Import Drive Sprockets For Excavators — Buy in Bulk from Supplier in China

Drive sprockets for excavators from A&S Undercarriage Co., Ltd. are precision-machined components designed to interface with track chains on hydraulic excavators. These sprockets feature 3, 4, 5, or 6 teeth configurations to match OEM specifications for Cat, Komatsu, Hitachi, Hyundai, and other major brands. The mounting surfaces are accurately machined to ensure proper alignment with track rollers and idlers, reducing premature wear and vibration. Each unit is hardened to enhance surface durability under high-load conditions.

The sprockets are manufactured from medium-carbon alloy steel, typically ASTM A572 Grade 50 or equivalent, with a surface hardness range of 45-52 HRC. Tooth profiles follow standard DIN 8195 or ANSI B29.1 tolerances for pitch and tooth geometry. Hardening is achieved through induction treatment, not case carburizing, to maintain core toughness while resisting abrasion from soil, rocks, and debris. This approach balances wear resistance with impact strength, critical for continuous heavy-duty operation.

These sprockets are purchased by equipment rebuilders, OEM aftermarket distributors, and large fleet operators in mining, construction, and forestry. Orders are typically fulfilled in batches of 10 or more units per model, packaged in wooden crates with corrosion-inhibiting paper. Lead times vary by model availability, and delivery terms are commonly FOB Chengdu Port. Buyers should confirm tooth count, bore diameter, and pitch compatibility before ordering.

A&S Undercarriage Co., Ltd. is based in Chengdu, Sichuan Province, China, and specializes in manufacturing undercarriage components for excavators and bulldozers. The company does not publish its founding year, workforce size, or annual revenue. It is listed as a harbor-tier supplier with no verified response rate or average response time recorded in the platform data. The supplier does not claim ISO certification, export history, or client references.

A&S produces drive sprockets, track rollers, idlers, and full undercarriage assemblies. The company accepts custom designs based on customer drawings or samples but does not list any proprietary technologies or in-house R&D facilities. Its operations appear focused on machining and heat treatment of steel components. There is no indication of testing equipment, quality control labs, or third-party inspection reports being maintained for its products.