Track Roller for Komatsu PC800 Excavator
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Focusing on 20-330 Ton Heavy Equipment Undercarriage Manufacturing
Delivering 1:1 OEM Alternatives to Global Distributors, Manufacturers, and Major Repair Workshops.
Delivering 1:1 OEM Alternatives to Global Distributors, Manufacturers, and Major Repair Workshops.
- Compatible Komatsu Excavator ModelsPC650 5, PC650SE 5, PC750 6, PC750 7, PC750LC 6, PC750LC 7, PC800-6 30001UP PC800-6 AW 30001UP,PC800-7 W1 40001UP, PC750LC 7, PC800LC-8, PC800SE-6 30001UP, PC800SE-6 AW 30001UP, PC800SE-7 W1 40001UP
- OEM Part NumbersKM2143, 209-30-00191
Technical Specifications
- Description: Track Roller
- Place of origin: China
- Brand name: PT'ZM
- Applicable machine model: PC800
- Applicable machine brand: Komatsu
- Part number: 209-30-00191
- Certificate: GB/T19001-2016, ISO9001:2015
- Price: Negotiate
- Packaging method: Fumigate seaworthy packing
- Delivery time: 7-30 days
- Payment Terms: T/T, other terms negotiable
- Shipping terms: FOB, CIF, CFR
- Minimum order quantity: 1pc
- Supply ability: 1000pcs/month
- Material: 40Mnb2/42Crmo
- Manufacturing process: Forging
- Finish: Smooth
- Hardness: HRC48-55, depth 8-10mm
- Quality: Mining operation, heavy duty
- Warranty period: 12 months
- After-sales service: Video technical support, online support
- Color: Black or customer required
- Application: Crawler excavator
Size Chart (unit: mm)
| PC800 | A | B | C | C | E |
| 329 | 270 | 495 | 405 | 339 | |
| F | G | H | K | ||
| 298 | 255 | 160 | 115 |
Extended Service Life and Superior Durability
Our track rollers are engineered with carefully selected materials and advanced processing techniques to ensure long-lasting performance:
- The roller is made from forged 40MnB2 high wear-resistant boron steel, heat-treated to a surface hardness of HRC 48-55 with a hardening depth of 8-10mm, delivering excellent wear resistance.
- The center shaft is forged from 42CrMo alloy steel, with a surface hardness of HRC 48-55 and core hardness above HRC 28, providing both wear resistance and high fracture toughness.
- The shaft surface is precision polished by CNC machining to minimize wear on the internal copper bushing during operation.
- Pure copper bushings are used internally to enhance wear resistance, while high-density sealing rings protect the internal structure from dust, sand, and moisture intrusion.
Track Rollers function The function of the track roller is to convey the weight of an excavator to the ground . When an excavator is run on uneven ground, track rollers carry a tremendous impact. Therefore, the support of track roller is huge. Moreover, if it is of poor quality and is often dusty, it needs a very good sealing to prevent dirt, sand and water from damaging it.