UMSG Worm Gearbox Torque Arms - UMSG11 / UMSG13 / UMSG30 / UMSG40 / UMSG50 / UMSG63 / UMSG75 / UMSG90
Bolt-on torque arm accessory for the UMSG worm gearbox range (UMSG11 through UMSG90). Prevents gearbox rotation on shaft-mounted installations where the gearbox floats on the driven shaft. Supplied with the appropriate mounting hardware and pivot bush. Select frame size at checkout to match your gearbox.
Compatible with all ratios in the selected frame size. UK stock.
| Warranty | 12 months manufacturer |
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| Warranty | 12 months manufacturer |
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| Warranty | 12 months manufacturer |
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| Warranty | 12 months manufacturer |
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| Warranty | 12 months manufacturer |
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| Warranty | 12 months manufacturer |
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| Warranty | 12 months manufacturer |
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| Warranty | 12 months manufacturer |
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UK delivery
Next working day to most of the UK, on a fully tracked courier - you'll have the tracking link the moment it leaves our racking.
★ 2pm Promise: place your order before 2pm and it is despatched the same working day. Guaranteed, not just aimed for.
Shipping worldwide
We ship to 70+ countries with rates calculated live at checkout, so the price you see is the price you pay - no surprise invoice a week later. Moving several units, or need pallet freight? Get a freight quote on WhatsApp.
Returns
Specified the wrong one? Send it back within 14 days, unused and in its original packaging, and we'll refund it. Built-to-order and modified items are the one exception. Read the full returns policy →
Availability
8 × UMSG30 on the shelf in our UK warehouse, boxed and ready to go out today.
7 × UMSG40 on the shelf in our UK warehouse, boxed and ready to go out today.
5 × UMSG50 on the shelf in our UK warehouse, boxed and ready to go out today.
9 × UMSG63 on the shelf in our UK warehouse, boxed and ready to go out today.
5 × UMSG75 on the shelf in our UK warehouse, boxed and ready to go out today.
6 × UMSG90 on the shelf in our UK warehouse, boxed and ready to go out today.
4 × UMSG11 on the shelf in our UK warehouse, boxed and ready to go out today.
8 × UMSG13 on the shelf in our UK warehouse, boxed and ready to go out today.
Which mounting do I need?
The mounting type describes how the motor is fixed in place and how the shaft connects to your equipment. Choosing the right one ensures a direct, drop-in fit.
- B3 (Foot) - bolts down through feet on the base. The most common general-purpose mounting.
- B5 (Flange) - a large machined flange with clearance holes bolts directly to your gearbox or machine face.
- B14 (Face) - a smaller spigot/face flange with tapped holes, for lighter direct-coupled loads.
- B35 / B34 - combination mountings that provide both feet and a flange for extra support.
Still not sure? Message an engineer with your machine or existing motor's frame and we'll confirm the exact mounting for you.
Send us a message
Ask our UK engineers about this motor - sizing, stock, or a custom quote. Required fields are marked with *.

