RACER Machinery - KOMATSU PC100-6 Idler Cushion Spring 22B-30-11240

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KOMATSU PC100-6 Idler Cushion Spring 22B-30-11240

Supplier: Racer Machinery

Brand: KOMATSU

OEM Available: Yes

Place of delivery: China

Payment: Credit / Debit cards; PayPal

Price: Chat Online

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excavator KOMATSU PC100-6 Idler Cushion Spring 22B-30-11240

Basic Information

Part Number: 22B-30-11240 (also written as 22B3011240)
Alternative Names: Track Recoil Spring, Idler Buffer Spring
Category: Excavator Undercarriage Parts - Track Tensioning System
Original Manufacturer: KOMATSU

Compatible Models

This part fits the following KOMATSU excavator models:

PC100 Series: PC100-6, PC100-6E, PC100-6S, PC100-6Z
PC120 Series: PC120-6, PC120-6E, PC120-6S, PC120-6Z
PC128 Series: PC128US-2, PC128UU-2
PC130 Series: PC130-6, PC130-7, PC130-8
PC138 Series: PC138US-8, PC138USLC-8

Technical Specifications

Spring Only Weight: Approximately 46.52 lbs (21.1 kg)
Complete Assembly Weight: Approximately 123 lbs (56 kg) (includes spring seat, piston rod and other components)
Material: High carbon spring steel with black oxide finish, providing excellent elasticity and wear resistance
Function: As the core component of the track tensioning system, it absorbs impact loads during excavator travel, maintains proper track tension, prevents track derailment, and extends the service life of undercarriage components

Market Price & Availability

Chinese Aftermarket: $150 - $200 per unit (6 months to 1 year warranty)
European/American Aftermarket: $225 - $300 per unit (1 year warranty)
Genuine KOMATSU: $400 - $600 per unit
Major Aftermarket Brands: Berco, ITR, Blumaq, Costex Tractor Parts
Lead Time: 1-3 days for shipping from Chinese suppliers, 7-15 days for international delivery

Related Parts

203-30-42242: Interchangeable alternative part number used by some suppliers
22B-30-112420: Complete track adjuster assembly for PC130-6/7 models
Track Adjuster Cylinder: Hydraulic component that works with the spring to adjust track tension

Installation & Maintenance Precautions

Safety First: Track recoil springs store enormous energy. Always use specialized tools for removal and installation. Never pry or hammer the spring forcefully to prevent it from ejecting and causing serious injury.
Pressure Release Procedure: Before replacement, slowly loosen the pressure relief valve on the track adjuster cylinder to release internal high-pressure grease until the track is completely slack.
Installation Requirements: Ensure the spring axis is aligned with the guide rod and the mounting base is flat to avoid subjecting the spring to additional bending stress.
Track Tension Adjustment: After installation, adjust the track sag to 20-30mm (press the middle of the track with your finger). Excessive looseness causes derailment, while excessive tightness accelerates undercarriage wear.
Regular Inspection: Inspect the spring condition every 500 operating hours. Replace immediately if cracks, deformation, or loss of elasticity are detected.

Dimensional Notes

Since KOMATSU does not publish exact spring dimensions publicly, minor variations may exist between different aftermarket suppliers. If you need a custom spring, measure the following critical dimensions of your old spring:

Wire Diameter
Outer Diameter
Free Length
Total Coils
Active Coils

Racer Machinery company provides genuine KOMATSU PC100-6 Idler Cushion Spring 22B-30-11240. We guarantee that all parts are brand new products. You can directly consult us about the relevant content of KOMATSU PC100-6 Idler Cushion Spring 22B-30-11240, such as size, weight, transportation, shipping costs, and so on.

We have been engaged in the aftermarket spare parts sales industry for many years. As a professional excavator parts supplier. The clients we collaborate with are located around the world, including Katowice (Poland), Winnipeg (Canada), South Africa, Belize, Tuvalu, Anguilla, and more. Not only KOMATSU PC100-6 Idler Cushion Spring 22B-30-11240, we also have products such as hydraulic main pump, PC300-7 front idler roller, pc200-8 hydraulic pumps main pumps, PC300-5 diesel oil fuel pump, part turbocharger, etc. We have strong global sales capabilities for excavator parts. Looking forward to cooperate with you.