Can You Use a Variable Frequency Drive on Any Motor?
A variable frequency drive (VFD) provides adjustable motor speed by varying the frequency and voltage supplied to an electric motor. However, not e...
5.0★★★★★
12 reviews
UMSG40 15:1 Worm Gearbox - 18mm Hollow Output Bore, IEC 56/63/71 Input, Aluminium
Drop-in replacement - standard IEC input flange and output shaft.
SKU: IMW-UMSG40-15.0-0.18kW-B14
£82.71
ex VAT
£99.25 inc. VAT
Motor Power / Motor Input Flange
Order in -
→ despatched today, arrives tomorrow before 5pm
★ 2pm Promise: place your order before 2pm and it is despatched the same working day. Guaranteed, not just aimed for.
Not sure this is the right gearbox?
Talk to a UK engineer. Average response < 5 min. 100% no-obligation
Larger quantities?
Get in touch for a custom quote.
The Universal Motors UMSG40 15:1 worm gearbox is a single-reduction aluminium-housed 40mm centre-distance worm/wheel reducer with a 18mm hollow output bore. This gearbox can be paired with a TEFC IEC squirrel-cage motor, available in your choice of power and input flange - either B14 or B5 motor mounting, in IEC frame sizes 56/63/71. Use the motor power dropdown to match your application's torque and speed requirements.
Technical specification
- Frame: UMSG40 (centre distance 40mm)
- Reduction ratio: 15:1
- Output bore: 18mm hollow, reducing bushes available
- Input mounting: IEC 56/63/71 (B14 or B5 flange)
- Motor options: 0.18kW, 0.25kW, 0.37kW, 0.55kW
- Housing: aluminium, B3 foot-mounted
- Worm: hardened and ground steel; wheel: centrifugally cast bronze
- Lubrication: synthetic long-life, factory filled
- Gearbox weight: 3.2kg
- Maximum output torque: 40 Nm (ratio-dependent)
- Duty: S1 continuous
Applications
Typical uses include small conveyors, label applicators, mixers, dosing pumps, light rotary tables.
Cross-reference
Interchangeable with: NMRV040, RV040, Motovario NMRV040, Bonfiglioli VF44.
Warranty and delivery
24-month manufacturer warranty. UK stock with next-day delivery.
| Input power | 0.18 kW |
|---|---|
| Input flange | B14 |
| IEC frame | 63 |
| Input speed | 1400 rpm |
| Ratio | 15:1 |
| Output speed | 97 rpm |
| Output torque | 15.1 Nm |
| Nominal torque | 40.3 Nm |
| Max output torque | 46.1 Nm |
| Service factor | 2.67 |
| Efficiency | 80% |
| Centre distance | 40 mm |
| Output bore | 18 mm |
| Type | Worm Gearbox |
| Housing material | Aluminium |
| Series | UMSG40 |
| Brand | Universal Motors |
| Warranty | 12 months manufacturer |
| SKU | IMW-UMSG40-15.0-0.18kW-B14 |
| Input power | 0.18 kW |
|---|---|
| Input flange | B5 |
| IEC frame | 63 |
| Input speed | 1400 rpm |
| Ratio | 15:1 |
| Output speed | 97 rpm |
| Output torque | 15.1 Nm |
| Nominal torque | 40.3 Nm |
| Max output torque | 46.1 Nm |
| Service factor | 2.67 |
| Efficiency | 80% |
| Centre distance | 40 mm |
| Output bore | 18 mm |
| Type | Worm Gearbox |
| Housing material | Aluminium |
| Series | UMSG40 |
| Brand | Universal Motors |
| Warranty | 12 months manufacturer |
| SKU | IMW-UMSG40-15.0-0.18kW-B5 |
| Input power | 0.25 kW |
|---|---|
| Input flange | B14 |
| IEC frame | 71 |
| Input speed | 1400 rpm |
| Ratio | 15:1 |
| Output speed | 97 rpm |
| Output torque | 21 Nm |
| Nominal torque | 40.3 Nm |
| Max output torque | 46.1 Nm |
| Service factor | 1.92 |
| Efficiency | 80% |
| Centre distance | 40 mm |
| Output bore | 18 mm |
| Type | Worm Gearbox |
| Housing material | Aluminium |
| Series | UMSG40 |
| Brand | Universal Motors |
| Warranty | 12 months manufacturer |
| SKU | IMW-UMSG40-15.0-0.25kW-B14 |
| Input power | 0.25 kW |
|---|---|
| Input flange | B5 |
| IEC frame | 71 |
| Input speed | 1400 rpm |
| Ratio | 15:1 |
| Output speed | 97 rpm |
| Output torque | 21 Nm |
| Nominal torque | 40.3 Nm |
| Max output torque | 46.1 Nm |
| Service factor | 1.92 |
| Efficiency | 80% |
| Centre distance | 40 mm |
| Output bore | 18 mm |
| Type | Worm Gearbox |
| Housing material | Aluminium |
| Series | UMSG40 |
| Brand | Universal Motors |
| Warranty | 12 months manufacturer |
| SKU | IMW-UMSG40-15.0-0.25kW-B5 |
| Input power | 0.37 kW |
|---|---|
| Input flange | B14 |
| IEC frame | 71 |
| Input speed | 1400 rpm |
