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FAM® bushings

FAM® bushings are manufactured from manganese steel, which provides excellent resistance to abrasive wear thanks to a mechanical work hardening of the contact area. Only an initial greasing is required.

FAM® bushings have internal cross hatched topography making the surface harder and helping removing abrasive particles.

FAM® L or MANGACHOC bushing have smooth internal diameter. They are mainly used for their high resistance to abrasion and high contact pressure in shock working conditions, with no maintenance.
MANGACHOC technology is also available on spherical plain bearing in case of angular misalignment or flexion in the joint.

See more detail about spherical plain bearing.

  Dyn. Load (N/mm²) Max Speed (m/s) Max Temp (°C) Abrasion resistance Shocks resistance Corrosion resistance Low-Maintenance
FAM® 50 0,5 380°C ++++ +++ + +++
FAM®L /Mangachoc® 50 0,5 380°C +++ +++ + ++

Downloads / Resources

Mating Shaft:

Shafts hardened for 56 to 60 Hrc are recommended.
For optimal performances of the joints, special shafts are available from HEF DUFERRIT: FAM® ST, FAM® HT, FAM® OX.


No maintenance
High resistance to abrasion
High resistance to shocks


Steel industry
Cement industry
Mining industry
Handling / Attachment