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28B-2 duplex hub sprockets

28B-2 hub sprockets have two tooth rims and run with duplex 28B-2 chain of 1 3/4" (44.45 mm) pitch to DIN 8187 / ISO 606. This version is for drives with very high torque, e.g. in equipment conveying heavy bulk materials.

28B-2 sprocket - much more power without enlarging the sprocket

A second chain strand lets you transmit much more power without enlarging an already large sprocket. You bore out the pilot bore for your shaft, and the tall C45 steel hub provides a long keyway and stable seating.

28B-2 duplex sprockets with a tall C45 steel hub

28B-2 duplex hub sprockets in C45 steel with unhardened teeth. Versions with hardened teeth can be found in the Hardened hub sprockets group.

Questions and answers: sprockets for 28B-2 chain

Can a 28B-2 sprocket be additionally secured with a set screw?

Yes. After making the bore and keyway in the hub, you can drill and tap a hole for a set screw, which locks the sprocket axially on the shaft.

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Sprocket 28B-2 z=40 with hub

Sprocket 28B-2 z=40 with hub

Sprocket 28B-2 z=40, C45E steel, unhardened teeth. Chain 1 3/4" (44.45 mm), DIN 8187 B series. Pilot bore 30 mm, hub 200 mm.
Sprocket 28B-2 z=40, C45E steel, unhardened teeth. Chain 1 3/4" (44.45 mm), DIN 8187 B series. Pilot bore 30 mm, hub 200 mm.
Weight
174 kg
In Stock
5
In Stock:
5

1 205,78 €

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Total (total)

1 205,78 €

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Sprocket 28B-2 z=45 with hub

Sprocket 28B-2 z=45 with hub

Sprocket 28B-2 z=45, C45E steel, unhardened teeth. Chain 1 3/4" (44.45 mm), DIN 8187 B series. Pilot bore 40 mm, hub 200 mm.
Sprocket 28B-2 z=45, C45E steel, unhardened teeth. Chain 1 3/4" (44.45 mm), DIN 8187 B series. Pilot bore 40 mm, hub 200 mm.
Weight
220 kg
In Stock
4
In Stock:
4

1 533,57 €

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1 533,57 €

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Sprocket 28B-2 z=50 with hub

Sprocket 28B-2 z=50 with hub

Sprocket 28B-2 z=50, C45E steel, unhardened teeth. Chain 1 3/4" (44.45 mm), DIN 8187 B series. Pilot bore 40 mm, hub 200 mm.
Sprocket 28B-2 z=50, C45E steel, unhardened teeth. Chain 1 3/4" (44.45 mm), DIN 8187 B series. Pilot bore 40 mm, hub 200 mm.
Weight
270 kg
In Stock
4
In Stock:
4

1 859,52 €

total
Total (total)

1 859,52 €

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Sprocket 28B-2 z=57 with hub

Sprocket 28B-2 z=57 with hub

Sprocket 28B-2 z=57, C45E steel, unhardened teeth. Chain 1 3/4" (44.45 mm), DIN 8187 B series. Pilot bore 40 mm, hub 200 mm.
Sprocket 28B-2 z=57, C45E steel, unhardened teeth. Chain 1 3/4" (44.45 mm), DIN 8187 B series. Pilot bore 40 mm, hub 200 mm.
Weight
347 kg
In Stock
10
In Stock:
10

2 382,86 €

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2 382,86 €

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Sprocket 28B-2 z=76 with hub

Sprocket 28B-2 z=76 with hub

Sprocket 28B-2 z=76, C45E steel, unhardened teeth. Chain 1 3/4" (44.45 mm), DIN 8187 B series. Pilot bore 40 mm, hub 200 mm.
Sprocket 28B-2 z=76, C45E steel, unhardened teeth. Chain 1 3/4" (44.45 mm), DIN 8187 B series. Pilot bore 40 mm, hub 200 mm.
Weight
610 kg
In Stock
1
In Stock:
1

4 135,04 €

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Total (total)

