The highest level of precision, torque and
overhung load: Low backlash planetary and helical-bevel servo gear
units
overhung load: Low backlash planetary and helical-bevel servo gear
units
Your advantages
- Compact, lightweight design
- Highest permitted torques and overhung loads
- High efficiency levels
- Highest level of reliability, availability and durability
- Adaptor is eliminated, which cuts costs
Planetary servo gear units
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PSC series |
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The
low backlash PSC planetary servo gear units are designed for the 30 to 350 Nm (265 to 3100 lb-in) 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 |
Torque class
[Nm] (lb-in) |
Reduction ratios |
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1-stage [i]1 |
2-stage [i]2 |
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220 |
30 (265) |
3 / 5 / 7 / 10 |
15 / 21 / 25 / 30 / 35 / 49 / 50 / 70 / 100 |
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320 |
65 (575) |
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520 |
160 (1410) |
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620 |
320 (2830) |
5 / 7 / 10 |
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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PSF series |
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The
low backlash PSF planetary servo gear units are designed for the 25 to 3000 Nm (220 to 26500 lb-in) 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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|---|---|---|---|---|---|---|
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Type |
Size |
Torque class
[Nm] (lb-in) |
Reduction ratios1 |
Circumferential backlash |
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|
1-stage [i] |
2-stage [i] |
1-stage [i] |
2-stage [i] |
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PSF |
120 |
25 (220) |
3 / 4 / 5 / 7 / 102 |
15 / 16 / 20 / 25 / 28 / 35 / 40 / 49 / 70 / 1003 |
8 / 4 / 2 |
10 / 6 / 3 |
|
PSF / PSBF |
220 |
55 (485) |
6 / 3 / 1456 |
8 / 4 / 2 |
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PSF / PSBF |
320 |
110 (970) |
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PSF / PSBF |
520 |
300 (2660) |
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PSF / PSBF |
620 |
600 (5310) |
4 / 2 / 1 |
6 / 3 / 1 |
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PSF / PSBF |
720 |
1000 (8850) |
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PSF / PSBF |
820 |
1750 (15400) |
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PSF |
920 |
3000 (26500) |
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1) Further
reduction ratios on request 2) Only PSF 3) Only PSBF 320/520, further reduction ratios on request 4) Standard 5) Reduced 6) Minimized |
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Helical-bevel servo gear
units
units
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BSF series |
|
The
low backlash BSF helical-bevel servo gear units are designed for the 40 to 1500 Nm (350 to 13200 lb-in) 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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|---|---|---|---|
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Size |
Torque class
[Nm] (lb-in) |
Reduction ratios |
Circumferential backlash [’] |
|
2-stage [i] |
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|
202 |
40 (350) |
3 / 4 / 6 / 8 / 10 / 15 / 20 / 25 |
6 / 312 |
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302 |
80 (705) |
3 / 4 / 6 / 8 / 10 / 15 / 20 / 25 / 30 |
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402 |
160 (1410) |
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502 |
320 (2830) |
3 / 4 / 6 / 8 / 10 / 12 / 15 / 20 / 25 / 30 / 35 |
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602 |
640 (5660) |
3 / 4 / 6 / 8 / 10 / 12 / 15 / 20 / 25 / 30 / 35 / 40 |
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802 |
1500 (13200) |
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1) Standard
2) Reduced |
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Motor adapter
The EPH motor adaptor for planetary servo
gear units and EBH motor adaptor for helical-bevel gear units can
be used to connect all commercial servomotors in a simple and time-efficient
manner to servo gear units from SEW-EURODRIVE.
gear units and EBH motor adaptor for helical-bevel gear units can
be used to connect all commercial servomotors in a simple and time-efficient
manner to servo gear units from SEW-EURODRIVE.
Reduced backlash
Optional for planetary servo gear units and
helical-bevel servo gear units. The circumferential backlash of
these gear units is considerably less than that of the standard
versions so that positioning tasks can be solved with great precision.
The circumferential backlash is specified in angular minutes [ ‘]
in the technical data.
helical-bevel servo gear units. The circumferential backlash of
these gear units is considerably less than that of the standard
versions so that positioning tasks can be solved with great precision.
The circumferential backlash is specified in angular minutes [ ‘]
in the technical data.
Minimized circumferential
backlash
backlash
Optional for planetary servo gear units. The
circumferential backlash of these gear units is reduced even further
than that of the reduced backlash version and therefore allows for
even greater precision when performing positioning tasks.
circumferential backlash of these gear units is reduced even further
than that of the reduced backlash version and therefore allows for
even greater precision when performing positioning tasks.
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