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    AI Overview
    Top rollers (carrier rollers) for Sumitomo SH120 excavators made from
    40Mn2 steel are high-performance undercarriage components designed to support track chains, prevent sagging, and reduce wear. This material is chosen for its hardness and wear-resistant properties, which are often enhanced through forging or casting techniques and specialized heat treatment processes. 
    Key Features and Specifications (40Mn2 Material) 
    • Material: 40Mn2 (Manganese Steel), often used for its superior wear resistance and durability in hard-working environments.
    • Surface Hardness: HRC 52-58.
    • Hardness Depth: Usually 4mm-10mm or 8mm-12mm, providing long-lasting performance under high stress.
    • Technology: Manufactured via forging or casting methods to ensure structural integrity.
    • Parts Breakdown: Typically includes the roller body (40Mn2), shaft (45# steel), and bronze or bimetal bushings. 
    Benefits for SH120 Excavator 
    • High Wear Resistance: Designed to withstand high-stress conditions, extending the life of the roller.
    • Reliability: The 40Mn2 material reduces the need for frequent replacements and minimizes machine downtime.
    • Compatibility: Suitable for Sumitomo SH120, SH120-1, SH120-2, SH120-3, and similar models, ensuring perfect compatibility.
    • Maintenance: Generally designed with robust sealing to operate in difficult terrain. 
    Top rollers made of 40Mn2 are widely available through excavator parts suppliers and manufacturers specializing in Sumitomo undercarriage parts. 
    • Carrier Roller Top Roller - Crawler crane track parts
      1. Roller Body: Material is 40Mn2 —hard wearing, so that can extend the roller's service life. 2. Bushing: 100% fine cooper Bushin...
      www.crawlercranetrackparts.com
    • For Sumitomo Excavator SH120 Top Roller Upper Roller Carrier Roller
      Find reliable Top Roller Upper Roller Carrier Roller to support your track chain and prevent sag. Reduce undercarriage stress & co...
      Google
    • High Performance Doosan Spare Parts Sh120 Excavator Track ...
      Excavator / Bulldozer Carrier Roller ,Top Roller ,Upper Roller. Material, 50Mn/40Mn2. Color, Yellow or Black & Customized. Techniq...
      doozer8.en.made-in-china.com
    Show all
    • Carrier Roller Top Roller - Crawler crane track parts
      1. Roller Body: Material is 40Mn2 —hard wearing, so that can extend the roller's service life. 2. Bushing: 100% fine cooper Bushin...
      www.crawlercranetrackparts.com
    • For Sumitomo Excavator SH120 Top Roller Upper Roller Carrier Roller
      Find reliable Top Roller Upper Roller Carrier Roller to support your track chain and prevent sag. Reduce undercarriage stress & co...
      Google
    • High Performance Doosan Spare Parts Sh120 Excavator Track ...
      Excavator / Bulldozer Carrier Roller ,Top Roller ,Upper Roller. Material, 50Mn/40Mn2. Color, Yellow or Black & Customized. Techniq...
      doozer8.en.made-in-china.com
    • SH120 carrier roller sumitomo upper top roller excavator parts
      SH120 carrier roller through quench-tempering processes to guarantee excellent mechanical properties,high strength and superior we...
      Quanzhou Red Hill Engineering and Machinery Co., Ltd.
    • Top Roller SH120-1 SH120-2 SH120-3 CX130B CX145C SH135U-2
      Description. ... Lucas Parts Top Rollers/Upper Rollesr/Carrier Rollers are manufactured in highest quality hardened steel with the...
      lucas parts
    • Sh60 Carrier Roller for Sh60 Sh120, Sh50 Sh55 Top Roller
      Basic Info. * Model NO. We provide all the mini undercarriage parts. * Type. Crawler. * Application. Mini Excavator. * Certificati...
      Made-in-China.com
    • Excavator Track Roller & Bottom Roller for Sumitomo SH120
      product description Product Name : Track Roller & Bottom Roller Model: Sumitomo SH120 Roller Shell Material: 45#/50Mn/40Mn2 Surfac...
      www.krmparts.com
    • Komatsu top roller PC200-7 for excavator - WorthPart
      40Mn2 ,40MnB. Surface Hardness, HRC52-58. Warranty, 6 months. Minimum Order Quantity, 5 Piece/Pieces. FOB Price, US $ 1 - 1500/ Pi...
      WorthPart
    • Sh100/Sh120/Sh200/Sh220/Sh250 for Excavator Undercarriage ...
      Product Details ... Each roller is precision machined to house special high impact low wear bimetal bushings. Reliable and long li...
      Made-in-China.com
    • New Customized Sh120 Bottom Track Roller Assy for Sumitomo ...
      Details * Basic functions of track roller. Transfer weight: The main function of track roller is to transfer the weight of the exc...
      Made-in-China.com
    • High quality Excavator track roller/top roller for Komatsu/Doosan/ ...
      Product Detail * Product Information. Material. 50Mn/40SiMnTi. Finish. Smooth. Colors. Black or yellow. Technique. Forging casting...
      www.bestpartscn.com
    • Custom SH120-5 Track Roller 40Mn2,Wholesale SH120-5 Track ...
      We support customizing the best SH120-5 track roller 40Mn2 for wholesale. If you are interested in our SH120-5 track roller 40Mn2,
      www.rhundercarriage.com
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