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Model:0.5M40T; Material: Steel
Number of teeth: 40 teeth; Module: 0.5mode
Inner Hole: 6mm; Outer diameter:21mm
Tooth length:6mm; Total height:17mm
Center small diameter: 11mm; Screw hole: M4; âWeight:20g
Note: The real size maybe have ÃÂ±0.15 different. And if you need the screws please note when you put the order,if not we will send without screw Package Included: 2 x 1:1 0.5M40T ID=6MM Bevel Gear Bearings
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