EPC Parts Catalogs

349F and 352F Excavators Machine System Specifications Track Carrier Roller Caterpillar


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Track Carrier Roller
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349F and 352F Excavators Machine System Specifications [UENR2953]
349F and 352F Excavators Machine System Specifications Hydraulic Oil Lines
349F and 352F Excavators Machine System Specifications Control Valve
UNDERCARRIAGE
ROLLER GP
349F and 352F Excavators Machine System Specifications Track Carrier Roller
349F and 352F Excavators Machine System Specifications Track Roller (Single Flange)
349F and 352F Excavators Machine System Specifications Track Carrier Roller
345B Excavator and 345B Material Handler Machine System Specifications Track Roller Mounting
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Illustration 1g06508140
Typical example

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Table 1
Item  Qty  Part Number  Specification Description 
1  1  4H-9105 O-Ring Seal  Lubricate the bore lightly with the lubricant that is being sealed. 
2  1  475-8471 Duo-Cone Seal Gp  Rubber toric rings and all surfaces contacting the toric seals must be clean and dry at assemblies. Before assembly, apply a thin film of oil to the contacting surfaces of the metal ring seals. Assemble the ring seals square with the bore and the toric ring must not be bulged or twisted. 
3  1  6Y-8172 Carrier Roller Bearing  Bore after assembly is 78.28 ± 0.09 mm (3.082 ± 0.004 inch). 
4  3  8T-0273 Bolt  Torque to 100 ± 5 N·m (74 ± 4 lb ft)(1). 
5  1  -  Before assembly, the length of the shaft (D1) must be free of paint.
The length of the shaft (D1) is 80 ± 5 mm (3.2 ± 0.2 inch)(2).
The length of the shaft (D1) is 110 ± 5 mm (4.3 ± 0.2 inch)(3). 
6  -  8T-0273 Bolt  Torque to 135 ± 5 N·m (100 ± 4 lb ft). 
-  -  -  End play for the track roller shaft:
Minimum end play is 0.3 mm (0.01 inch).
Maximum end play is 1.2 mm (0.05 inch).
End play for the track roller shaft for 8E-4623:
Minimum end play is 0.25 mm (0.010 inch).
Maximum end play is 1.25 mm (0.049 inch). 
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(1) Not applicable for 8E-4623
(2) For 300-4610 and 8E-4623
(3) For 300-4611 and 542-8380

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