5D-7523 O-ring for CAT bulldozer spare part

5D-7523 O-ring for CAT bulldozer spare part Featured Image
  • 5D-7523 O-ring for CAT bulldozer spare part

Short Description:

Large-size NBR O-ring for Caterpillar bulldozers, excavators and generator sets, compatible with hydraulic oil and gear oil, static seal for large housing flanges and end covers, prevents oil leakage and contamination.

Product Detail

Product Tags

description

This O-ring is made of NBR nitrile rubber, designed for large flange sealing of heavy-duty construction equipment. It fills groove clearance by elastic compression, featuring good mineral oil resistance and extrusion resistance. Nicks, cracking, swelling and aging will lead to flange leakage and pressure loss, and contaminants will accelerate wear of gears, bearings and plungers.

Part No.:5D-7523
Type: O-ring seal
Material: NBR nitrile rubber
Color: Black
Sealing Type: Static sealing, limited low-speed dynamic sealing
Compatible Medium: Hydraulic oil, gear oil, mineral lubricant
Working Condition: Medium pressure and normal temperature oil environment for construction machinery transmission and hydraulic system
Matching System: Final drive, transmission, hydraulic pump housing assembly

Application Scenarios

Fits Caterpillar D9L, D9R, D10N, D10R, D10T bulldozers, 3400, C27 diesel engines and generator sets, for overhaul of final drive housing flange, transmission end cover and hydraulic pump housing.

FAQ 

Q：Can the O-ring with fold marks from storage be installed?
A：Not recommended. Internal stress forms at folds and cracks will occur under pressure.

Q：Can thick grease compensate slightly warped flange?
A：No. Grease cannot fix uneven gap, leakage will happen under pressure fluctuation.

Q：What is the risk of prying the large O-ring into groove?
A：It may cause invisible cuts and stretch, leading to slow leakage after startup.

Q：Can FKM O-ring of same size replace this NBR O-ring?
A：Follow OEM spec. FKM has different compression property, groove compression must be verified.

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