Attributes

Brand	-
Category	Industrial Small Parts / Bearings & Bushings
Origin	-
Material	Carbon Steel
Inner Diameter Options	3mm, 4mm, 5mm
Outer Diameter Options	6mm, 7mm, 8mm
Sleeve Length	10mm
Surface Finish	Black Oxide Coated
Hardness Rating	HRC 45-50
Dimensional Tolerance	±0.05mm
Package Quantity	50 Pieces
Total Weight	250 Grams
Recommended Use	Machinery Repair, DIY Assembly

5 reviews

Anonymous

Apr 17, 2026

Rating: 4/5

Good assortment

Great variety of sizes in one pack. I wish there were more 5mm options included, but overall good value.

Anonymous

Mar 30, 2026

Rating: 5/5

Solid construction

Very durable steel. I used them as spacers in a high vibration environment and they held up well.

Anonymous

Mar 23, 2026

Rating: 5/5

High quality

No burrs on the edges and the inner bore is smooth. Easy to slide onto shafts without forcing.

Anonymous

Mar 15, 2026

Rating: 5/5

Great for repairs

Fixed my linkage issue quickly. The black oxide coating helps prevent rust which is a nice bonus.

Anonymous

Jan 29, 2026

Rating: 5/5

Exact specifications

These sleeves fit perfectly into my project. The dimensions were accurate and the steel quality is solid.

5 FAQ

Q: Do you offer bulk discounts?

A: Yes, please contact our sales department for pricing on large quantity orders.

Q: Are these metric sizes?

A: Yes, all dimensions are provided in millimeters based on metric standards.

Q: Is this stainless steel?

A: No, this is carbon steel with a black oxide finish for corrosion resistance.

Q: Can these be welded?

A: Yes, they are made of weldable carbon steel, though heat treatment may be affected.

Q: What is the inner surface roughness?

A: The inner bore is machined to a smooth finish suitable for sliding fits.

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