RING-BACKUP 1494091 - Caterpillar

Illustration 1 g03435603
Typical Example
Table 1
Callout Quantity Part Specification Description
1 - Connecting rod bearings Refer to the Specifications Module, "Connecting Rod Bearing Journal" topic for information on the connecting rod bearings.
2 - Thrust washers Standard thickness 2.26 to 2.31 mm (0.089 to 0.091 inch)
Oversize thickness 2.45 to 2.50 mm (0.097 to 0.098 inch)
3 - Main bearings Refer to the Specifications Module, "Main Bearing Journal" topic for information on the Main bearings.
4 - Crankshaft gear Maximum permissible temperature of the gear for installation on the crankshaft 180 °C (356 °F)
The timing mark is toward the outside of the crankshaft when the gear is installed on the crankshaft. Note: The SGI crankshaft cannot be reconditioned. If the crankshaft is worn or damaged, the crankshaft must be replaced
Table 2
Callout Quantity Part Specification Description
5 - Crankshaft end play End play of the crankshaft 0.05 to 0.38 mm (0.002 to 0.015 inch)
Maximum crankshaft end play 0.51 mm (0.020 inch)
6 - Connecting rod journal Refer to the Specifications Module, "Connecting Rod Bearing Journal" topic for more information on the connecting rod bearing journals and connecting rod bearings.
7 - Main bearing journal Refer to the Specifications Module, "Main Bearing Journal" topic for information on the main bearing journals and for information on the main bearings