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

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.

Explore your interests

View More
All Categories
Best Seller (30)
New List (30)
Traditional Wooden Rattle with Sheepskin Head for Early Education Newborns Boys and Girls Visual Tracking Grip and Hearing Training

Traditional Wooden Rattle with Sheepskin Head for Early Education Newborns Boys and Girls Visual Tracking Grip and Hearing Training

$11.88

French Canson Classic Printmaking Paper 100% Cotton 320g for Screen Printing, Woodcut, Copperplate, Lithography; 250g Cotton Pulp 60*76cm Half Sheet 8K Quarter Sheet A4 Printmaking Painting Tool Set Ink Roll Rubbing Paper

French Canson Classic Printmaking Paper 100% Cotton 320g for Screen Printing, Woodcut, Copperplate, Lithography; 250g Cotton Pulp 60*76cm Half Sheet 8K Quarter Sheet A4 Printmaking Painting Tool Set Ink Roll Rubbing Paper

$7.65

Fan Start Capacitor 8uF for ABB ACS800 VFD

Fan Start Capacitor 8uF for ABB ACS800 VFD

$350.00

babycare Baby Rattle with Teether for Newborns, Silicone Shaker Bell Educational Toy for Infants and Toddlers

babycare Baby Rattle with Teether for Newborns, Silicone Shaker Bell Educational Toy for Infants and Toddlers

$39.90

Class 100 Clean Workbench and Laminar Flow Hood, Negative Pressure Weighing Booth, Direct from Manufacturer

Class 100 Clean Workbench and Laminar Flow Hood, Negative Pressure Weighing Booth, Direct from Manufacturer

$2,475.00

1.9m 4-Printhead Digital Sublimation Printer for Diatom Mud, Polyester Fabric, and Garment Heat Transfer Printing

1.9m 4-Printhead Digital Sublimation Printer for Diatom Mud, Polyester Fabric, and Garment Heat Transfer Printing

$600.00

ergo5950 Acrylic Specialty Adhesive - High-Strength Bond for Acrylic Sheets, PMMA, Glass, Fish Tanks, PLA, and PC Boards

ergo5950 Acrylic Specialty Adhesive - High-Strength Bond for Acrylic Sheets, PMMA, Glass, Fish Tanks, PLA, and PC Boards

$57.84

Invisalign Orthodontic Retainer Storage Box - Compact Portable Cleaning Case for Teeth Aligners and Dentures

Invisalign Orthodontic Retainer Storage Box - Compact Portable Cleaning Case for Teeth Aligners and Dentures

$12.30

[Camizong] Lilith's Claw – Gothic-Style Fork Acrylic Check-In Stick for Badge Display with Magnetic Backing

[Camizong] Lilith's Claw – Gothic-Style Fork Acrylic Check-In Stick for Badge Display with Magnetic Backing

$11.70

PELICAN 1010 Outdoor Waterproof Micro Case for Earphones and Cable Storage

PELICAN 1010 Outdoor Waterproof Micro Case for Earphones and Cable Storage

$25.00

Korea Hwahong Model 345 Detail Liner Brush for Painting - Recommended by Xijiu 011

Korea Hwahong Model 345 Detail Liner Brush for Painting - Recommended by Xijiu 011

$12.52

Stainless Steel Oil Painting Medium Dispenser and Brush Washer Cup for Students, Diluent and Watercolor Paint Supplies

Stainless Steel Oil Painting Medium Dispenser and Brush Washer Cup for Students, Diluent and Watercolor Paint Supplies

$3.80

[Cao Quan Stele Beginner Set] Beginner Clerical Script Learning Set

[Cao Quan Stele Beginner Set] Beginner Clerical Script Learning Set

$41.60

Manyue Car Aromatherapy Hand-Mold Plaster DIY Raw Material Scented Diffuser Stone White Hard Plaster Powder 500G

Manyue Car Aromatherapy Hand-Mold Plaster DIY Raw Material Scented Diffuser Stone White Hard Plaster Powder 500G

$5.95

Pelican Soft Grid Dividers for Case 1510 - Compatible with 1500, 1550, and 1610 Models

Pelican Soft Grid Dividers for Case 1510 - Compatible with 1500, 1550, and 1610 Models

