105407-4810 ZEXEL 9 420 612 318 BOSCH GOVERNOR 9420612318 1054074810 me730321

Balancer Unit - Front Mounted
Later units have needle roller bearings and all current balancer units have reversed weights.Front Dia. of Shafts (Driving and Driven) ... 1.2484/1.2490 in(31,71/31,73 mm)Inside Dia. of Front Balance Frame Bushes ... 1.2510/1.2526 in(31,78/31,82 mm)Running Clearance of Shafts in Bushes ... 0.002/0.0042 in(0,05/0,11 mm)Rear Dia. of Shafts (Driving and Driven) ... 0.9987/0.9992 in(25,37/25,38 mm)Inside Dia. of Rear Balance Frame Bushes ... 1.001/1.0022 in(25,43/25,46 mm)Running Clearance of Shafts in Bushes ... 0.0018/0.0035 in(0,05/0,09 mm)Shaft Dia. for Balance Weights ... 1.0622/1.0630 in(26,98/27,00 mm)Bore Dia. of Balance Weights ... 1.0625/1.0637 in(26,99/27,02 mm)Fit of Balance Weights on Shafts ... -0.0005/+0.0015 in(-0,01/+0,04 mm)Spigot Dia. of Earlier Balance Weights ... 2.499/2.500 in(63,47/63,50 mm)Recess Dia. in Earlier Balance Weights ... 2.500/2.501 in(63,50/63,53 mm)Spigot Dia. for Reversed Balance Weights ... 1.374/1.375 in(34,90/34,93 mm)Recess Dia. in Reversed Balance Weight Gears ... 1.375/1.376 in(34,93/34,95 mm)Fit of Gear on Balance Weight ... -0.000/+0.002 in(-0,00/+0,05 mm)Dia. of Earlier Shaft for Lub. Oil Pump Gear ... 0.4215/0.4235 in(10,71/10,76 mm)Bore Dia. of Earlier Lub. Oil Pump Drive Gear ... 0.425/0.426 in(10,79/10,82 mm)Clearance Fit of Earlier Gear on Shaft ... 0.0015/0.0045 in(0,04/0,11 mm)Dia. of Shaft for Later Lub. Oil Pump Gear ... 0.6500/0.6508 in(16,51/16,53 mm)Bore Dia. of Later Lub. Oil Pump Drive Gear ... 0.6513/0.6533 in(16,54/16,59 mm)Clearance Fit of Later Gear on Shaft ... 0.0005/0.0033 in(0,01/0,08 mm)Depth of Earlier Lub. Oil Pump Body ... 0.999/1.002 in(25,38/25,45 mm)Depth of Later Lub. Oil Pump Body ... 1.002/1.005 in(25,45/25,53 mm)Width of Lub. Oil Pump Drive Gears ... 0.998/1.000 in(25,35/25,40 mm)End Float of Earlier Oil Pump Gears (with joint) ... 0.003/0.008 in(0,08/0,20 mm)End Float of Later Oil Pump Gears ... 0.002/0.007 in(0,05/0,18 mm)Shaft Dia. for Lub. Oil Pump Driven Gear ... 0.4382/0.4386 in(11,13/11,14 mm)Bore Dia. of Lub. Oil Pump Driven Gear ... 0.4394/0.4404 in(11,16/11,19 mm)Running Clearance of Oil Pump Driven Gear ... 0.0008/0.0022 in(0,02/0,06 mm)Hub Dia. for Idler Gear ... 1.4984/1.4990 in(38,06/38,08 mm)Bore Dia. of Idler Gear Bush ... 1.500/1.5016 in(38,10/38,14 mm)Running Clearance of Idler Gear on Hub ... 0.001/0.0032 in(0,03/0,08 mm)Idler Gear End Float ... 0.008/0.014 in(0,20/0,36 mm)Balancer Unit - Centre Mounted
No. of Teeth on Driveshaft Gear ... 21Dia. of Driveshaft (at Front Bearing) ... 1.124/1.125 in(28,562/28,575 mm)Dia. of Driveshaft (at Rear Bearing) ... 0.936/0.937 in(23,787/23,800 mm)Dia. of Oil Pump Drive Splines ... 1.124/1.125 in(28,562/28,575 mm)No. of Splines ... 6Dia. of Balance Weight Drive Gear Splines ... 0.650/0.651 in(15,51/15,53 mm)No. of Splines ... 6Dia. of Front Bearing Bore (Driveshaft) ... 1.374/1.375 in(34,912/34,937 mm)Outside Dia. of Front Bearing (Driveshaft) ... 1.3748 in(34,92 mm)Inside Dia. of Front Bearing (Driveshaft) ... 1.125 in(28,58 mm)Dia. of Rear Bearing Bore (Driveshaft) ... 1.800/1.805 in(29,972/29,993 mm)Outside Dia. of Rear Bearing (Driveshaft) ... 1.181 in(30,00 mm)Inside Dia. of Rear Bearing (Driveshaft) ... 0.937 in(23,8 mm)Dia. of Balance Frame and End Frame Bush Bores ... 1.656/1.657 in(42,070/42,095 mm)Outside Dia. of Balance Frame and End Frame Bushes ... 1.66 in(42,164 mm)Inside Dia. of Balance Frame and End Frame Bushes ... 1.501/1.503 in(38,133/38,174 mm)Clearance of Balance Weight Shafts in Bushes ... 0.0025/0.0047 in(0,064/0,120 mm)Shaft Dia. of Balance Weights ... 1.498/1.499 in(38,054/38,069 mm)No. of