1 1/4" (20B) Duplex Cast Iron Spockets

High quality 1 1/4" 20B duplex cast iron British Standard pitch sprockets in the most popular sizes. If the size you require is not listed, please contact us and we will check for availability.

Steel EN8, 080M40/080M46, C45

Bore size is subject to change from table below.

These gears are supplied with a pilot bore without provision for shaft fixing. The bore can be machined out to a larger accurate diameter (subject to boss size) although many users find the pilot bore quite acceptable. The machining facilities at Gears and Sprockets are limited to smaller gears, those we can machine will have the relevant options available in drop down boxes on the product page. See the 'Custom Machining' tab where applicable on the product page for more information.

Tooth radius: r3 = 32
Radius size: C = 3.5
Tooth width: B2 = 54.6

All dimensions subject to change, if a dimension is critical to your application, please contact us for confirmation.

Part No. Code No. teeth Outside dia. de Pitch dia. dp Boss dia. Bore D1* Overall width A
Contact G&S CS10DR30C 30 318.9 303.75 130 39 80
7827-016 CS10DR38C 38 399.6 384.49 140 44 90
7827-018 CS10DR45C 45 470.3 455.17 140 44 90
7827-019 CS10DR57C 57 591.5 576.36 160 50 100
7827-020 CS10DR76C *76 783.5 768.32 180 50 100

* Bore Ø H12

£320.08 incl VAT (£266.73 exc. tax)
7827-016
20B-2 38T Duplex Cast Iron Sprocket. For dimensions and product description, click button below. We source our special order products from the largest... read more
Usually dispatched in 2-5 working days
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£408.00 incl VAT (£340.00 exc. tax)
7827-018
20B-2 45T Duplex Cast Iron Sprocket. For dimensions and product description, click button below. We source our special order products from the largest... read more
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£628.61 incl VAT (£523.84 exc. tax)
7827-019
20B-2 57T Duplex Cast Iron Sprocket. For dimensions and product description, click button below. We source our special order products from the largest... read more
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£1,080.36 incl VAT (£900.30 exc. tax)
7827-020
20B-2 76T Duplex Cast Iron Sprocket. For dimensions and product description, click button below. We source our special order products from the largest... read more
Usually dispatched in 2-5 working days
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