Wittenstein SK+075S-MF1-3-1E1-1K00 – SK+ 075 Right-Angle Servo Gearbox, Ratio 3:1
The Wittenstein SK+075S-MF1-3-1E1-1K00 is a low-backlash, single-stage right-angle servo gearbox from the WITTENSTEIN alpha SK+ range, size 075.
Main characteristics:
- Ratio: 3:1
- Backlash: standard, ≤ 4 arcmin
- Clamping hub: 19 mm, for direct mounting of the servo motor
- Output: keyed shaft
- Motor position: 90° to the output, to save space in compact machine layouts
- Lubrication: for life
What the Part Number Means
- SK+ – WITTENSTEIN alpha SK+ low-backlash right-angle servo gearbox
- 075 – Gearbox size 075
- S – Standard design
- MF – Motor attachment gearbox, standard version
- 1 – Single-stage
- 3 – Ratio i = 3
- 1 – Standard backlash
- E – Clamping hub bore Ø 19 mm
- 1K00 – Output design (shaft with key) and option code
Key Features
- Right-angle (90°) design, suited to compact layouts
- Ratio: 3:1, single stage
- Low backlash: ≤ 4 arcmin
- High input speed: up to 7,500 min⁻¹
- Torque: max. acceleration torque 70 Nm, max. output torque 84 Nm
- Efficiency: 96%
- Clamping hub: Ø 19 mm
- Protection and lubrication: IP65, lubricated for life
Key Specifications (WITTENSTEIN SK+075S-MF1-3-1E1-1K, data sheet)
Torque and Speed
- Ratio: i = 3
- Max. output torque T2α: 84 Nm (depends on application conditions)
- Max. acceleration torque T2B: 70 Nm (max. 1,000 cycles/h)
- Nominal output torque T2N: 50 Nm
- Emergency stop torque T2Not: 95 Nm (permitted 1,000 times over service life)
- Nominal input speed n1N: 2,300 min⁻¹
- Max. input speed n1Max: 7,500 min⁻¹
- Mean no-load running torque T012: 2.4 Nm (n1 = 3,000 min⁻¹, 20 °C)
Precision and Mechanics
- Max. torsional backlash: ≤ 4 arcmin (standard)
- Torsional rigidity Ct21: 5 Nm/arcmin
- Max. axial force F2AMax: 3,400 N
- Max. radial force F2RMax: 4,000 N
- Max. tilting moment M2KMax: 437 Nm
- Efficiency at full load: 96%
- Service life: > 20,000 h
General Data
- Clamping hub bore: Ø 19 mm (code E)
- Output: shaft with key
- Mass moment of inertia J1: 1.46 kgcm²
- Operating noise: ≤ 66 dB(A) (n1 = 3,000 min⁻¹, no load)
- Weight: approx. 4.8 kg (incl. standard adapter plate)
- Lubrication: lubricated for life
- Degree of protection: IP65
- Max. housing temperature: 90 °C
- Ambient temperature: 0 °C to 40 °C
Typical Applications
- Servo axes where the motor must be mounted at 90° to the output
- Packaging, printing and converting machinery
- Handling systems, conveyors and rotary axes in compact layouts
- Direct replacement of SK+075S-MF1-3-1E1-1K00 gearboxes in existing machines
Buy the Wittenstein SK+075S-MF1-3-1E1-1K00 from Atlantech Drives
Atlantech Drives supplies the Wittenstein SK+075S-MF1-3-1E1-1K00 with fast worldwide shipping and a 12-month warranty. Our experienced sales team can also quote other WITTENSTEIN alpha SK+, SPK+, NPK, SP+ and TP+ gearboxes. Request a quote today for price and availability.
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Manufacturer website: WITTENSTEIN
Keyword Synonyms
- SK+075S-MF1-3-1E1-1K00 / SK+ 075S-MF1-3-1E1-1K00 / SK075S-MF1-3-1E1-1K00 / SK075SMF131E11K00
- Wittenstein SK+ 075 right-angle gearbox ratio 3
- Wittenstein alpha SK+ 075 servo right-angle gearhead 3:1
- Wittenstein SK+ 075 bevel gearbox, 19 mm clamping hub
- WITTENSTEIN alpha low-backlash right-angle servo gearbox
- Wittenstein 90° servo gear reducer 3:1
- Wittenstein Winkelgetriebe SK+075S-MF1-3-1E1-1K00 / Servo-Winkelgetriebe SK+ 075 i=3
