8V2120 Optibelt SK V-Belt
- 25.4mm wide
- 23mm deep
- 5385mm effective length
8V2120 Optibelt SK V-Belt is backordered and will ship as soon as it is back in stock.
Measuring Your Belt
Measuring Your Belt
Check the markings first. Most belts have their size printed on the back, for example A24, SPZ1000 or 8PK1200. Type that code into the search bar to find the exact match.
Markings worn off? Measure across the top of the belt for the width, and its depth. For the length, wrap a piece of string round the belt, mark where it meets, then lay the string flat and measure it.
Timing or ribbed belt? Count the teeth or ribs, and measure the gap between them.
Full step-by-step guide: How to measure your belt →
Still not sure? Call 020 8138 2848 and we’ll identify it for you.
Delivery and Shipping
Delivery and Shipping
We ship across the UK and worldwide. Choose an economical service if you can wait a few days, or express if the machine is stood still until the belt arrives. Delivery costs are worked out at checkout based on the weight of your order and where it's going. More Shipping Information
8V2120 Optibelt SK V-Belt
The Optibelt SK 8V2120 is a 8V section American narrow wedge belt, 25.4mm wide with a 212″ (5385mm) effective length. It fits American 8V section pulleys and is made by Optibelt, our premier brand.
Narrow wedge belts carry more power than classical V-belts of a similar width, so drives can use smaller pulleys and fewer belts. Optibelt SK belts run at around 97% efficiency and are made to Optibelt’s S=C PLUS standard, so belts of the same size can be used together as a set without measuring and matching.
Specification
| Brand and range | Optibelt SK wrapped wedge belt |
|---|---|
| Section | 8V (American narrow) |
| Top width | 25.4mm |
| Height | 23mm |
| Effective length (Le) | 5385mm (212″) |
| Construction | Wrapped, S=C PLUS |
Check it’s the right belt
- The old belt should be marked 8V2120. The letters are the section and the number is the effective length in tenths of an inch, so 8V2120 is 212″. Measure 25.4mm across the top and 23mm deep.
- 8V belts are an American standard and aren’t interchangeable with metric SPZ, SPB or SPC belts, even though the widths are close.
- For the 3V and 5V sections, see our American narrow belts.
Not quite the right length? The nearest sizes are 8V2000 and 8V2240, or see our American narrow belts. For heavier-duty drives, see the high-performance Optibelt Red Power 8V2120 RP. Not sure? Call 020 8138 2848 and we’ll help you find the right belt.
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Section
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Construction
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Top width (mm)
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Height (mm)
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Effective length (mm)
Payment & Security
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