Tandem sprocket 08B z=16 for two simplex chains, width 30 mm, C45 steel, hardened teeth

Product Description

Tandem sprocket 08B z=16 for two simplex chains, width 30 mm, C45 steel, hardened teeth is a sprocket with two toothed rims for two simplex roller chains 08B-1 (DIN 8187 / ISO 606) with a pitch of 12.7 mm (1/2"). Each rim has 16 teeth, and the sprocket is made of C45 steel.

The rims are spaced 22.8 mm apart, so each chain runs on its own rim, independently of the other. The sprocket has no hub - the 15 mm pilot bore is reamed to the shaft size and completed with a keyway or a set screw hole. The teeth are hardened, so they withstand wear from the chain rollers better.

Technical data

Applications

It works well in drives where motion from one shaft has to be transferred to two separate simplex chains - for example in conveyors with two chain strands and in agricultural and packaging machines.

Frequently asked questions

Which chain does this sprocket fit?

With two simplex roller chains 08B-1 to European standard DIN 8187 / ISO 606, with a pitch of 12.7 mm. Each chain runs on its own toothed rim.

What is the difference between a tandem sprocket and a duplex sprocket?

A tandem sprocket has two rims for two separate simplex chains 08B-1 - each chain runs on its own rim and can drive a different consumer. A duplex sprocket is designed for one duplex chain 08B-2, whose two rows of rollers are connected by common pins. That is why a duplex chain is not fitted on a tandem sprocket - the rims of this sprocket are spaced 22.8 mm apart, while the roller rows of the 08B-2 chain are 13.92 mm apart.

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.

How do I prepare the bore for mounting on the shaft?

The sprocket has a 15 mm pilot bore. It is reamed to the shaft diameter, and then a keyway or a set screw hole is made. During machining, keep the bore concentric with the rims so that both chains run without runout.

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.