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KOMATSU D155A 3 17A-30-00070 Track Roller Assy Single Flange I InScoremachinery

Definition: What is track roller, and what’s the role of track roller for an earthmoving equipment?

Track Roller is also called lower roller or bottom roller, which is designed to carry the majority of the excavators weight and dynamic forces through the tracks, and onto the ground.

 

Maintainence: How to prolong the lifespan of track roller?

The best way is to check on a regular basis, moreover It is strongly suggested replacing all the bottom rollers on one side. If only one roller per side is changed, then as the new roller may be slightly larger in diameter it will carry a higher load and have a shorter life: 

ü Increase the point loadings of less worn rollers, thereby increasing peak ground bearing pressure.

ü Accelerate track wear.

ü Increase the likelihood of de-tracking and subsequent damage to tracks.

ü Increase the load on the track motor and gearbox.

 

Other info to share:

Track roller cannot be immersed in mud for a long time. After working, you should drive walking motor to get rid of dirt and gravel. In winter, should keep Track roller dry because there is a floating seal between the outer roller of Track roller and the shaft. If in water, it would freeze at night. When the excavator is walking the next day, the floating seal is in contact with ice to cause oil spill. When Track roller is damaged, can cause many faults, such as walking deviation, walking weakness and so on.

Description

DOZERD20D30D31D37D39D41D45D50D51
D53D58D60A-8D61EX-12D61EX-15D61EX-23D65EX-12D65EX-15D68
D75D80D85ESS-2D150D155D275D355D375D475
D2D3CD4ED4HD5CD5KD6DD6HD6K
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D8TD9ND9RD9TD9LD10ND10TD11ND11R
D135AFT150FT155FT165PL83PL87SD5KSD6NSD6NLGP

SD7NSD7KSD8N





KOMATSUPC30PC40PC45PC60PC75PC100PC120PC150PC200
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E345







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VOLVOEC55EC130EC150EC200EC210EC240EC290EC350EC360
EC480







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HYUNDAIR110R130R150R200R360R480R210R290
KATOHD140HD250HD400HD450HD550HD700HD820HD850HD880
HD900HD1220HD1250





CASECX210CX290CASE300CASE450CASE650CASE8800CASE7700

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SK350SK380SK400SK480SK450



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CHETRAT9T11T15T20T25T35T40

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SH340LS2650LS2800LS3400LS4300



SAMSUNG H.I.MX8SE200SE210SE280MX292SE350


MITSUBISHIMS110MS120MS140MS180




DRESSTATD 10TD14TD15TD20TD25



T170








WIRTGENVogele Super 1600-1/2/3Vogele Super 1800-1/2/3Vogele Super 1900-1/2/3Vogele Super 2100-1/2/3




JOHN DEEREJD450HJD550HJD650JJD750JJD850J



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