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12B-1 finished bore sprockets

12B-1 finished bore sprockets are simplex hub sprockets for 12B-1 chain of 3/4" (19.05 mm) pitch to DIN 8187 / ISO 606. They have a bored shaft hole and a cut keyway.

12B-1 finished bore sprockets for agricultural machinery and conveyors

12B drives work in agricultural machinery, scraper conveyors, presses and construction machinery, where the sprockets are already quite heavy and machining them takes more time. A finished bore sprocket saves this work - you fit it on a keyed shaft and the drive is running again.

12B-1 sprockets in C45 steel with bore and key

12B-1 simplex sprockets in C45 steel with bores of various diameters - the D value is given in the product name. The largest bores are available on sprockets with more teeth, which have a more massive hub.

Why large bores only on larger 12B-1 sprockets - questions

Why are large bores only available on larger sprockets?

The bore and keyway must fit in the hub while keeping a safe wall thickness. A sprocket with fewer teeth has a smaller hub, so its maximum bore is also smaller.

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Sprocket 12B-1 (3/4") z=22 with hub, bore 38 mm with keyway, C45 steel

Sprocket 12B-1 (3/4") z=22 with hub, bore 38 mm with keyway, C45 steel

Sprocket with hub for chain 12B-1, 22 teeth, pitch 19.05 mm (3/4"), finished bore 38 mm with keyway, C45 steel.
Sprocket with hub for chain 12B-1, 22 teeth, pitch 19.05 mm (3/4"), finished bore 38 mm with keyway, C45 steel.
Weight
2,45 kg
In Stock
139
In Stock:
139

32,98 €

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32,98 €

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Sprocket 12B-1 (3/4") z=22 with hub, bore 40 mm with keyway, C45 steel

Sprocket 12B-1 (3/4") z=22 with hub, bore 40 mm with keyway, C45 steel

Sprocket 12B-1 (3/4") z=22 with hub, bore 40 mm with keyway, C45 steel
Sprocket with hub for chain 12B-1, 22 teeth, pitch 19.05 mm (3/4"), finished bore 40 mm with keyway, C45 steel.
Sprocket with hub for chain 12B-1, 22 teeth, pitch 19.05 mm (3/4"), finished bore 40 mm with keyway, C45 steel.
Weight
2,45 kg
In Stock
242
In Stock:
242

32,98 €

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Sprocket 12B-1 (3/4") z=22 with hub, bore 42 mm with keyway, C45 steel

Sprocket 12B-1 (3/4") z=22 with hub, bore 42 mm with keyway, C45 steel

Sprocket with hub for chain 12B-1, 22 teeth, pitch 19.05 mm (3/4"), finished bore 42 mm with keyway, C45 steel.
Sprocket with hub for chain 12B-1, 22 teeth, pitch 19.05 mm (3/4"), finished bore 42 mm with keyway, C45 steel.
Weight
2,45 kg
In Stock
26
In Stock:
26

32,98 €

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Sprocket 12B-1 (3/4") z=22 with hub, bore 45 mm with keyway, C45 steel

Sprocket 12B-1 (3/4") z=22 with hub, bore 45 mm with keyway, C45 steel

Sprocket with hub for chain 12B-1, 22 teeth, pitch 19.05 mm (3/4"), finished bore 45 mm with keyway, C45 steel.
Sprocket with hub for chain 12B-1, 22 teeth, pitch 19.05 mm (3/4"), finished bore 45 mm with keyway, C45 steel.
Weight
2,45 kg
In Stock
59
In Stock:
59

32,98 €

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Sprocket 12B-1 (3/4") z=22 with hub, bore 48 mm with keyway, C45 steel

Sprocket 12B-1 (3/4") z=22 with hub, bore 48 mm with keyway, C45 steel

Sprocket with hub for chain 12B-1, 22 teeth, pitch 19.05 mm (3/4"), finished bore 48 mm with keyway, C45 steel.
Sprocket with hub for chain 12B-1, 22 teeth, pitch 19.05 mm (3/4"), finished bore 48 mm with keyway, C45 steel.
Weight
2,45 kg
In Stock
8
In Stock:
8

32,98 €

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Sprocket 12B-1 (3/4") z=22 with hub, bore 50 mm with keyway, C45 steel

Sprocket 12B-1 (3/4") z=22 with hub, bore 50 mm with keyway, C45 steel

Sprocket with hub for chain 12B-1, 22 teeth, pitch 19.05 mm (3/4"), finished bore 50 mm with keyway, C45 steel.
Sprocket with hub for chain 12B-1, 22 teeth, pitch 19.05 mm (3/4"), finished bore 50 mm with keyway, C45 steel.
Weight
2,45 kg
In Stock
94
In Stock:
94

