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H (1/2") timing pulleys

H timing pulleys work with H belts with a trapezoidal tooth and a pitch of 1/2" (12.7 mm). It is the most popular imperial profile in medium and high-power drives - in agricultural machinery, machine tools, presses and heavy industrial equipment.

H timing pulleys - quiet running without lubrication under high loads

An H belt carries high loads, yet runs quietly and needs no lubrication - a convenient alternative to a chain in machines where grease is a problem. The pulleys comply with the standard, so they replace a worn pulley in the machine without modifications. Smaller pulleys are made of C45 steel, and larger ones of grey cast iron, which dampens vibration well. With the Taper-Lock version you can replace the pulley quickly, without removing the shaft for machining.

1/2 inch pitch H synchronous pulleys - selection by width and mounting

H pulleys divided by belt width, marked in hundredths of an inch (e.g. 100 means 1", i.e. 25.4 mm), and within each width - by mounting method: Pilot bore or Taper-Lock. H belts can be found in the Timing belts category.

H timing belt pulleys - customer questions

Does an H pulley fit 08B chain?

No. Although the pitch is the same, a timing pulley has trapezoidal grooves for the belt teeth, while a sprocket has a profile for the chain rollers.

Which H pulley width should I choose?

The same as the belt width. In a new drive, the width is selected according to the transmitted power - a wider belt transmits more with the same pulley diameters.

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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
In Stock:
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
In Stock:
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
In Stock
0
In Stock:
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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