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Timing pulleys - imperial pitch

Imperial pitch timing pulleys work with trapezoidal tooth belts whose pitch is given in inches. It is the oldest standardised system of synchronous drives, still present in machines from America and Europe - which is why imperial pulleys are often sought as spare parts.

Imperial timing pulleys to ISO 5294 - replacements without modifying the drive

We make the pulleys to ISO 5294, so they fit imperial belts from any manufacturer - you do not need to look for an original part or convert the drive to a metric profile. Pulleys in fine profiles are made of light aluminium, and in larger profiles - of C45 steel and grey cast iron, which withstand high loads. In the larger profiles you can choose a Taper-Lock pulley and mount it without turning the bore.

Imperial synchronous pulleys in MXL, XL, L, H and XH profiles

Pulleys in five profiles: MXL (0.080"), XL (1/5"), L (3/8"), H (1/2") and XH (7/8"). Each profile has subgroups by belt width, and within them - by mounting method. The width in the designation is given in hundredths of an inch, e.g. 100 means 1". Imperial belts can be found in the Timing belts category.

Frequently asked questions about imperial timing belt pulleys

Can I replace an imperial drive with a metric one?

Yes, but both pulleys and the belt must be replaced, because imperial and metric profiles are not interchangeable. When repairing a machine, it is simpler to choose an imperial pulley that matches the existing belt.

How do I identify the profile of a worn belt?

The designation is usually on the back of the belt, e.g. 240 L 100 - length, profile and width. If the print has worn off, measure the distance between teeth over a few teeth and compare it with the profile pitches.

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Timing belt pulley H 300 z=120 for Taper-Lock bush 3030 cast iron

Timing belt pulley H 300 z=120 for Taper-Lock bush 3030 cast iron

Pulley H z=120, pitch 1/2" (12.7 mm), width 300 mm. Material: cast iron. Mounting: Taper-Lock 3030.
Pulley H z=120, pitch 1/2" (12.7 mm), width 300 mm. Material: cast iron. Mounting: Taper-Lock 3030.
Weight
18,8 kg
In Stock
0
In Stock:
0
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Timing belt pulley H 300 z=120, cast iron

Timing belt pulley H 300 z=120, cast iron

Pulley H z=120, pitch 1/2" (12.7 mm), width 300 mm. Material: cast iron. Mounting: pilot bore.
Pulley H z=120, pitch 1/2" (12.7 mm), width 300 mm. Material: cast iron. Mounting: pilot bore.
Weight
33 kg
In Stock
4
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4

314,97 €

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314,97 €

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Timing belt pulley H 300 z=14 steel

Timing belt pulley H 300 z=14 steel

H z=14 - timing belt pulley for H belt. Pitch 1/2" (12.7 mm), width 300 mm, C45 steel. Mounting: pilot bore.
H z=14 - timing belt pulley for H belt. Pitch 1/2" (12.7 mm), width 300 mm, C45 steel. Mounting: pilot bore.
Weight
1,35 kg
In Stock
21
In Stock:
21

14,79 €

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14,79 €

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Timing belt pulley H 300 z=15 steel

Timing belt pulley H 300 z=15 steel

Pulley H z=15, pitch 1/2" (12.7 mm), width 300 mm. Material: C45 steel. Mounting: pilot bore.
Pulley H z=15, pitch 1/2" (12.7 mm), width 300 mm. Material: C45 steel. Mounting: pilot bore.
Weight
1,55 kg
In Stock
89
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89

16,57 €

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16,57 €

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Timing belt pulley H 300 z=150, cast iron

Timing belt pulley H 300 z=150, cast iron

Timing belt pulley H z=150, width 300 mm, cast iron. Fits H belts, pitch 1/2" (12.7 mm). Mounting: pilot bore. Stock level shown above the price.
Timing belt pulley H z=150, width 300 mm, cast iron. Fits H belts, pitch 1/2" (12.7 mm). Mounting: pilot bore. Stock level shown above the price.
Weight
38 kg
In Stock
0
In Stock:
0
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Timing belt pulley H 300 z=152, cast iron

