XXH Timing Belts | 31.75mm Imperial Pitch | TotallyBelts

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Belt type XXH timing belts

31.75mm (1.250″) pitch · Trapezoidal teeth · Imperial sizes

XXH timing belts have a 31.75mm (1.250″) pitch and the classic trapezoidal tooth. You’ll find them on the heaviest imperial timing drives, such as mills, crushers and large process machinery, and on plenty of older and American-built machinery. They give a positive, slip-free drive with no stretch, so timing and speed stay exact. Search by the code on the old belt, such as 1000XXH300, and use the filters to narrow it down by length or width.

Pitch31.75mm (1.250″)
ToothTrapezoidal, imperial
Example1000XXH300
Teeth80 on a 100.0″ belt
Widths200 to 500 width codes

Finding the right XXH belt

Reading the code1000XXH300 is a 100.0″ pitch length belt (the first number is the length in tenths of an inch), XXH pitch, 3″ wide. The last three digits are the width in hundredths of an inch. Common widths are 200 (2″), 300 (3″), 400 (4″) and 500 (5″).

Counting teethPitch length divided by the pitch gives the tooth count. A 100.0″ XXH belt has 80 teeth. If the code has worn off, counting the teeth is the most reliable way to get the length.

Check the pitchXXH has the largest imperial pitch at 1-1/4″. If the teeth measure 7/8″ apart, you have XH instead. Measure across ten teeth and divide by ten for an accurate figure.

Tip: Belts cut to width or length to order can’t be returned unless faulty, so check the pitch, length and width before ordering.

No code?Measure the pitch, count the teeth and measure the width. Our how to measure guide shows you how.
Other sectionsTry MXL, XL, L, H or XH imperial belts, or our metric HTD range.
Still not sure?Call 020 8138 2848 with the code or measurements and we'll find the right belt.
Buying for a business?Open a trade account for trade pricing on maintenance stock and repeat orders.