Sprocket 08B-2 z=21 for Taper-Lock bush 1610, C45 steel

Product Description

Sprocket 08B-2 z=21 for Taper-Lock bush 1610, C45 steel works with 08B-2 roller chain (European standard DIN 8187 / ISO 606), double-strand (duplex), with a pitch of 12.7 mm (1/2"). It has 21 teeth and is made of C45 steel.

The sprocket has a seat for a Taper-Lock 1610 clamping bush, so it can be mounted on the shaft without boring the hole or cutting a keyway in the sprocket - simply choose a 1610 bush with a bore that matches the shaft. The hub diameter is 70 mm and the total width of the sprocket is 25 mm. The bush is not included - the 1610 bush can be purchased separately from our range.

Technical data

Applications

It works in light chain transmissions where quick mounting and dismounting matter. The double-strand version carries higher loads than a single-strand one of the same pitch.

Frequently asked questions

Which chain does this sprocket fit?

08B-2 roller chain to European standard DIN 8187 / ISO 606, with a pitch of 12.7 mm. A duplex sprocket requires a double-strand (duplex) chain.

Does it fit ASA 40 chain?

No. ASA 40 chain (American standard) has the same pitch, but a different roller diameter (7.94 mm instead of 8.51 mm) and a different inner width (7.94 mm instead of 7.75 mm). The 08B sprocket is designed for European-standard chain, so the two systems should not be mixed.

Does the bush connection need to be checked during operation?

Yes. After the first period of operation, and later during inspections, it is worth checking that the bush screws are tight. In drives operating at higher temperatures, a check after the first warm-up is especially important.

Can a Taper-Lock bush be reused?

Yes, if it has not been mechanically damaged. Easy dismounting and remounting is one of the main advantages of this system.

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 12.7 mm (1/2").

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.