Screw drives
Bosch Rexroth linear motion
Bosch Rexroth screw drive components include axial bearing units, springs and further accessories for ball screw and lead screw drives. The range covers axial bearing groups in the LGF, LGL and LGN series across a wide range of dimensions, as well as spring elements for screw spindle preloading. These components provide the structural support of the screw spindle at the fixed and floating bearing end, and are decisive for the axial stiffness and positioning accuracy of linear drives.
| Series | Type | Size range (examples) | Part example |
|---|---|---|---|
| LGF-B | Flange bearing B | 12x55, 17x62, 20x68, 30x80, 35x90, 40x115 | R341400906 / R341402806 |
| LGF-C | Flange bearing C | 25x75, 30x80 | R341401506 / R341402706 |
| LGF-A | Flange bearing A | 50x140 | R341402906 |
| LGL-A | Long form A | 12x44, 15x47, 20x60 | R341404006 / R341404206 |
| LGL-D | Long form D | 06x24 | R341403806 |
| LGN-A | Normal form A | 40x90, 50x110 | R341402406 / R341402506 |
| LGN-B | Normal form B | 06x24, 10x34, 12x42, 17x47, 20x52, 30x62, 35x72 | R341400206 / R341402206 |
| LGN-C | Normal form C | 25x57, 30x62 | R341401406 / R341402306 |
Typical applications: Axial support of ball screws in CNC machine tools and machining centres, bearing of feed spindles in plastics and metal processing machines, spare-part supply for existing screw drive installations, and new-build linear axes in special-purpose machines and handling automation.
