6F-8146 O-ring for CAT bulldozer spare part

6F-8146 O-ring for CAT bulldozer spare part Featured Image
  • 6F-8146 O-ring for CAT bulldozer spare part

Short Description:

NBR O-ring for Caterpillar articulated dump truck, asphalt paver and engine, inner diameter 59.69 mm, cross-section 5.33 mm, compatible with hydraulic oil and gear oil, static seal for housings, valve blocks and pipe joints, prevents oil leakage and contamination.

Product Detail

Product Tags

description

This O-ring is widely used in Caterpillar engine, hydraulic and transmission housings. It fills groove clearance by elastic compression, 75A NBR formula delivers stable oil resistance, extrusion resistance and low compression set. Nicks, swelling, hardening and cracks will lead to oil leakage and pressure loss, and contaminants will accelerate wear of plungers, bearings and gears.

Part No.:6F-8146
Type: O-ring seal
Material: NBR nitrile rubber, Shore A75
Inner Diameter:59.69 mm
Cross-section Diameter:5.33 mm
Color: Black
Sealing Type: Static sealing, limited low-speed dynamic sealing
Compatible Medium: Hydraulic oil, gear oil, lubricating oil
Working Condition: Medium pressure and normal temperature oil environment for construction machinery hydraulic and transmission system
Matching System: Engine, hydraulic valve, pipe flange assembly

Application Scenarios

Fits Caterpillar D350E II, D400E II articulated dump truck, AP-800C, AP-800D, AP-1000 asphalt paver, 300 series engine, for overhaul of engine housing, hydraulic valve block, pipe joint and pump flange.

FAQ 

Q：Can the O-ring with minor surface scratches be installed if not cracked?
A：Not recommended. Scratches damage sealing surface and will expand under pressure and leak soon.

Q：Can FKM O-ring replace this NBR 6F-8146 directly?
A：Not recommended. Different hardness and compression property require revised preload.

Q：Can twisted O-ring be reused after straightening?
A：Not recommended. Twist creates local stress and causes premature leakage.

Q：Will new O-ring stop extrusion damage if the groove has no chamfer?
A：No. Sharp edges cut the seal, repair chamfer or install back-up ring first.

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