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Home / Bearings & Bushings / High-Precision Hardened Steel Bushing/Guide Sleeve: ID 18/19/20mm, Custom Non-Standard Bearing Steel Inner Rings Assortment
Bearings & Bushings

Attributes

Brand -
Category Industrial Small Parts / Bearings & Bushings
Origin -
Material Composition GCr15 High-Carbon Chromium Bearing Steel
Heat Treatment Quenched and Tempered for Stability
Surface Hardness HRC 58-62
Bore Diameter Options 18mm, 19mm, 20mm (Custom Available)
Outer Diameter Tolerance +/- 0.01mm
Surface Roughness Ra 0.4 micron
Precision Grade ABEC-5 Equivalent
Customization Availability Non-Standard Sizes Accepted
Package Dimensions 10cm x 10cm x 5cm per Unit
Warranty Period 12 Months Against Defects

5 reviews

A

Anonymous

Apr 10, 2026

Rating: 5/5

Custom Size Worked Great

Ordered a non-standard 19.5mm bore. Support team was helpful and the part fits perfectly.

A

Anonymous

Mar 29, 2026

Rating: 5/5

Durable and Reliable

Exactly what I needed for industrial machinery repair. Hardness is consistent across the batch.

A

Anonymous

Mar 22, 2026

Rating: 5/5

High Quality Steel

Used these in a high-vibration assembly. No wear detected after several weeks of continuous operation.

A

Anonymous

Mar 04, 2026

Rating: 5/5

Perfect Fit for Lathe Project

The precision on these bushings is outstanding. Measured exactly 20mm as stated. Very happy with the hardness.

A

Anonymous

Jan 26, 2026

Rating: 4/5

Good but Shipping Slow

The product itself is excellent quality, but shipping took longer than expected for standard sizes.

5 FAQ

Q: Do these bushings require lubrication before installation?

A: Yes, we recommend applying standard bearing grease during installation for optimal performance.

Q: Do you provide material certificates?

A: Yes, material certification documents are available upon request at the time of purchase.

Q: What is the lead time for custom orders?

A: Standard sizes ship in 2 days. Custom sizes typically take 7-10 business days to manufacture.

Q: Are these resistant to corrosion?

A: They are made of bearing steel. Please apply oil for storage to prevent rust in humid environments.

Q: Can I order a 17.5mm bore size?

A: Yes, we offer custom non-standard sizes. Please contact us directly with your specifications.

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