Contact
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PSF series
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The low backlash PSF planetary servo gear units are designed for the 25 to 3,000 Nm torque classes. The permitted acceleration
torques are significantly higher than these values.
Three output versions are available:
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Technical data
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Type
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Size
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Torque class
[Nm]
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Gear ratios
1
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Circumferential backlash
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1-stage
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2-stage
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1-stage [i]
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2-stage [i]
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1-stage [i]
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2-stage [i]
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PSF
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121
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122
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25
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3 / 4 / 5 / 7 / 102
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15 / 16 / 20 / 25 / 28 / 35 / 40 / 49 / 70 / 1003
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8 / 4 / 2
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10 / 6 / 3
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PSF/PSBF
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221
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222
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55
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6 / 3 / 1456
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8/4/2
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PSF/PSBF
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321
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322
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110
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PSF/PSBF
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521
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522
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300
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PSF/PSBF
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621
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622
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600
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4 / 5 / 7 / 10
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4 / 2 / 1
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6 / 3 / 1
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PSF/PSBF
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721
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722
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1,000
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PSF/PSBF
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821
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822
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1750
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PSF
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921
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922
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3,000
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1) Further gear ratios on request
2) Only PSF 3) Only PSBF 320/520, further gear ratios on request 4) Standard 5) Reduced 6) Minimized |
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PSC series
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The low backlash PSC planetary servo gear units are designed for the 30 to 320 Nm torque classes. They were designed to combine
the greatest possible flexibility and cost-efficiency because not every application requires high-performance components.
They provide a basis for diverse, dynamic and cost-optimized drive solutions.
The PSC planetary servo gear units are available in the following versions:
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Technical data
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Size
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Torque class
[Nm]
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Gear ratios
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1-stage
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2-stage
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1-stage [i]1
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2-stage [i]2
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221
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222
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30
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3 / 5 / 7 / 10
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15 / 21 / 25 / 30 / 35 / 49 / 50 / 70 / 100
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321
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322
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65
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521
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522
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160
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621
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622
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320
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5 / 7 / 10
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25 / 35 / 49 / 50 / 70 / 100
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1) Max. circumferential backlash: 10’ for all versions
2) Max. Circumferential backlash: 15’ for all versions |
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BSF series
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The low backlash BSF helical-bevel servo gear units are designed for the 40 to 1,500 Nm torque classes. The permitted acceleration
torques are significantly higher than these values.
These right-angle servo gear units are available in five output versions:
All versions are equipped with a B5 mounting flange and optional foot mounting and torque arm. Because of this, these drive
units can be optimally integrated into existing applications. The combination of a helical input stage and a hypoid output
stage results in ratio ranges which can be covered by the single-stage bevel (wheel) and hypoid gear unit or by the single-stage
helical-worm gear unit with high transmission quality. The circumferential backlash remains constantly low throughout the
gear unit’s service life.
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Technical data
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Size
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Torque class
[Nm]
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Gear ratios
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Circumferential backlash [’]
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202
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40
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3 / 4 / 6 / 8 / 10 / 15 / 20 / 25
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6 / 312
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302
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80
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3 / 4 / 6 / 8 / 10 / 15 / 20 / 25 / 30
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402
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160
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502
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320
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3 / 4 / 6 / 8 / 10 / 12 / 15 / 20 / 25 / 30 / 35
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602
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640
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3 / 4 / 6 / 8 / 10 / 12 / 15 / 20 / 25 / 30 / 35 / 40
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802
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1,500
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1) Standard
2) Reduced |
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Options for servo gear units and servo gearmotors
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Direct motor mounting
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Positive direct mounting of CMP, CM and DS SEW servomotors without terminal adapter
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Motor adapter
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EPH motor adapter for PS.F and PS.C planetary servo gear units, ECH motor adapter for PS.C planetary servo gear units and
EBH motor adapter for BS.F helical-bevel servo gear units.
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Reduced backlash
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Optional for PS.F planetary servo gear units and BS.F helical-bevel servo gear units with a significantly lower circumferential
backlash
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Minimized circumferential backlash
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Optional for planetary servo gear units with significantly reduced circumferential backlash once more
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