Gear accuracy: JIS B 1702-1 (ISO) Grade 7 Number of teeth: 32 Shape: B1 Standard circle diameter (mm): φ80 Tooth width (mm): 25 Hole diameter (mm): 12 Module: 2.5 Tip circle diameter: φ85 Tooth tip circle diameter: 45 集线器外径(mm):φ70 牙齿尖端圆直径(mm):φ85 集线器长度(mm):20