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Your advantages

Low rotational clearance
guaranteed over the entire gearbox service life thanks to the high torsional stiffness of the gearing geometry.

Large transmission ratio range
thanks to a helical gear input gear stage combined with a hypoid output stage.

Perfect combination
thanks to the B5 mounting flange, which always optimally integrates the drive unit into your respective application.

Servo planetary gear units PS.C / PS.F series K series bevel gearboxes

Low-backlash helical-bevel servo gear units from the BS.F series - versatile and compact!

Our BS.F low-backlash helical-bevel servo gear units impress with their variety and compactness! They are available in six sizes and five output variants and offer you countless possibilities.

Even the standard versions of the BS.F helical-bevel servo gear units guarantee low rotational clearance. The rotational clearance can be further reduced as an option. Thanks to the wear-free operating behaviour and the fatigue-resistant design of the running gearing, the rotational clearances remain constantly low over the entire service life of the servo gear unit.

In addition to the technical properties, the numerous motor mounting options via the EBH motor adapter underline the outstanding versatility.

The helical-bevel servo gear units are designed for nominal torques from 40 Nm to 1220 Nm. The permitted acceleration torques are significantly higher than these values. The high permissible overhung loads are also impressive, which, depending on the size and transmission ratio, range between 2,600 N and 36 000 N depending on the size and transmission ratio.

Only half the solution without a motor? Then use our modular system and combine the servo gear units of the BS.F series with a dynamic servomotor of your choice.
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Surface and corrosion protection
  • Low backlash helical-bevel servo gear unit
  • Designed for nominal torques from 40 Nm to 1220 Nm
  • All variants with B5 mounting flange, optionally with foot and end face mounting option or torque arm (can be optimally integrated into the respective application)
  • High overhung loads between 2 600 N and 36 000 N can be integrated
  • Rotational clearance remains constant over the entire service life of the gearbox
  • Simple (third-party) motor attachment via EBH motor adapter
  • Five output variants available as standard (others on request):
    • BSF: Full wave
    • BSKF: Full wave with key
    • BSBF: Flange block shaft (EN ISO 9409)
    • BSHF: Hollow shaft with shrink disk
    • BSAF: Hollow shaft with key (slip-on gearbox)

Helical-bevel servo gear unit BS.F series
Size Torque class Nm Shear force range N Gear ratio i Rotational clearance `
202 40 2.680 - 4.200 3 / 4 / 6 / 8 / 10 / 15 / 20 / 25 6 1) / 3 2)














302 80 4.620 - 6.000 3 / 4 / 6 / 8 / 10 / 15 / 20 / 25 / 30
402 160 6.600 - 10.800 3 / 4 / 6 / 8 / 10 / 15 / 20 / 25 / 30
502 320 10.500 - 14.400 3 / 4 / 6 / 8 / 10 / 12 / 15 / 20 / 25 / 30 / 35
602 640 15.900 - 24.000 3 / 4 / 6 / 8 / 10 / 12 / 15 / 20 / 25 / 30 / 35 / 40
802 1220 30.700 - 36.000 4 / 6 / 8 / 10 / 12 / 15 / 20 / 25 / 30 / 35 / 40

1) Standard

2) Reduced
  • Load handling attachments in storage/retrieval systems
  • Handling gantries
  • Cycle feeds
  • Tyres, rubber and plastic machines
  • Conveyor belts
  • Travelling axles, additional axles
  • Cutting, punching, welding and stamping of foils, wood or plastic