4 135,04 €

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Sprocket 28B-2 z=8 with hub

Sprocket 28B-2 z=8 with hub

Sprocket 28B-2 z=8, C45E steel, unhardened teeth. Chain 1 3/4" (44.45 mm), DIN 8187 B series. Pilot bore 25 mm, hub 74 mm.
Sprocket 28B-2 z=8, C45E steel, unhardened teeth. Chain 1 3/4" (44.45 mm), DIN 8187 B series. Pilot bore 25 mm, hub 74 mm.
Weight
9 kg
In Stock
0
In Stock:
0
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Sprocket 32B-2 z=10 with hub

Sprocket 32B-2 z=10 with hub

Sprocket 32B-2 z=10, C45E steel, unhardened teeth. Chain 2" (50.8 mm), DIN 8187 B series. Pilot bore 30 mm, hub 104 mm.
Sprocket 32B-2 z=10, C45E steel, unhardened teeth. Chain 2" (50.8 mm), DIN 8187 B series. Pilot bore 30 mm, hub 104 mm.
Weight
14 kg
In Stock
18
In Stock:
18

118,42 €

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Total (total)

118,42 €

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Sprocket 32B-2 z=11 with hub

Sprocket 32B-2 z=11 with hub

Sprocket 32B-2 z=11, C45E steel, unhardened teeth. Chain 2" (50.8 mm), DIN 8187 B series. Pilot bore 30 mm, hub 120 mm.
Sprocket 32B-2 z=11, C45E steel, unhardened teeth. Chain 2" (50.8 mm), DIN 8187 B series. Pilot bore 30 mm, hub 120 mm.
Weight
16 kg
In Stock
34
In Stock:
34

141,19 €

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Total (total)

141,19 €

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Sprocket 32B-2 z=12 with hub

Sprocket 32B-2 z=12 with hub

Sprocket 32B-2 z=12, C45E steel, unhardened teeth. Chain 2" (50.8 mm), DIN 8187 B series. Pilot bore 30 mm, hub 133 mm.
Sprocket 32B-2 z=12, C45E steel, unhardened teeth. Chain 2" (50.8 mm), DIN 8187 B series. Pilot bore 30 mm, hub 133 mm.
Weight
18,2 kg
In Stock
91
In Stock:
91

164,97 €

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Total (total)

164,97 €

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Sprocket 32B-2 z=17 with hub

Sprocket 32B-2 z=17 with hub

Sprocket 32B-2 z=17, C45E steel, unhardened teeth. Chain 2" (50.8 mm), DIN 8187 B series. Pilot bore 30 mm, hub 180 mm.
Sprocket 32B-2 z=17, C45E steel, unhardened teeth. Chain 2" (50.8 mm), DIN 8187 B series. Pilot bore 30 mm, hub 180 mm.
Weight
40 kg
In Stock
53
In Stock:
53

289,84 €

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Total (total)

289,84 €

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Sprocket 32B-2 z=18 with hub

Sprocket 32B-2 z=18 with hub

Sprocket 32B-2 z=18, C45E steel, unhardened teeth. Chain 2" (50.8 mm), DIN 8187 B series. Pilot bore 30 mm, hub 180 mm.
Sprocket 32B-2 z=18, C45E steel, unhardened teeth. Chain 2" (50.8 mm), DIN 8187 B series. Pilot bore 30 mm, hub 180 mm.
Weight
44,5 kg
In Stock
12
In Stock:
12

351,03 €

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Total (total)

351,03 €

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Sprocket 32B-2 z=20 with hub

Sprocket 32B-2 z=20 with hub

Sprocket 32B-2 z=20, C45E steel, unhardened teeth. Chain 2" (50.8 mm), DIN 8187 B series. Pilot bore 30 mm, hub 200 mm.
Sprocket 32B-2 z=20, C45E steel, unhardened teeth. Chain 2" (50.8 mm), DIN 8187 B series. Pilot bore 30 mm, hub 200 mm.
Weight
56 kg
In Stock
21
In Stock:
21

427,81 €

total
Total (total)

427,81 €

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Sprocket 32B-2 z=21 with hub

Sprocket 32B-2 z=21 with hub

Sprocket 32B-2 z=21, C45E steel, unhardened teeth. Chain 2" (50.8 mm), DIN 8187 B series. Pilot bore 30 mm, hub 200 mm.
Sprocket 32B-2 z=21, C45E steel, unhardened teeth. Chain 2" (50.8 mm), DIN 8187 B series. Pilot bore 30 mm, hub 200 mm.
Weight
61 kg
In Stock
48
In Stock:
48

