Attributes

Brand	-
Category	Industrial Small Parts / Bearings & Bushings
Origin	-
Material	High-Carbon Bearing Steel (GCr15)
Hardness	58-62 HRC
Available Sizes	4mm, 5mm, 6mm, 8mm, 10mm
Surface Finish	Precision Polished
Tolerance Class	IT6 Standard
Application	Linear Motion Guides, Machinery Spacers
Corrosion Resistance	Standard Oil Coating
Package Quantity	10 Pieces per Box
Weight per Unit	Approx. 5g - 50g (Varies by Size)
Country of Origin	Imported

5 reviews

Anonymous

Mar 27, 2026

Rating: 4/5

Good value

Solid steel but packaging was slightly damaged during shipping. Product itself is fine.

Anonymous

Mar 20, 2026

Rating: 5/5

Fast delivery

Exactly what I needed for repair. Arrived sooner than expected.

Anonymous

Feb 26, 2026

Rating: 5/5

High quality

Hardness is as described. I tested it with a file and it holds up well against wear.

Anonymous

Feb 07, 2026

Rating: 4/5

Nice fit

Slightly tighter than expected but ok. Good quality steel for the price.

Anonymous

Jan 30, 2026

Rating: 5/5

Perfect for my project

Works great with linear rails. The hardness is exactly as described and they fit snugly.

5 FAQ

Q: What is the return policy?

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

Q: Can I get 12mm sizes?

A: Currently we only stock up to 10mm in this listing.

Q: Are these sleeves hardened?

A: Yes, they are hardened to 58-62 HRC for durability.

Q: Do they come lubricated?

A: No, they come with a protective oil coating. Please apply appropriate lubricant before use.

Q: Is this stainless steel?

A: No, this is bearing steel. It has a protective coating but is not stainless.

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