203-5805 sleeve bearing for CAT engine spare part

203-5805 sleeve bearing for CAT engine spare part Featured Image
  • 203-5805 sleeve bearing for CAT engine spare part
  • 203-5805 sleeve bearing for CAT engine spare part

Short Description:

Steel-backed sleeve bearing for Caterpillar C9 / C9.3 engine camshaft, outer diameter 70.10 mm, supports high-speed camshaft rotation by oil film, stabilizes radial clearance and ensures accurate valve timing.

Product Detail

Product Tags

description

This sleeve bearing adopts bimetallic structure with steel base and wear-resistant alloy layer, precision-bored inner bore and built-in oil groove. It is pressed into cylinder head bore to support camshaft rotation. Bore enlargement, alloy spalling, blocked oil passage and bushing creep will lead to camshaft runout, incorrect valve timing, abnormal noise and poor power. Contamination causes galling and even seizure, damaging cylinder head.

Part No.:203-5805
Type: Steel-backed bimetallic sleeve bearing (camshaft bushing)
Outer Diameter:70.10 mm
Height (in): 1.2
Length (in): 2.9
Material: Steel-backed aluminum bearing
Process: Turning, heat treatment, bore superfinishing
Compatible Fluid: Engine lube oil
Working Condition: High temperature and high-speed cyclic load inside cylinder head
Matching System: Engine camshaft valve train assembly

Application Scenarios

Fits Caterpillar C9, C9.3 diesel engines for 330C,330D,336D,340D excavators, for overhaul of camshaft bearing position in cylinder head. Matching camshaft bushing 216-5586.

FAQ 

Q：Can bearing with minor scratch on alloy layer be reused?
A：Not recommended. Scratch breaks oil film and leads to rapid spalling.

Q：Can only this single bushing be replaced while others remain old?
A：Not recommended. Coaxiality is matched, mixed parts cause offset wear.

Q：What risk if oil hole is misaligned after pressing?
A：No lubrication on contact surface, dry friction causes galling and seizure quickly.

Q：Does noisy valve train mean this bushing defective?
A：Check valve clearance, tappet wear and oil pressure first.

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