Attributes

Brand	-
Category	Industrial Small Parts / Bearings & Bushings
Origin	-
Material	High-Carbon Steel
Inner Diameter	70mm / 75mm Options
Outer Diameter	80mm / 85mm Standard
Hardness	HRC 58-62
Surface Finish	Precision Polished
Tolerance Class	ISO H7/g6
Heat Treatment	Quenched and Tempered
Unit Weight	0.45 kg per Unit
Country of Origin	Manufactured in China
Customization	Length and ID Customizable

5 reviews

Anonymous

Apr 23, 2026

Rating: 5/5

Exact Specifications

Fit perfectly on our shaft. Hardness seems correct based on our testing.

Anonymous

Mar 29, 2026

Rating: 5/5

Wear Resistant

Using this in a high friction environment. Holding up well so far.

Anonymous

Mar 26, 2026

Rating: 4/5

Good Quality

Solid steel, but shipping took a week longer than expected.

Anonymous

Feb 10, 2026

Rating: 4/5

Nice Finish

Surface is very smooth. Easy to install with a press.

Anonymous

Jan 31, 2026

Rating: 5/5

Bulk Order Success

Ordered 50 units. Consistency across all parts was impressive.

5 FAQ

Q: What is the lead time for custom orders?

A: Standard stock ships in 2 days. Custom orders take 7-10 business days.

Q: Is a material certificate provided?

A: Yes, mill certificates are available upon request at checkout.

Q: Does this require lubrication?

A: We recommend standard machine oil for high-speed applications.

Q: Can I order a 72mm inner diameter?

A: Yes, please contact us for custom sizing requests.

Q: Can this be welded onto the shaft?

A: Welding is not recommended. Please use a press-fit installation method.

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