JDB-20 Tin Bronze Graphite Bearing with 50 MPa Load Capacity and 400°C Temperature Rating for Industrial Applications

Price Negotiable

Price: Negotiable

MOQ: Negotiable

Delivery Time: 30 days

Brand: Joyreap

Product Description

Product Overview

JDB-20 solid lubricated bronze bearings are manufactured from tin bronze alloy base material with embedded graphite plugs, providing exceptional self-lubricating performance without requiring external oil or grease.

Material Composition

Base Material: CuSn5Pb5Zn5 with Graphite Inclusions

Element	Minimum %	Maximum %
Copper (Cu)	83.00	87.00
Lead (Pb)	4.00	6.00
Tin (Sn)	4.00	6.00
Zinc (Zn)	4.00	6.00
Iron (Fe)	2.00	0.30
Nickel (Ni)	0.00	2.00

Key Characteristics

Optimized for low to medium loads and moderate velocity operations
Excellent performance in high temperature environments up to 400°C
Superior resistance to chemical corrosion and environmental degradation
Completely maintenance-free operation with embedded solid lubrication

Technical Specifications

Density	8.9 g/cm³
HB Hardness	≥70
Tensile Strength	≥250 MPa
Yield Strength	≥90 MPa
Elongation	≥13%
Max Operating Temperature	-40 to +400°C
Max Load Capacity	50 MPa
Max Speed (Dry)	0.5 m/s
Max Speed (Lubricated)	2.5 m/s
Max PV Value (Dry)	1 N/mm²·m/s
Max PV Value (Lubricated)	1.65 N/mm²·m/s

Product Availability

Standard configurations: cylindrical bushings, flanged bearings, thrust washers, and slide plates
Custom designs and material specifications available upon request
Alternative materials include CuZn5Sn5Pb5, CuSn10Pb10, and CuSn12

Industrial Applications

Widely implemented in fireplace doors, baking furnace conveyor systems, rubber processing machinery, light industrial equipment, machine tool manufacturing, and various mechanical applications requiring reliable, maintenance-free bearing solutions.

International Material Standards

This product corresponds to multiple international standards including: