Product Specification:
Part Number: 198-30-00742 (also referenced as 1983000742)
Product Name: Carrier Roller / Upper Track Roller Assembly
Product Type: Undercarriage Component / Carrier Roller
Single Weight: 107 kgs
Compatible Machine Models: Komatsu D475A-8
Material: High-strength, wear-resistant forged alloy steel
Bearing Configuration: Tapered roller bearings, pre-lubricated
Seal Configuration: Multi-stage labyrinth sealing system
Application: Mining, quarrying, heavy earthmoving, dozer undercarriage replacement
Note: For detailed dimensions, bearing specifications, and installation procedures, please contact our sales team.
Key Features:
Heavy-Duty Construction: Engineered for demanding dozer applications in mining and large-scale earthmoving
Forged Alloy Steel Body: Provides superior strength, impact resistance, and fatigue resistance
Precision Bearings and Seals: Tapered roller bearings with multi-stage labyrinth sealing for contaminant protection
Track Support and Guidance: Maintains proper track alignment and reduces track sag
Critical Undercarriage Component: Essential for machine stability and track chain guidance
Direct OEM Replacement: Designed to meet OEM specification replacement standards
Reduced Downtime: Durable construction minimizes replacement frequency
Compatible Equipment:
Applications:
Replacement Information:
This carrier roller serves as a direct aftermarket replacement with OEM reference 198-30-00742 for the Komatsu D475A-8 crawler dozer. The upper track roller is engineered to meet OEM specification replacement requirements for undercarriage applications in mining and heavy earthmoving operations.
Disclaimer: Beneparts is not affiliated with Komatsu. All trademarks are used for identification and compatibility reference purposes only.
Related Parts:
198-30-00661 – Track Idler for Komatsu D475A-8
198-30-01720 – Double Flange Track Roller for Komatsu D475A-8
198-30-00940 – Double Flange Track Roller for Komatsu D475A-8
Track rollers and idlers for Komatsu D475A-8
Track shoes and track link assemblies for Komatsu D475A-8
Sprockets and undercarriage hardware
Complete undercarriage kits available upon request
FAQ:
Q: Is the 198-30-00742 a direct replacement for the OEM carrier roller?
A: Yes, the 198-30-00742 is manufactured as an aftermarket replacement with OEM specification replacement standards for the Komatsu D475A-8 carrier roller.
Q: What machine is this carrier roller compatible with?
A: It is specifically designed for the Komatsu D475A-8 crawler dozer. Verify compatibility with your specific undercarriage system before installation.
Q: What is the weight of the 198-30-00742 carrier roller?
A: The single weight is 107 kgs.
Q: What is the function of a carrier roller?
A: The carrier roller, also known as an upper roller or top roller, supports and guides the upper run of the track chain, maintaining proper track alignment and reducing track sag.
Q: What material is this carrier roller made from?
A: The 198-30-00742 is manufactured from high-strength, forged alloy steel with precision bearings and seals for durability in demanding applications.
Q: What is the lead time for this replacement part?
A: Please contact our sales team for current stock availability and shipping estimates.