32,98 €

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Sprocket 12B-1 (3/4") z=23 with hub, bore 25 mm with keyway, C45 steel

Sprocket 12B-1 (3/4") z=23 with hub, bore 25 mm with keyway, C45 steel

Sprocket with hub for chain 12B-1, 23 teeth, pitch 19.05 mm (3/4"), finished bore 25 mm with keyway, C45 steel.
Sprocket with hub for chain 12B-1, 23 teeth, pitch 19.05 mm (3/4"), finished bore 25 mm with keyway, C45 steel.
Weight
2,6 kg
In Stock
54
In Stock:
54

34,65 €

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Sprocket 12B-1 (3/4") z=23 with hub, bore 28 mm with keyway, C45 steel

Sprocket 12B-1 (3/4") z=23 with hub, bore 28 mm with keyway, C45 steel

Sprocket with hub for chain 12B-1, 23 teeth, pitch 19.05 mm (3/4"), finished bore 28 mm with keyway, C45 steel.
Sprocket with hub for chain 12B-1, 23 teeth, pitch 19.05 mm (3/4"), finished bore 28 mm with keyway, C45 steel.
Weight
2,6 kg
In Stock
66
In Stock:
66

34,65 €

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Sprocket 12B-1 (3/4") z=23 with hub, bore 30 mm with keyway, C45 steel

Sprocket 12B-1 (3/4") z=23 with hub, bore 30 mm with keyway, C45 steel

Sprocket with hub for chain 12B-1, 23 teeth, pitch 19.05 mm (3/4"), finished bore 30 mm with keyway, C45 steel.
Sprocket with hub for chain 12B-1, 23 teeth, pitch 19.05 mm (3/4"), finished bore 30 mm with keyway, C45 steel.
Weight
2,6 kg
In Stock
79
In Stock:
79

34,65 €

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Sprocket 12B-1 (3/4") z=23 with hub, bore 32 mm with keyway, C45 steel

Sprocket 12B-1 (3/4") z=23 with hub, bore 32 mm with keyway, C45 steel

Sprocket with hub for chain 12B-1, 23 teeth, pitch 19.05 mm (3/4"), finished bore 32 mm with keyway, C45 steel.
Sprocket with hub for chain 12B-1, 23 teeth, pitch 19.05 mm (3/4"), finished bore 32 mm with keyway, C45 steel.
Weight
2,6 kg
In Stock
120
In Stock:
120

34,65 €

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Sprocket 12B-1 (3/4") z=23 with hub, bore 35 mm with keyway, C45 steel

Sprocket 12B-1 (3/4") z=23 with hub, bore 35 mm with keyway, C45 steel

Sprocket with hub for chain 12B-1, 23 teeth, pitch 19.05 mm (3/4"), finished bore 35 mm with keyway, C45 steel.
Sprocket with hub for chain 12B-1, 23 teeth, pitch 19.05 mm (3/4"), finished bore 35 mm with keyway, C45 steel.
Weight
2,6 kg
In Stock
144
In Stock:
144

34,65 €

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Sprocket 12B-1 (3/4") z=23 with hub, bore 38 mm with keyway, C45 steel

Sprocket 12B-1 (3/4") z=23 with hub, bore 38 mm with keyway, C45 steel

Sprocket with hub for chain 12B-1, 23 teeth, pitch 19.05 mm (3/4"), finished bore 38 mm with keyway, C45 steel.
Sprocket with hub for chain 12B-1, 23 teeth, pitch 19.05 mm (3/4"), finished bore 38 mm with keyway, C45 steel.
Weight
2,6 kg
In Stock
135
In Stock:
135

34,65 €

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Sprocket 12B-1 (3/4") z=23 with hub, bore 40 mm with keyway, C45 steel

Sprocket 12B-1 (3/4") z=23 with hub, bore 40 mm with keyway, C45 steel

Sprocket with hub for chain 12B-1, 23 teeth, pitch 19.05 mm (3/4"), finished bore 40 mm with keyway, C45 steel.
Sprocket with hub for chain 12B-1, 23 teeth, pitch 19.05 mm (3/4"), finished bore 40 mm with keyway, C45 steel.
Weight
2,6 kg
In Stock
397
In Stock:
397

34,65 €

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Sprocket 12B-1 (3/4") z=23 with hub, bore 42 mm with keyway, C45 steel

