171-7212 repair bushing CAT spare part

171-7212 repair bushing CAT spare part Featured Image
  • 171-7212 repair bushing CAT spare part
  • 171-7212 repair bushing CAT spare part
  • 171-7212 repair bushing CAT spare part

Short Description:

188-0477 CAT bolt-on crankshaft counterweight is a removable split crank balance block, fastened to crank throw by bolts. It balances rotary inertia, offsets reciprocating force and reduces engine vibration for overhaul of CAT heavy-duty diesel engines.


Product Detail

Product Tags

description

This repair sleeve is CAT OEM specification repair bushing with precision thin-wall structure. It is heat-treated and finish ground on inner and outer surfaces to guarantee roundness and concentricity. When housing bore is worn, scored or out-of-round, pressing this sleeve can restore standard dimension without replacing the whole expensive block. It is widely adopted for overhaul of excavators, loaders and generator engines as a cost-effective repair part.

Part number: 171-7212
Alternative name: Sleeve-Rep, repair bushing
Wheel hub/axle (mm): 91.95
Material: Cold rolled alloy steel
Structure: Thin-wall press-fit bushing
Process: Cold forming, heat treatment, inner & outer precision grinding, deburring
Installation: Press fit
Application: CAT heavy excavator, loader, industrial generator engine

Advantages

1. Thin-wall design suits limited installation space and keeps original assembly reference after repair.
2. Good material toughness with high compression resistance, not easy to loosen or crack after pressing.
3. Tight tolerance on ID and OD ensures standard clearance between shaft and bore after installation.
4. Alternative to block replacement, greatly cuts overhaul cost and downtime.
5. Smooth surface reduces shaft friction and extends service life after repair.
6. OE dimension standard, ready for assembly after pressing, no extra boring required.

FAQ 

Q1: Can 171-7212 sleeve be disassembled and reused?
A1: Reuse is not recommended. Deformation will occur after removal and lead to loose fit.
Q2: Can this sleeve repair heavily worn bore?
A2: Check the maximum repair allowance of this sleeve. Oversized bore needs boring and thicker repair sleeve.
Q3: Is heating required for installation?
A3: Cold press is preferred. Heat the housing only when interference is large, follow manual temperature limit.
Q4: How to store the repair sleeve?
A4: Protect both ends, coat with anti-rust oil, avoid scratches on inner and outer working surfaces.

our warehouse

our warehouse

Pack and ship

Pack and ship


  • Previous:
  • Next:
    • Write your message here and send it to us

    Products categories