427,86 €

total
Total (total)

427,86 €

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Sprocket 32B-2 z=22 with hub

Sprocket 32B-2 z=22 with hub

Sprocket 32B-2 z=22, C45E steel, unhardened teeth. Chain 2" (50.8 mm), DIN 8187 B series. Pilot bore 30 mm, hub 200 mm.
Sprocket 32B-2 z=22, C45E steel, unhardened teeth. Chain 2" (50.8 mm), DIN 8187 B series. Pilot bore 30 mm, hub 200 mm.
Weight
74,2 kg
In Stock
20
In Stock:
20

511,04 €

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Total (total)

511,04 €

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Sprocket 32B-2 z=23 with hub

Sprocket 32B-2 z=23 with hub

Sprocket 32B-2 z=23, C45E steel, unhardened teeth. Chain 2" (50.8 mm), DIN 8187 B series. Pilot bore 30 mm, hub 200 mm.
Sprocket 32B-2 z=23, C45E steel, unhardened teeth. Chain 2" (50.8 mm), DIN 8187 B series. Pilot bore 30 mm, hub 200 mm.
Weight
72,5 kg
In Stock
2
In Stock:
2

550,43 €

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Total (total)

550,43 €

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Sprocket 32B-2 z=25 with hub

Sprocket 32B-2 z=25 with hub

Sprocket 32B-2 z=25, C45E steel, unhardened teeth. Chain 2" (50.8 mm), DIN 8187 B series. Pilot bore 30 mm, hub 200 mm.
Sprocket 32B-2 z=25, C45E steel, unhardened teeth. Chain 2" (50.8 mm), DIN 8187 B series. Pilot bore 30 mm, hub 200 mm.
Weight
85 kg
In Stock
42
In Stock:
42

636,73 €

total
Total (total)

636,73 €

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Sprocket 32B-2 z=26 with hub

Sprocket 32B-2 z=26 with hub

Sprocket 32B-2 z=26, C45E steel, unhardened teeth. Chain 2" (50.8 mm), DIN 8187 B series. Pilot bore 30 mm, hub 200 mm.
Sprocket 32B-2 z=26, C45E steel, unhardened teeth. Chain 2" (50.8 mm), DIN 8187 B series. Pilot bore 30 mm, hub 200 mm.
Weight
92,3 kg
In Stock
2
In Stock:
2

636,78 €

total
Total (total)

636,78 €

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Sprocket 32B-2 z=27 with hub

Sprocket 32B-2 z=27 with hub

Sprocket 32B-2 z=27, C45E steel, unhardened teeth. Chain 2" (50.8 mm), DIN 8187 B series. Pilot bore 30 mm, hub 200 mm.
Sprocket 32B-2 z=27, C45E steel, unhardened teeth. Chain 2" (50.8 mm), DIN 8187 B series. Pilot bore 30 mm, hub 200 mm.
Weight
99 kg
In Stock
0
In Stock:
0

727,34 €

total
Total (total)

727,34 €

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Sprocket 32B-2 z=28 with hub

Sprocket 32B-2 z=28 with hub

Sprocket 32B-2 z=28, C45E steel, unhardened teeth. Chain 2" (50.8 mm), DIN 8187 B series. Pilot bore 30 mm, hub 200 mm.
Sprocket 32B-2 z=28, C45E steel, unhardened teeth. Chain 2" (50.8 mm), DIN 8187 B series. Pilot bore 30 mm, hub 200 mm.
Weight
118,5 kg
In Stock
4
In Stock:
4

775,08 €

total
Total (total)

775,08 €

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Sprocket 32B-2 z=30 with hub

Sprocket 32B-2 z=30 with hub

Sprocket 32B-2 z=30, C45E steel, unhardened teeth. Chain 2" (50.8 mm), DIN 8187 B series. Pilot bore 30 mm, hub 200 mm.
Sprocket 32B-2 z=30, C45E steel, unhardened teeth. Chain 2" (50.8 mm), DIN 8187 B series. Pilot bore 30 mm, hub 200 mm.
Weight
121 kg
In Stock
11
In Stock:
11

875,35 €

total
Total (total)

875,35 €

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