Wittenstein SP140S-MF2-50-0I1-2S – SP+ 140 Two-Stage Planetary Gearbox, Ratio 50:1, Reduced Backlash
The Wittenstein SP140S-MF2-50-0I1-2S is a two-stage precision planetary gearbox from the WITTENSTEIN alpha SP+ range, size 140. It is the MF version for cyclic operation, with:
- a 50:1 ratio
- reduced backlash (≤ 3 arcmin for the 2-stage version)
- a 32 mm clamping hub for direct mounting of the servo motor
- a maximum acceleration torque of 660 Nm
SP+ gearboxes use helical toothing and tapered roller output bearings, and they are lubricated for life. This makes the SP+ 140 a robust and precise choice for heavy servo axes that need high output torque at low speed.
What the Part Number Means
- SP – WITTENSTEIN alpha SP+ precision planetary gearbox
- 140 – Gearbox size 140
- S – Standard version
- MF – SP+ standard version, motor-mounted, for cyclic operation
- 2 – Two-stage
- 50 – Ratio i = 50
- 0 – Reduced backlash
- I – Clamping hub bore Ø 32 mm
- 1-2S – Output and design options
Key Features
- Ratio: 50:1, two stages
- High torque: max. acceleration torque 660 Nm, nominal output torque 360 Nm
- Reduced backlash: ≤ 3 arcmin (2-stage)
- Efficiency: 94%
- Clamping hub: Ø 32 mm, for direct mounting of the servo motor
- Protection and lubrication: IP65, lubricated for life
Key Specifications (WITTENSTEIN alpha SP+ 140 MF, 2-stage, i = 50)
Torque and Speed
- Ratio: i = 50
- Max. acceleration torque T2B: 660 Nm
- Nominal output torque T2N: 360 Nm
- Emergency stop torque T2Not: 1,250 Nm
- Nominal input speed n1N: 3,200 min⁻¹
- Max. input speed n1Max: 4,000 min⁻¹
Precision and Mechanics
- Max. torsional backlash: ≤ 3 arcmin (reduced); ≤ 5 arcmin on the standard version
- Max. axial force F2AMax: 9,870 N
- Max. radial force F2RMax: 9,900 N
- Max. tilting moment M2KMax: 952 Nm
- Efficiency at full load: 94%
- Service life: > 20,000 h
General Data
- Clamping hub bore: Ø 32 mm (code I)
- Operating noise: ≤ 63 dB(A)
- Weight: approx. 17 kg (incl. standard adapter plate)
- Lubrication: lubricated for life
- Degree of protection: IP65
Typical Applications
- Heavy servo axes needing high output torque at low speed
- Rotary tables, gantries and large handling systems
- Machine tools, press feeders and converting machinery
- Direct replacement of SP140S-MF2-50-0I1-2S gearboxes in existing machines
Buy the Wittenstein SP140S-MF2-50-0I1-2S from Atlantech Drives
Atlantech Drives supplies the Wittenstein SP140S-MF2-50-0I1-2S with fast worldwide shipping and a 12-month warranty. Our experienced sales team can also quote other WITTENSTEIN alpha SP+, TP+, XP+, CP and NP gearboxes. Request a quote today for price and availability.
More Wittenstein Products
- Wittenstein SP140S-MF2-28-0K1-2S
- Wittenstein SP140S-MF1-5 -0K0-2S
- Wittenstein SP180S-MF2-16 -1K1-2S
- All Wittenstein products
Manufacturer website: WITTENSTEIN
Keyword Synonyms
- SP140S-MF2-50-0I1-2S / SP 140S-MF2-50-0I1-2S / SP140SMF2500I12S
- Wittenstein SP+ 140 gearbox ratio 50
- Wittenstein alpha SP 140 planetary gearbox 50:1
- Wittenstein SP+ 140 two-stage gearhead, reduced backlash, 32 mm clamping hub
- WITTENSTEIN alpha servo gearbox size 140
- Wittenstein precision planetary gear reducer 50:1
- Wittenstein Planetengetriebe SP140S-MF2-50-0I1-2S / Servogetriebe SP+ 140 i=50