$170.00

Children's Orthodontic Expander Storage Case, Portable Retainer Box with Lanyard for Frankel Appliances

Children's Orthodontic Expander Storage Case, Portable Retainer Box with Lanyard for Frankel Appliances

$14.33

Portable Denture Storage Case for Elderly - Cleaning and Soaking Box for False Teeth and Retainers

Portable Denture Storage Case for Elderly - Cleaning and Soaking Box for False Teeth and Retainers

$19.30

Handmade Soap Wrought Iron Hanging Rack, DIY Grape/Lychee Soap Display Hook, Premium Creative Gift Decor

Handmade Soap Wrought Iron Hanging Rack, DIY Grape/Lychee Soap Display Hook, Premium Creative Gift Decor

$4.08

Stainless Steel Parallel Brush Roller Washer - Sand Removal Equipment for Oysters and Vegetable Cleaning

Stainless Steel Parallel Brush Roller Washer - Sand Removal Equipment for Oysters and Vegetable Cleaning

$8,175.00

Camellia Scented Plaster DIY Kit Parent-Child Team Building Car Vent Diffuser Ornament with Tutorial Included

Camellia Scented Plaster DIY Kit Parent-Child Team Building Car Vent Diffuser Ornament with Tutorial Included

$3.23

Glass Bonding High-Transparency Waterproof UV Adhesive Shadowless Glue 7194V for Small Glass Fish Tanks & Vases

Glass Bonding High-Transparency Waterproof UV Adhesive Shadowless Glue 7194V for Small Glass Fish Tanks & Vases

$105.00

Mineral Water Bucket Stand - Simple Storage Rack for Bottled Water, Water Dispenser, and Purified Water Support

Mineral Water Bucket Stand - Simple Storage Rack for Bottled Water, Water Dispenser, and Purified Water Support

$150.00

UE5 Neon Shop Signs - 3D Model Assets and Props for Unreal Engine 5

UE5 Neon Shop Signs - 3D Model Assets and Props for Unreal Engine 5

$0.50

Surface-Mounted Semi-Circular Stainless Steel Floor Cable Raceway with Anti-Crush Design

Surface-Mounted Semi-Circular Stainless Steel Floor Cable Raceway with Anti-Crush Design

$2.50

Denture Storage Box Soaking Denture Elderly Cleaning Box with Filter Tooth Storage Box Retainer Denture Case Portable

Denture Storage Box Soaking Denture Elderly Cleaning Box with Filter Tooth Storage Box Retainer Denture Case Portable

$7.64

Tire Hot Patch Vulcanizer 12R22.5, Tubeless Tire Aluminum Mold Plug-in Top Pressure Plate, Tire Repair Tool Aluminum Mold Press Plate

Tire Hot Patch Vulcanizer 12R22.5, Tubeless Tire Aluminum Mold Plug-in Top Pressure Plate, Tire Repair Tool Aluminum Mold Press Plate

$430.00

DEUTER Germany Outdoor Travel Waterproof Dry Bag - Lightweight Storage Sack for Beach, Swimming, and Camping

DEUTER Germany Outdoor Travel Waterproof Dry Bag - Lightweight Storage Sack for Beach, Swimming, and Camping

$59.50

Expanded Clay Pebbles for Plant Pot Drainage - Specialty Ceramic Granules for Succulents, Hydroponics, Aquariums, and Bathroom Backfill

Expanded Clay Pebbles for Plant Pot Drainage - Specialty Ceramic Granules for Succulents, Hydroponics, Aquariums, and Bathroom Backfill

$7.70

Lint-Free Industrial Wiping Paper for Camera and Automotive Paint, Oil-Removing Cloth for Spray Painting, Film Application, Anti-Fog Wax, and Static Rust Prevention

Lint-Free Industrial Wiping Paper for Camera and Automotive Paint, Oil-Removing Cloth for Spray Painting, Film Application, Anti-Fog Wax, and Static Rust Prevention

$126.50

Heavy-Duty Electric Bike Hook - Versatile Hanging Solution for Strollers, Shopping Bags, Kids' Carts, and Food Delivery

Heavy-Duty Electric Bike Hook - Versatile Hanging Solution for Strollers, Shopping Bags, Kids' Carts, and Food Delivery

$1.90