Timing belt pulley H 300 z=152, cast iron

Timing pulley H 152 teeth, belt width 300 mm. Pitch 1/2" (12.7 mm), material: cast iron, mounting: pilot bore. Stock level shown above the product price.
Timing pulley H 152 teeth, belt width 300 mm. Pitch 1/2" (12.7 mm), material: cast iron, mounting: pilot bore. Stock level shown above the product price.
Weight
40 kg
In Stock
0
In Stock:
0
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Timing belt pulley H 300 z=154, cast iron

Timing belt pulley H 300 z=154, cast iron

H z=154 - timing belt pulley for H belt. Pitch 1/2" (12.7 mm), width 300 mm, cast iron. Mounting: pilot bore.
H z=154 - timing belt pulley for H belt. Pitch 1/2" (12.7 mm), width 300 mm, cast iron. Mounting: pilot bore.
Weight
42 kg
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0
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0
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Timing belt pulley H 300 z=156, cast iron

Timing belt pulley H 300 z=156, cast iron

Pulley H z=156, pitch 1/2" (12.7 mm), width 300 mm. Material: cast iron. Mounting: pilot bore.
Pulley H z=156, pitch 1/2" (12.7 mm), width 300 mm. Material: cast iron. Mounting: pilot bore.
Weight
44,2 kg
In Stock
0
In Stock:
0
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Timing belt pulley H 300 z=16 steel

Timing belt pulley H 300 z=16 steel

Timing belt pulley H z=16, width 300 mm, C45 steel. Fits H belts, pitch 1/2" (12.7 mm). Mounting: pilot bore. Stock level shown above the price.
Timing belt pulley H z=16, width 300 mm, C45 steel. Fits H belts, pitch 1/2" (12.7 mm). Mounting: pilot bore. Stock level shown above the price.
Weight
1,8 kg
In Stock
97
In Stock:
97

18,63 €

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18,63 €

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Timing belt pulley H 300 z=17 steel

Timing belt pulley H 300 z=17 steel

Timing pulley H 17 teeth, belt width 300 mm. Pitch 1/2" (12.7 mm), material: C45 steel, mounting: pilot bore. Stock level shown above the product price.
Timing pulley H 17 teeth, belt width 300 mm. Pitch 1/2" (12.7 mm), material: C45 steel, mounting: pilot bore. Stock level shown above the product price.
Weight
2,1 kg
In Stock
83
In Stock:
83

19,44 €

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19,44 €

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Timing belt pulley H 300 z=18 steel

Timing belt pulley H 300 z=18 steel

H z=18 - timing belt pulley for H belt. Pitch 1/2" (12.7 mm), width 300 mm, C45 steel. Mounting: pilot bore.
H z=18 - timing belt pulley for H belt. Pitch 1/2" (12.7 mm), width 300 mm, C45 steel. Mounting: pilot bore.
Weight
2,38 kg
In Stock
25
In Stock:
25

21,38 €

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21,38 €

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Timing belt pulley H 300 z=19 steel

Timing belt pulley H 300 z=19 steel

Pulley H z=19, pitch 1/2" (12.7 mm), width 300 mm. Material: C45 steel. Mounting: pilot bore.
Pulley H z=19, pitch 1/2" (12.7 mm), width 300 mm. Material: C45 steel. Mounting: pilot bore.
Weight
2,64 kg
In Stock
38
In Stock:
38

23,91 €

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23,91 €

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Timing belt pulley H 300 z=20 for Taper-Lock bush 1615 steel

Timing belt pulley H 300 z=20 for Taper-Lock bush 1615 steel

Timing belt pulley H z=20, width 300 mm, C45 steel. Fits H belts, pitch 1/2" (12.7 mm). Mounting: Taper-Lock 1615. Stock level shown above the price.
Timing belt pulley H z=20, width 300 mm, C45 steel. Fits H belts, pitch 1/2" (12.7 mm). Mounting: Taper-Lock 1615. Stock level shown above the price.
Weight
1,5 kg
In Stock
23
In Stock:
23

