9M-5894 O-ring for CAT wheel loader spare part

9M-5894 O-ring for CAT wheel loader spare part Featured Image
  • 9M-5894 O-ring for CAT wheel loader spare part

Short Description:

NBR O-ring for Caterpillar 966C, 980B, 980C wheel loader, inner diameter 202.56 mm, cross-section 5.33 mm, compatible with hydraulic oil and gear oil, static seal for housing flanges and end covers, prevents oil leakage and contamination.

Product Detail

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description

This O-ring is made of 75A NBR nitrile rubber, AS568-369 standard size. It fills groove clearance by elastic compression, with good resistance to mineral hydraulic oil and lube oil, extrusion resistance and stable compression set. Nicks, aging hardening, cracks and extrusion deformation will cause flange oil leakage and pressure loss, contaminants will accelerate wear of bearings, gears and hydraulic plungers.

Part No.:9M-5894
Type: O-ring seal
Material: NBR nitrile rubber, Shore A75
Inner Diameter:202.56 mm
Cross-section Diameter:5.33 mm
Standard: AS568-369
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: Wheel end assembly, transmission, hydraulic motor housing

Application Scenarios

Fits Caterpillar 966C, 980B, 980C wheel loader, for overhaul of wheel end housing flange, transmission end cover, hydraulic motor housing and pump seal.

FAQ 

Q：Can the O-ring with slight bloom on surface be installed?
A：Not recommended. Bloom indicates additive precipitation and poor elasticity, prone to leakage under pressure.

Q：What risk exists without backup ring under high pressure?
A：The O-ring may be extruded into clearance and sheared, leading to rapid seal failure.

Q：Is it okay to stretch the O-ring for a long time for easy installation?
A：No. Long-time stretching causes permanent deformation, insufficient compression and continuous leakage.

Q：Can silicone O-ring of the same size replace this NBR O-ring?
A：No. Silicone rubber is not oil-resistant and will swell rapidly in mineral oil.

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