anonymous

Feb 20, 2026

Rating: 5/5

Waterproof as stated

Used in a wet environment, no corrosion issues at all. Plastic holds up well against water.

5 FAQ

Q: Do I need to add oil to these bearings?

A: No, these are self-lubricating and designed to operate without additional grease or oil.

Q: Can they handle exposure to chemicals?

A: They are resistant to many oils and solvents, but avoid strong oxidizing acids.

Q: What is the shaft tolerance standard?

A: These are designed to fit standard h6 shaft tolerance specifications.

Q: Are these bearings magnetic?

A: No, the plastic materials used are non-magnetic and safe for sensitive electronics.

Q: What is the maximum RPM recommended?

A: For optimal lifespan, we recommend operating under 6000 RPM depending on the load.

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