21,19 €

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21,19 €

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Timing belt pulley H 300 z=20 steel

Timing belt pulley H 300 z=20 steel

Timing belt pulley H z=20, width 300 mm, C45 steel. Fits H belts, pitch 1/2" (12.7 mm). Mounting: pilot bore. Stock level shown above the price.
Timing belt pulley H z=20, width 300 mm, C45 steel. Fits H belts, pitch 1/2" (12.7 mm). Mounting: pilot bore. Stock level shown above the price.
Weight
3,1 kg
In Stock
100
In Stock:
100

26,31 €

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26,31 €

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Timing belt pulley H 300 z=21 for Taper-Lock bush 1615 steel

Timing belt pulley H 300 z=21 for Taper-Lock bush 1615 steel

Timing pulley H 21 teeth, belt width 300 mm. Pitch 1/2" (12.7 mm), material: C45 steel, mounting: Taper-Lock 1615. Stock level shown above the product price.
Timing pulley H 21 teeth, belt width 300 mm. Pitch 1/2" (12.7 mm), material: C45 steel, mounting: Taper-Lock 1615. Stock level shown above the product price.
Weight
1,2 kg
In Stock
24
In Stock:
24

23,89 €

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23,89 €

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Timing belt pulley H 300 z=21 steel

Timing belt pulley H 300 z=21 steel

Timing pulley H 21 teeth, belt width 300 mm. Pitch 1/2" (12.7 mm), material: C45 steel, mounting: pilot bore. Stock level shown above the product price.
Timing pulley H 21 teeth, belt width 300 mm. Pitch 1/2" (12.7 mm), material: C45 steel, mounting: pilot bore. Stock level shown above the product price.
Weight
3,32 kg
In Stock
25
In Stock:
25

29,06 €

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29,06 €

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Timing belt pulley H 300 z=22 for Taper-Lock bush 1615 steel

Timing belt pulley H 300 z=22 for Taper-Lock bush 1615 steel

H z=22 - timing belt pulley for H belt. Pitch 1/2" (12.7 mm), width 300 mm, C45 steel. Mounting: Taper-Lock 1615.
H z=22 - timing belt pulley for H belt. Pitch 1/2" (12.7 mm), width 300 mm, C45 steel. Mounting: Taper-Lock 1615.
Weight
1,6 kg
In Stock
40
In Stock:
40

24,58 €

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24,58 €

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Timing belt pulley H 300 z=22 steel

Timing belt pulley H 300 z=22 steel

H z=22 - timing belt pulley for H belt. Pitch 1/2" (12.7 mm), width 300 mm, C45 steel. Mounting: pilot bore.
H z=22 - timing belt pulley for H belt. Pitch 1/2" (12.7 mm), width 300 mm, C45 steel. Mounting: pilot bore.
Weight
3,67 kg
In Stock
35
In Stock:
35

29,75 €

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29,75 €

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Timing belt pulley H 300 z=23 for Taper-Lock bush 1615 steel

Timing belt pulley H 300 z=23 for Taper-Lock bush 1615 steel

Pulley H z=23, pitch 1/2" (12.7 mm), width 300 mm. Material: C45 steel. Mounting: Taper-Lock 1615.
Pulley H z=23, pitch 1/2" (12.7 mm), width 300 mm. Material: C45 steel. Mounting: Taper-Lock 1615.
Weight
1,8 kg
In Stock
17
In Stock:
17

26,72 €

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26,72 €

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Timing belt pulley H 300 z=23 steel

Timing belt pulley H 300 z=23 steel

Pulley H z=23, pitch 1/2" (12.7 mm), width 300 mm. Material: C45 steel. Mounting: pilot bore.
Pulley H z=23, pitch 1/2" (12.7 mm), width 300 mm. Material: C45 steel. Mounting: pilot bore.
Weight
4 kg
In Stock
11
In Stock:
11

32,34 €

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32,34 €

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