|   | 
                                              standard | 
                                              option | 
                                            
                                            
                                              | gearbox interface | 
                                              
                                                Closed with hub, without bearing | 
                                              
                                                with adpater plate and shaft seal 
                                              
                                              with input flange(2G300/600/800) | 
                                            
                                            
                                              | Ratio i | 
                                              4.00 | 
                                              5.0(2G600) 
5.5(2G250/300) 
4.91(2G120/121) | 
                                            
                                            
                                              | Installation position | 
                                              B5                                                 B5 shifting unit on the right | 
                                              V1 V3 | 
                                            
                                            
                                              | Output bearings | 
                                              
                                              Roller bearing | 
                                              
                                              Angular-contact ball bearing 
                                              self aligning and roller bearing(2G800/801/802) | 
                                            
                                            
                                              | Lubrication system | 
                                              
                                              Splash type lubrication | 
                                              recirculating lubrication with oil tank 
Recirculating lubrication with heat exchanger | 
                                            
                                            
                                              | Gearbox output | 
                                              
                                                Gearbox with output flange 
                                              100mm(2G120/121) 
118mm(2G250) 
130mm(2G300) 
150mm(2G600) 
180mm(2G800/801/802) | 
                                              Gearbox with output shaft 
38mm(2G121/121)INLINE 
42mm(2G250/300)INLINE 
42mm(2G250/300) 
55mm(2G300) 
65mm(2G600/800/801/802) | 
                                            
                                            
                                              | Torsional backlash at gearbox output | 
                                              ≦20arcmin 
≦15arcmin 
≦40arcmin (2G800/801/802) |