Sprocket 16A-1 (80-1) z=21 with hub
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Weight5,1kg
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UPC Code5908453542151
Product Description
Sprocket 16A-1 (80-1) z=21 with hub fits ASA 80 (16A-1) roller chain, single-strand (simplex), with a pitch of 25.4 mm (1"). It has 21 teeth and is made of C45 steel in accordance with ISO 606 and ANSI B29.1.
The sprocket has a one-sided hub with a diameter of 110 mm and a pilot bore of Ø20 mm, which is bored to the shaft size and completed with a keyway or a set screw hole. The total width of the sprocket is 50 mm.
Technical data
| Chain | ASA 80-1 / 16A-1 |
| Pitch | 25.4 mm (1") |
| Chain inner width | 15.88 mm |
| Roller diameter | 15.88 mm |
| Number of teeth | 21 |
| Pitch diameter Dp | 170.43 mm |
| Outside diameter De | 183.54 mm |
| Type | sprocket with hub |
| Hub diameter d | 110 mm |
| Pilot bore D | 20 mm |
| Total width H | 50 mm |
| Tooth width | 15 mm |
| Material | C45 steel |
| Weight | 5.1 kg |
| EAN | 5908453542151 |
Applications
It works in drives of lifts, winches and heavy chain conveyors.
Frequently asked questions
Which chain does this sprocket fit?
ASA 80-1 (16A-1) roller chain with a pitch of 25.4 mm. A simplex sprocket requires a single-strand (simplex) chain.
Does it fit 16B chain?
No. 16B chain (European standard) has the same pitch and roller diameter, but a different inner width (17.02 mm instead of 15.88 mm). The ASA 80 sprocket is designed for American-standard chain, so the two systems should not be mixed.
How does tooth wear affect machine operation?
Worn teeth make the chain engage the sprocket unevenly and abruptly. This causes vibrations that are passed on to shafts and bearings and accelerate wear of the whole drive.
How do I check the pitch of a sprocket?
The sprocket pitch matches the chain pitch - it is the distance between the centres of adjacent teeth measured on the pitch circle. The easiest way to check it is to place a section of matching chain on the sprocket: it should sit on the teeth without tension. This sprocket has a pitch of 25.4 mm (1").
How is the pitch diameter of a sprocket calculated?
The pitch diameter Dp is the circle along which the chain rollers travel. It is calculated with the formula: pitch divided by the sine of (180° / number of teeth). For this sprocket it is 170.43 mm, and the outside diameter De is 183.54 mm.
What does the lead time depend on?
When ordering, please check the current stock level of this sprocket - the lead time depends on it and is clearly stated according to the quantity available in each warehouse. The stock level is shown above the product price and may vary depending on the warehouse.
Product photos are for illustration purposes only.
Product Features
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Weight5,1kg
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UPC Code5908453542151