Bimetal Bushings

To calculate the parameters for a bimetallic bush (also known as a bimetallic bearing), you need to consider the following key dimensions and specifications:

Inner Diameter (ID): This is the diameter of the shaft that will rotate inside the bush.

Outer Diameter (OD): This is the diameter of the housing bore where the bush will be installed.

Housing Bore: The diameter of the hole in the housing where the bush will be pressed or fitted.

Shaft Diameter: The diameter of the shaft that will fit inside the bush.

Flange Thickness: If the bush has a flange, this is the thickness of the flange.

Steps to Calculate Bimetallic Bush Parameters:
Determine Shaft Diameter (ID):

Measure the diameter of the shaft that will rotate inside the bush.

This will be the Inner Diameter (ID) of the bush.

Determine Housing Bore (OD):

Measure the diameter of the housing bore where the bush will be installed.

This will be the Outer Diameter (OD) of the bush.

Calculate Wall Thickness:

The wall thickness of the bush can be calculated as:

Wall Thickness
=
OD
−
ID
2
Wall Thickness=
2
OD−ID
​

Flange Thickness:

If the bush has a flange, measure the thickness of the flange. This is typically specified by the application or design requirements.

Material Specifications:

Bimetallic bushes are typically made of two layers: a steel backing and a bearing material (e.g., bronze, Babbitt, or other alloys). Ensure the material specifications meet the application requirements.

Tolerances:

Consider the tolerances for the ID, OD, and other dimensions based on the application requirements (e.g., press fit, sliding fit).

Unit Conversion (Imperial to Metric or vice versa):

If needed, convert dimensions between imperial (inches) and metric (millimeters) units.

1
inch
=
25.4
mm
1 inch=25.4 mm
Example Calculation:
Shaft Diameter (ID): 1.5 inches

Housing Bore (OD): 2 inches

Flange Thickness: 0.25 inches

Wall Thickness:

Wall Thickness
=
2
−
1.5
2
=
0.25
inches
Wall Thickness=
2
2−1.5
​
=0.25 inches
Flange Thickness: 0.25 inches (as given)

Material: Steel-backed bronze bush

Tolerances: ±0.001 inches for ID and OD

Conversion to Metric:
Shaft Diameter (ID): 1.5 inches × 25.4 = 38.1 mm

Housing Bore (OD): 2 inches × 25.4 = 50.8 mm

Flange Thickness: 0.25 inches × 25.4 = 6.35 mm

Summary:
Inner Diameter (ID): 1.5 inches (38.1 mm)

Outer Diameter (OD): 2 inches (50.8 mm)

Wall Thickness: 0.25 inches (6.35 mm)

Flange Thickness: 0.25 inches (6.35 mm)

This is a basic guide to calculating bimetallic bush parameters. Always refer to specific design requirements and manufacturer guidelines for precise calculations and material selection.

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Request Quote Bearing Parameters Use calculator for estimates only. Accuracy is neither represented nor warranted. Actual results may differ.
Imperial Metric Material: Bearing ID Max: ID Min: (in) Bearing OD Max: OD Min: (in) Housing B Flange Thickness:

Overview

Steel backing with CuPb24Sn4
liner, with good fatigue strength
and sliding performance. Primarily
applied to fully lubricated connecting
rod or main bushings in engines and
compressors. Load capacity is 5500 psi, speed up to 1800
fpm. Hardness: HB45-70, Temp: -40 to +400
of friction: 0.06-0.16

Characteristics

— Lead-free
— Machinable
— Design freedom – customizable to meet specific
indentation and shape needs
— Capable of supporting high specific loads and
high temperatures
— Excellent fatigue strength under dynamic and
shock load conditions
— Suitable for oil and grease lubrication
— Suitable for hydrodynamic operation
— Excellent wear resistance
— Superior performance under oscillating movement
— Thin-wall construction permits compact
bearing assembly
— Indents in the bearing surface provide
a reservoir for grease and thus allow
extended re-greasing intervals

Bimetal Sleeve Bushes Designed For Heavy-Duty Applications And Equipment

Industrial

Automotive — Transmissions — King pin bushes — Truck brake caliper bushes
— Agricultural machinery
— Earth-movers
— Textile machinery
— Pneumatic equipment
— Mechanical handling
and lifting equipment
— Hydraulic cylinders
— Off-highway equipment

Bimetallic bearings, lead-free bearings, notches, grease,By partnering with you early in the design process,
the China sliding bearing engineering team is able to review your assemblies and make sure both the bearing
and surrounding components are optimized for performance and cost-effectiveness.

Similar or Equivalent Specification BUSHING SIZES MADE TO ORDER
d = bearing/thrust washer ID
D = thrust washer OD
L = bearing/slide pad length
W = slide pad width
S = bearing/slide pad stroke
Dimensions in inches (millimeters)