Attributes

Brand	-
Category	Industrial Small Parts / Bearings & Bushings
Origin	-
Material	High-Carbon Steel
Hardness	58-62 HRC
Available Bore Sizes	3, 4, 5, 6, 7, 8, 9 mm
Inner Diameter Tolerance	ISO H7
Outer Diameter Tolerance	ISO g6
Surface Finish	Precision Polished
Heat Treatment	Quenched and Tempered
Surface Coating	Black Oxide
Package Quantity	10 Pieces per Set
Customization	Available upon Request

5 reviews

Anonymous

Apr 17, 2026

Rating: 5/5

Fast Shipping

Arrived quickly and well packaged. No damage during transit. Will order again.

Anonymous

Mar 21, 2026

Rating: 5/5

Durable Material

Holding up well under high load. The hardened steel shows no signs of wear after weeks of use.

Anonymous

Feb 06, 2026

Rating: 5/5

Precise Dimensions

Fit perfectly on my shaft. The tolerance is exactly as specified and the finish is smooth.

Anonymous

Jan 28, 2026

Rating: 5/5

Industrial Grade

Using these for machinery repair. They meet all our requirements for wear resistance.

Anonymous

Jan 26, 2026

Rating: 4/5

Good Product

Quality is solid. One sleeve had a slightly rough edge but nothing a file couldn't fix.

5 FAQ

Q: Can I order a custom bore size like 10mm?

A: Yes, we accept custom orders. Please contact us directly with your specifications.

Q: Are these resistant to corrosion?

A: They feature a black oxide coating which provides moderate corrosion resistance for indoor use.

Q: Do these sleeves require external lubrication?

A: Yes, we recommend applying standard machine oil or grease during installation for optimal performance.

Q: What is the return policy if the size is wrong?

A: We accept returns within 30 days if the item is unused and in original packaging.

Q: Is there a discount for bulk purchases?

A: Yes, volume discounts are available. Please reach out to our sales team for a quote.

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