2005/02/07 Caterpillar

The Sleeve Bearings That Are Used In Some Idler Gears, Cluster Gears, Cage Assemblies, And Adapter Assemblies Are Now Available For Parts Service {1206, 7551}

Usage:

793B 1HL

Off-Highway Truck/Tractor: 785C (S/N: 1HW1-UP; APX1-UP; 5AZ1-UP) 789C (S/N: 2BW1-UP) 793B (S/N: 1HL1-UP) 793C (S/N: 4AR1-UP; ATY1-UP; 4GZ1-UP) 797 (S/N: 5YW1-UP)

Service Magazine, SEPD0655, November 2002, "The Sleeve Bearings That Are Used In Some Idler Gears, Cluster Gears, Cage Assemblies, And Adapter Assemblies Are Now Available For Parts Service". Disregard the article. Refer to the following information.

The sleeve bearings that are used in the gears, the cages, and the adapters that are in the front gear groups and accessory drive groups on the engines in the above machines are now available for parts service. The table identifies the components and the applicable sleeve bearings. The inside diameter of the installed sleeve bearing is also provided in the table.

Note: After a sleeve bearing is installed, some machining may be needed in order to achieve the inside diameter that is required. The inside diameter that is required is identified in the table.

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Table 1
Component	Bearing	Inside Diameter of the Installed Bearing	Max Ra of the Bearing	Machine
136-3234 Idler Gear ⁽¹⁾	136-3244	112.142 ± 0.010 mm (4.4150 ± 0.0004 inch)	0.8 micrometer (32 microinch)	797
137-8336 Idler Gear ⁽²⁾	137-8338	137.872 ± 0.063 mm (5.4280 ± 0.0025 inch)
146-7393 Cluster Gear Assembly ⁽²⁾	146-7395	120.009 ± 0.063 mm (4.7248 ± 0.0025 inch)
146-7404 Cage As ⁽²⁾	146-7411	63.539 ± 0.036 mm (2.5015 ± 0.0014 inch)
146-7408 Adapter ⁽²⁾	146-7411	63.539 ± 0.036 mm (2.5015 ± 0.0014 inch)
163-2600 Cage As ⁽³⁾	137-8298	63.500 ± 0.038 mm (2.5000 ± 0.0015 inch)		785C, 789C, 793B, 793C
141-7120 Cage As ⁽⁴⁾	137-8298	63.500 ± 0.038 mm (2.5000 ± 0.0015 inch)
141-7130 Adapter ⁽⁵⁾	137-8299	63.500 ± 0.038 mm (2.5000 ± 0.0015 inch)

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^( 1 )	This idler gear is used in the 136-3230 Front Gear Gp and the 164-7710 Accessory Drive Gp .
^( 2 )	This component is part of the 137-8335 Accessory Drive Gp .
^( 3 )	This cage assembly is used in several accessory drive groups.
^( 4 )	This cage assembly is used in the 121-5710 Accessory Drive Gp .
^( 5 )	This adapter is used in several accessory drive groups.