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NMRV050 20:1 Worm Gearbox - 25mm Hollow Output Bore, IEC 71/80 Input, Aluminium
Drop-in replacement - standard IEC input flange and output shaft.
SKU: NMRV050-020-D71C
£220.68
ex VAT
£264.82 inc. VAT
Motor Input
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→ despatched today, arrives tomorrow before 5pm
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Larger quantities?
Get in touch for a custom quote.
The Motovario NMRV050 20:1 worm gearbox is a single-reduction, aluminium-housed 50mm centre-distance worm/wheel reducer with a 25mm hollow output bore. Available with IEC 71/80 B14 motor input - select your motor frame from the dropdown. Supplied bare (no motor) with synthetic long-life lubrication.
Technical specification
- Frame: NMRV050 (centre distance 50mm)
- Reduction ratio: 20:1
- Output bore: 25mm hollow (reducing bushes available)
- Input mounting: IEC 71/80 B14 face flange
- Housing: aluminium, B3 foot-mounted
- Worm: hardened & ground steel; wheel: centrifugally cast bronze
- Lubrication: synthetic long-life, factory filled
- Approx. gearbox weight: 5.5kg
- Duty: S1 continuous
- Motovario part numbers: NMRV050-020-D71C, NMRV050-020-D80C
Applications
Conveyors, dosing pumps, mixers, label applicators, rotary tables, packaging machinery, light material handling.
Warranty and delivery
24-month Motovario manufacturer warranty. UK stock with next-day delivery.
| Input flange | B14 |
|---|---|
| IEC frame | 71 |
| Ratio | 20:1 |
| Centre distance | 50 mm |
| Output bore | 25 mm |
| Type | Worm Gearbox |
| Housing material | Aluminium |
| Series | NMRV050 |
| Brand | Motovario |
| Warranty | 12 months manufacturer |
| SKU | NMRV050-020-D71C |
| Input flange | B14 |
|---|---|
| IEC frame | 80 |
| Ratio | 20:1 |
| Centre distance | 50 mm |
| Output bore | 25 mm |
| Type | Worm Gearbox |
| Housing material | Aluminium |
| Series | NMRV050 |
| Brand | Motovario |
| Warranty | 12 months manufacturer |
| SKU | NMRV050-020-D80C |
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
6 × 71 B14 on the shelf in our UK warehouse, boxed and ready to go out today.
8 × 80 B14 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.
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