Planetary servo gear units: PS.F

PSF/PSKF series
The low-backlash planetary servo gear units PSF/PSKF from SEW-EURODRIVE in single stage and two stage design are very compact and allow for highest torques and overhung loads. They are available in 8 sizes (6 sizes for PSBF flange block gear units) with high torsional rigidity covering a torque range of 25 to 3000 Nm and have a maximum acceleration torque of up to 4200 Nm.

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Product features

• High efficiency levels
  –  Ground external gearing components
  –  Optimized tooth geometry
• High permitted torques
  –  Wide gearing components
  –  Large shaft diameter
  –  Positively connected drive elements
• High permitted overhung loads
  –  Taper roller bearings
  –  Large shaft diameter
  –  Large bearing distances
• Constantly low circumferential backlash
  –  Wear-free gearing
  –  Precise gearing
  –  Careful assembly

• Low operating temperatures
  –  Small sealing diameters
  –  Optimized gearing
• Finely stepped ratios up to 100:1
  –  Two-stage gear unit with preliminary
      stage of next smaller size
  –  Special ratios on request
• Reliable and long-lived
  –  Use of:
      ·  High-quality anti-friction bearings
      ·  Reliable seals
      ·  Synthetic lubricants
• High torsional rigidity
  –  Optimized planet carrier
  –  Large output shaft diameter
  –  FE optimized housing

Options

• Food grade lubricant (Klübersynth UH1 6-460)
• Surface protection OS1 to OS4
• Neutral nameplate
• Mounting position M0 (oil fill quantity)
• Gear ratios i=6 & i=8 (2ⁿ gear ratios possible)
• Toothed output shaft according to DIN 5480 for PSF (on request)
• Stainless steel output shaft for PSF (on request)

Overview of sizes – PS(K)F

Overview of sizes – PSBF