Sprocket 12B-1 (3/4") z=23 with hub, bore 42 mm with keyway, C45 steel

Sprocket with hub for chain 12B-1, 23 teeth, pitch 19.05 mm (3/4"), finished bore 42 mm with keyway, C45 steel.
Sprocket with hub for chain 12B-1, 23 teeth, pitch 19.05 mm (3/4"), finished bore 42 mm with keyway, C45 steel.
Weight
2,6 kg
In Stock
51
In Stock:
51

34,65 €

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34,65 €

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Sprocket 12B-1 (3/4") z=23 with hub, bore 45 mm with keyway, C45 steel

Sprocket 12B-1 (3/4") z=23 with hub, bore 45 mm with keyway, C45 steel

Sprocket with hub for chain 12B-1, 23 teeth, pitch 19.05 mm (3/4"), finished bore 45 mm with keyway, C45 steel.
Sprocket with hub for chain 12B-1, 23 teeth, pitch 19.05 mm (3/4"), finished bore 45 mm with keyway, C45 steel.
Weight
2,6 kg
In Stock
50
In Stock:
50

34,65 €

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Sprocket 12B-1 (3/4") z=23 with hub, bore 48 mm with keyway, C45 steel

Sprocket 12B-1 (3/4") z=23 with hub, bore 48 mm with keyway, C45 steel

Sprocket with hub for chain 12B-1, 23 teeth, pitch 19.05 mm (3/4"), finished bore 48 mm with keyway, C45 steel.
Sprocket with hub for chain 12B-1, 23 teeth, pitch 19.05 mm (3/4"), finished bore 48 mm with keyway, C45 steel.
Weight
2,6 kg
In Stock
53
In Stock:
53

34,65 €

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34,65 €

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Sprocket 12B-1 (3/4") z=23 with hub, bore 50 mm with keyway, C45 steel

Sprocket 12B-1 (3/4") z=23 with hub, bore 50 mm with keyway, C45 steel

Sprocket with hub for chain 12B-1, 23 teeth, pitch 19.05 mm (3/4"), finished bore 50 mm with keyway, C45 steel.
Sprocket with hub for chain 12B-1, 23 teeth, pitch 19.05 mm (3/4"), finished bore 50 mm with keyway, C45 steel.
Weight
2,6 kg
In Stock
103
In Stock:
103

34,65 €

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34,65 €

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Quantity must be included in range 0,01 - 103
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Sprocket 12B-1 (3/4") z=24 with hub, bore 25 mm with keyway, C45 steel

Sprocket 12B-1 (3/4") z=24 with hub, bore 25 mm with keyway, C45 steel

Sprocket 12B-1 (3/4") z=24 with hub, bore 25 mm with keyway, C45 steel
Sprocket with hub for chain 12B-1, 24 teeth, pitch 19.05 mm (3/4"), finished bore 25 mm with keyway, C45 steel.
Sprocket with hub for chain 12B-1, 24 teeth, pitch 19.05 mm (3/4"), finished bore 25 mm with keyway, C45 steel.
Weight
2,73 kg
In Stock
100
In Stock:
100

35,98 €

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35,98 €

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Sprocket 12B-1 (3/4") z=24 with hub, bore 28 mm with keyway, C45 steel

Sprocket 12B-1 (3/4") z=24 with hub, bore 28 mm with keyway, C45 steel

Sprocket with hub for chain 12B-1, 24 teeth, pitch 19.05 mm (3/4"), finished bore 28 mm with keyway, C45 steel.
Sprocket with hub for chain 12B-1, 24 teeth, pitch 19.05 mm (3/4"), finished bore 28 mm with keyway, C45 steel.
Weight
2,73 kg
In Stock
263
In Stock:
263

35,98 €

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35,98 €

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Quantity must be included in range 0,01 - 263
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Sprocket 12B-1 (3/4") z=24 with hub, bore 30 mm with keyway, C45 steel

Sprocket 12B-1 (3/4") z=24 with hub, bore 30 mm with keyway, C45 steel

Sprocket with hub for chain 12B-1, 24 teeth, pitch 19.05 mm (3/4"), finished bore 30 mm with keyway, C45 steel.
Sprocket with hub for chain 12B-1, 24 teeth, pitch 19.05 mm (3/4"), finished bore 30 mm with keyway, C45 steel.
Weight
2,73 kg
In Stock
288
In Stock:
288

35,98 €

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35,98 €

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Quantity must be included in range 0,01 - 288
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