| Ratio | 15:1 |
| Output speed | 97 rpm |
| Output torque | 31 Nm |
| Nominal torque | 40.3 Nm |
| Max output torque | 46.1 Nm |
| Service factor | 1.3 |
| Efficiency | 80% |
| Centre distance | 40 mm |
| Output bore | 18 mm |
| Type | Worm Gearbox |
| Housing material | Aluminium |
| Series | UMSG40 |
| Brand | Universal Motors |
| Warranty | 12 months manufacturer |
| SKU | IMW-UMSG40-15.0-0.37kW-B14 |
| Input power | 0.37 kW |
|---|---|
| Input flange | B5 |
| IEC frame | 71 |
| Input speed | 1400 rpm |
| Ratio | 15:1 |
| Output speed | 97 rpm |
| Output torque | 31 Nm |
| Nominal torque | 40.3 Nm |
| Max output torque | 46.1 Nm |
| Service factor | 1.3 |
| Efficiency | 80% |
| Centre distance | 40 mm |
| Output bore | 18 mm |
| Type | Worm Gearbox |
| Housing material | Aluminium |
| Series | UMSG40 |
| Brand | Universal Motors |
| Warranty | 12 months manufacturer |
| SKU | IMW-UMSG40-15.0-0.37kW-B5 |
| Input power | 0.55 kW |
|---|---|
| Input flange | B14 |
| IEC frame | 71 |
| Input speed | 1400 rpm |
| Ratio | 15:1 |
| Output speed | 97 rpm |
| Output torque | 46.1 Nm |
| Nominal torque | 40.3 Nm |
| Max output torque | 46.1 Nm |
| Service factor | 0.87 |
| Efficiency | 80% |
| Centre distance | 40 mm |
| Output bore | 18 mm |
| Type | Worm Gearbox |
| Housing material | Aluminium |
| Series | UMSG40 |
| Brand | Universal Motors |
| Warranty | 12 months manufacturer |
| SKU | IMW-UMSG40-15.0-0.55kW-B14 |
| Input power | 0.55 kW |
|---|---|
| Input flange | B5 |
| IEC frame | 71 |
| Input speed | 1400 rpm |
| Ratio | 15:1 |
| Output speed | 97 rpm |
| Output torque | 46.1 Nm |
| Nominal torque | 40.3 Nm |
| Max output torque | 46.1 Nm |
| Service factor | 0.87 |
| Efficiency | 80% |
| Centre distance | 40 mm |
| Output bore | 18 mm |
| Type | Worm Gearbox |
| Housing material | Aluminium |
| Series | UMSG40 |
| Brand | Universal Motors |
| Warranty | 12 months manufacturer |
| SKU | IMW-UMSG40-15.0-0.55kW-B5 |
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
5 × 0.18kW / B14 Face on the shelf in our UK warehouse, boxed and ready to go out today.
2 × 0.18kW / B5 Flange on the shelf in our UK warehouse, boxed and ready to go out today.
6 × 0.25kW / B14 Face on the shelf in our UK warehouse, boxed and ready to go out today.
4 × 0.25kW / B5 Flange on the shelf in our UK warehouse, boxed and ready to go out today.
8 × 0.37kW / B14 Face on the shelf in our UK warehouse, boxed and ready to go out today.
7 × 0.37kW / B5 Flange on the shelf in our UK warehouse, boxed and ready to go out today.
6 × 0.55kW / B14 Face on the shelf in our UK warehouse, boxed and ready to go out today.
8 × 0.55kW / B5 Flange 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 *.
Why Choose Us
Quality Products
We only stock products from trusted manufacturers known for their durability and performance. Each item in our inventory is rigorously tested before it leaves the factory to meet our high standards.
Affordable Prices
By sourcing directly from manufacturers and maintaining efficient operations, we keep our prices low without compromising on quality.
Next Day Delivery
We understand that time is money in the industrial sector. That is why we offer next day delivery on all orders placed by 3pm, ensuring you get the parts you need, when you need them.
UK Stock
All our products are held in UK stock, allowing us to provide fast and reliable shipping across the country. No long wait times or complicated import processes - just straightforward service.
Customer Support
Our knowledgeable customer support team is always ready to assist with any queries or technical questions you may have. We are here to ensure you find the right products for your specific needs.
Brands we stock
Industry News
How to Choose the Right Industrial Gearbox for Your Electric Motor
Selecting the correct gearbox for an electric motor needs more than matching shaft sizes or choosing a suitable reduction ratio. The gearbox must t...
Three-Phase DC Drives Explained: Operation, Applications and Selection
Three-Phase DC Drives Explained: Operation, Applications and Selection A three-phase DC drive converts three-phase AC electrical power into contro...