Use the Gears to Count Movement with Sensors! 
Evenly spaced holes near the edge, which can be used with a slotted opto-coupler to measure velocity, acceleration or distance of the gear or vehicle. 
Holes can also be used to attach the gear to a wheel, pulley or other objects. 
- Gear 1 : 9/16 inches (14.30 mm) in diameter with 13 teeth
- Gear 2 : 3/4 inches (19.05 mm) in diameter with 18 teeth
- Gear 3 : 1 9/16 (39.69 mm) inches in diameter with 38 teeth
- Gear 4 : 2 11/32 (59.53 mm) inches in diameter with 58 teeth
- 4 center hole inserts to 1/8 inches (3.18 mm)
 
- 2 center hole inserts to 2 mm
Total: 10 Pieces  
 
             
                                                                  - 
                                        Age5+
- 
                                  Part No870148
- 
                                  Manufacturer
- 
                                  Stock No2671-CA8
- 
                                  SKU No230429
                                  *Prices subject to change without notice. We reserve the right to limit quantities.
            
            
To purchase bulk quantities, Please contact our Sales Department
   (+1-416-494-8999) or email shop@sayal.com