#25 Chain Drive Sprocket Wheel 9-40T Bore 5-20mm Pitch 1/4" 6.35mm For 04C Chain

Warm tips                                                                                                                                                                 
This product 04C , the material is 45 # steel, the surface has been done high-frequency blackening treatment, some of the old models have high-frequency no blackening random hair, those who mind, please contact customer service!!!!

The inner hole of the sprocket is a precision machined hole, and it can be used for installation without the need for machining the inner hole after purchase

Model:04C/9-40 Teeth
Number of teeth: 9-40 teeth
Pitch: 6.35mm
Bore: 5-20mm
Material: No.45 steel
Treatment: surface high frequency blackening

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