Steel Bushing Supplier Guide for Excavator and Loader Parts Buyers

steel bushings are widely used in excavators, loaders, and other engineering machinery where pins and moving joints work under heavy load, impact, dust, and repeated movement. A reliable bushing helps protect the structure around the pivot point and supports stable machine operation.

For B2B buyers, the most important purchasing details are material, inner diameter, outer diameter, length, tolerance, hardness, heat treatment, quantity, and drawing requirements. If the bushing is used together with a bucket pin or shaft, the buyer should provide both the pin and bushing dimensions so the supplier can check fit and clearance.

JINYO lists common steel bushing materials including 45#, 40Cr, and 42CrMo. The listed hardness range is 50 to 58 HRC, and heat treatment options include induction hardened and quenched and tempered. These details are important for wear resistance and service life in construction machinery applications.

When comparing suppliers, buyers should not only ask for unit price. They should confirm tolerance, heat treatment, inspection support, packaging method, and whether the supplier can produce according to drawings. JINYO lists ID tolerance of +0.2 to +0.3 and OD tolerance of +0.08 to +0.13, with wooden box packaging and custom OD, ID, length, and drawing support.

Product Specification Section

Product: Steel Bushing

Common materials: 45#, 40Cr, 42CrMo

Tolerance: ID +0.2 to +0.3; OD +0.08 to +0.13

Hardness: 50 to 58 HRC

Heat treatment: Induction hardened; quenched and tempered

Applications: Excavator, loader, engineering machinery

Packaging: Wooden box

MOQ: 10 pcs

Lead time: About 30 days

Customization: OD, ID, length, and drawings

Quality inspection: Available

Certificate / standard: ISO

Product page: https://www.jinyoindustry.com/steel-bushing/

Applications

Steel bushings are used in excavator and loader linkage systems, bucket positions, boom and arm joints, construction machinery repair parts, and other heavy-duty pivot structures. They are often purchased together with pins or shafts for matched assembly.

Buying Tips / Supplier Selection Checklist

Provide drawings whenever possible. Drawings help confirm ID, OD, length, chamfer, groove, and tolerance details.

Match the bushing with the pin. The pin diameter, hardness, surface condition, and working clearance should be considered together.

Confirm heat treatment. Induction hardening and quenching and tempering affect wear resistance and service life.

Check MOQ and packaging. JINYO lists 10 pcs MOQ and wooden box packaging for steel bushings.

Ask for inspection support before ordering. For replacement parts and OEM projects, dimensional inspection helps reduce assembly risk.