TAMIYA田宮工作樂 益智勞作 4速大功率齒輪箱
 4-Speed High Power Gearbox HE Item #72007
Released in 1985, the Type 260 motors have been used in a variety of educational and robotics applications. Offered as part of the Tamiya Educational Construction Series gearboxes, the 4-speed High power gearbox H.E can be assembled with high and low gear ratios. These gearboxes are seen at Robotics contests around the world. 
Specs & Features
    - The gearbox features four gear ratios (39.6:1, 47.6:1, 61.7:1, 74:1). 
 
    - Gear ratio can be easily adjusted by changing the motor pinion (10T, 12T), spur gear position, and altering the middle and final gear attachment position. 
 
    - 4mm dia. threaded driveshaft included. 
 
    - Gearbox is compatible with other Education Construction items. 
 
    - Type 260 motor included. RPM: 5040-6300, Voltage: 1.5V Recommended. 
 
    - Separately available 130 and 140 motors can also be attached with the included adapter. 
 
    - Width: 32mm, Height: 28mm, Length: 69mm. 
 
    - Two 12mm hex wheel hubs included. 
 
    - H.E. denotes High Efficiency. 
    
    
        
            
                | Gear Ratio | 
                39.6:1 | 
                47.6:1 | 
                61.1:1 | 
                74.1:1 | 
            
            
                | RPM | 
                255 | 
                212 | 
                163 | 
                136 | 
            
            
                | Torque g/cm | 
                508 | 
                588 | 
                752 | 
                876 | 
            
        
    
    本商品為套件 須組裝