DJA MOND Case-hardened bushings
BAC.. Series
- Case-hardening treatment: HRC 58–62
- Tough core
- Relubrication intervals up to 550 hours
Case-hardened bushings are made from case-hardened and quenched steel. The combined case hardening, quenching and tempering treatments provide a high surface hardness (HRC 58–62), while maintaining a tough core capable of absorbing shocks and mechanical loads. DJA MOND BAC case-hardened bushings are designed for demanding applications requiring excellent wear resistance, high load capacity and long operating life, even in harsh working conditions.
BAC steel bushings are subjected to case hardening, quenching and tempering processes, achieving a case depth of 0.8–1 mm and a final hardness of HRC 58–62 after finish grinding. This dedicated manufacturing process provides excellent wear and seizure resistance, ensuring reliable and precise operation even under the most demanding industrial conditions. Compared with other relubricable bushings (POM multilayer, bronze wrapped or bimetallic solutions), case-hardened bushings are the ideal choice where maximum wear and seizure resistance, combined with a tough shock-resistant core, are required.
The construction tolerances are u6 for the outer diameter and C8 for the inner diameter. The relubrication interval can reach up to 550 hours after the first greasing, depending on operating conditions and the application environment.
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Specifications
Technical specifications
Final hardness
HRC 58–62 (after finish grinding of the finished component)
Relubrication interval
Up to 550 hours after initial greasing, depending on operating conditions and the application environment.
Outer Ø tolerance
u6
Inner Ø tolerance
C8
Case-hardening depth
0.8–1 mm
Performances
Design and performance features
HRC 58–62 after finish grinding
Each BAC case-hardened bushing is made from quenched steel. The HRC 58–62 hardness is achieved through case hardening (case depth 0.8–1 mm), quenching and tempering processes, while the tough core provides excellent shock absorption and resistance to mechanical stresses. These hardened bushings maintain high operating precision and dimensional stability throughout their service life.
Excellent resistance to wear and seizure
The manufacturing process ensures reliability, precise operation and long-term operational continuity, even in the most demanding industrial applications.
Reduced surface roughness
The reduced surface roughness achieved after machining contributes to lowering the friction coefficient, improving sliding efficiency and smooth running performance.
Maintenance
Following initial greasing, BAC case-hardened bushings provide relubrication intervals of up to 550 hours, depending on the operating conditions.
Mounting
Mounting of case-hardened bushings
The bushing must be installed with an interference fit in the housing, according to the manufacturing tolerances of outer diameter u6 and inner diameter C8 achieved through the case hardening, quenching and finish grinding processes.
Mounting methods
- Press-fit assemblyThe bushing is press-fitted into the housing, in accordance with the specified dimensional tolerances of Ø external u6 and Ø internal C8, achieved through the carburizing, hardening and grinding process of the finished component.
Technical data
- Outer Ø
- u6
- Inner Ø
- C8
- Surface hardness
- HRC 58–62 after finish grinding
Applications
Applications
Components and application support for every industrial environment.
Industrial automation
Material handling and automation systems where high wear and seizure resistance is required, with relubrication intervals of up to 550 hours.
Transmissions and axles
The tough core achieved through case hardening provides excellent shock absorption and resistance to mechanical stresses, while maintaining operating precision throughout the service life of the bushing.
Metal Fabrication / Machining Industry
Heavy-duty industrial machinery where high surface hardness is required, with custom solutions available for specific industry needs.
Agriculture
Reliable components for heavy loads, dirt, moisture and reduced maintenance in agricultural machinery.
Construction Equipment
Components designed to withstand impacts, dust, shock loads and harsh environments in construction machinery.
Hydraulic and pneumatic cylinders
Bushings, spherical plain bearings and seals for precise guidance of rods and joints, even under load.
Renewable Energy
Bearings and motion systems for wind power, solar installations and long-lasting energy technologies.Contacts
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