Timing belt pulley H 100 z=21 steel
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Weight1,43kg
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UPC Code5907009375694
Product Description
Timing belt pulley H 100 z=21 steel - for H belts with a pitch of 1/2" (12.7 mm). Made of C45 steel.
The pilot bore allows the pulley to be bored precisely to the shaft size and the fit required by the machine, to H7 tolerance. The keyway is cut on a slotting machine according to DIN 6885.
Used in machines requiring accurate motion transmission: heavy industrial drives, agricultural machinery, machine tools, presses.
When ordering, please check the lead time - it is shown directly next to the product's stock level.
Synchronous pulley H 100 mm - 21 teeth
| Parameter | Value |
|---|---|
| Series / profile | H - imperial trapezoidal H |
| Pitch | 1/2" (12.7 mm) |
| Belt width | 100 mm |
| Number of teeth (z) | 21 |
| Pitch diameter Dp | 84.89 mm |
| Outside diameter De | 83.52 mm |
| Flange diameter Df | 91 mm |
| Hub diameter Dm | 64 mm |
| Max. bore diameter Di | 32 mm |
| Pulley width F | 25 mm |
| Hub length L | 7 mm |
| Mounting | pilot bore (for reboring) |
| Material | C45 steel |
| Weight | 0.8 kg |
FAQ
How do you choose a pulley for a toothed belt?
The key is matching the series (H = pitch 1/2" (12.7 mm)) and the belt width (100 mm). The drive ratio is calculated by dividing the number of teeth of the driven pulley by the number of teeth of the driving pulley.
How can you recognise a worn pulley groove?
If the bottom of the groove is shiny, the belt has bottomed out and no longer wedges against the flanks - the pulley needs replacing. Profile gauges are used for checking.
How does excessive belt tension affect the bearings?
Excessive radial force puts high loads on the bearings, leading to overheating and premature failure. The correct tension is specified by the belt manufacturer.
Product Features
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Weight1,43kg
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UPC Code5907009375694