Track Links
■ The normal wear area on track links is on the surface that contacts the rollers and idlers
EXCESSIVE SIDE RAIL WEAR
■ Besides the operational conditions, steep ground or frequent sudden turns, this wear could be caused by track misalignment, excessive chain snaking or worn chains
INDENTATIONS ON INTERNAL SURFACE OF RAIL
■ This is caused by the sprocket teeth rubbing on the inside of the link because of sloping ground, misaligned sprocket and chain or a severley bent chain. Adjust chain tension and check alignment
PIN BOSS SIDE WEAR
■ This is caused by contact with the outside flange of the bottom track rollers. Should it occur before 100 percent of the link wear then it means the rollers are beyond their useful life and should be replaced
EXCESSIVE FACE WEAR
■This wear is caused by snaking of the links or highly abrasive working conditions
The use of track guards or fitting of lubricated SALT type chains can reduce this wear
PIN BOSS WEAR FROM TRACK GUARDS
■This results from excessive snakiness of the chain rubbing against the track guards. Worn bottom rollers & working on steep slopes can be the cause.
■Check sprocket alignment and rotate some rollers will help
RAIL CORNERS GOUGED
■Caused by severe shock loads usually transmitted by the rollers to links
■Besides operating conditions (heavy work, speed, weight and power of machine) the situation can be aggrevated by the size of the shoes and/or track tension.
■ A remedy could be to reduce the shoe size and/or adjust the chain tension
CRACKS OR BREAKAGES OF THE MOST STRESSED AREAS
■Most breakages are caused by tortional stress transmitted to the link structure when the machine is used in a severe impact application
■To reduce this failure, narrower shoes can be used and the chain tension regularly adjusted
BUSHING COUNTERBORE AND PIN BOSS DEFORMATION
■If this is not caused by incorrect tooling being used when assembling or disassembling the chain, then it is caused by bending stresses in the pins and bushes
■This problem can be reduced by fitting smaller shoes and by having the correct chain tension
Post time: Nov-25-2025
