Load factors for bearing selection

Except for Standard series KD 210, types 13 and 21.

Application fstat fL Service Time in
Full Load Revolutions
Floating Crane (Cargo)
Mobile Crane (Cargo)
Ship Deck Crane (Grab)
Welding Positioner
Turntable (Permanent Rotation)
1.10 1.00 30,000
Tower
Crane
Bearing
at
top
Mkrü ≤ 0.5 Mk 1.25 1.00 30,000
0,5 Mk ≤ Mkrü ≤ 0.8 Mk 1.15 45,000
Mkrü ≥ 0.8 Mk 1.25 60,000
Bearing at base 1.00 30,000
Slewing Crane (Cargo)
Shipyard Crane
Rotatable Trolley (Cargo)
Shiploader / Ship unloader
1.15 45,000
Steel Mill Crane 1.45 1.50 100,000
Mobile Crane (Grab or heavy handling service)
Slewing Crane (Grab/Magnet)
Rotatable Trolley (Grab/Magnet)
Bridge Crane (Grab/Magnet)
Floating Crane (Grab/Magnet)
1.70 150,000
Main slewing gear of Bucket Wheel Excavator
Reclaimer
Stacker
Boom Conveyor
2.15 300,000
Offshore Crane subject to special criteria
Railway Crane 1.10 For these applications please mind the accompanying note.
Deck Crane (Cargo) 1.00
Stacker
Boom Conveyor
Conveyor Waggon
1.10
Cable Excavator/Dragline
Swing Shovel
1.25
Hydraulic Excavator up to 1.5m³ 1.45
exceeding 1.5m³ subject to special criteria
Ladle Car 1.75