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Highlighted Companies

D31 17 Lower Rollers Excavator Parts Bulldozer Undercarriage - China

price: contact company for price

Composition: Collar, Shaft, Copper Sleeve, Shell, Floating Seal

Material: 23MnB, or 26MnB (carbon amount determines the degree of hardness)

Process: the overall quenching

Core hardness & Surface hardness: 42-52HRC

1, Collar

Material: Q7450-10

Quenched and tempered:

Ultra-audio (standard process) 2-4mm surface depth of hardness (medium frequency process 3-8mm)


High-frequency processing (ultra-audio) shallow 0.5-1mm

2, Shaft

Material: 45 # or 42CrMo (standard)

Process: surface quenching

Surface hardness: 54-58 HRC

3, Copper Layer

Material: CuPb, copper and iron

Copper layer thickness: about 0.35mm

Inside and outside: 6-6

4, Floating Seal

Material: Powder Metallurgy (low cost, high oil leak filter)

High chromium cast iron

Surface hardness: 62-70HRC

Rubber seal: Nitrile Rubber

Surface hardness: 65-70 HRC

Filling gear oil

Drilling in the round body

Filling hole

Pressure test: 0.5-0 .6 mPa. (First pressure test and fuel) testing for leaks in the water

Program: installed - try (pressure) - and (oil) - to run, 80-90Pa gear oil

Welding: Friction welding

Port: Xiamen

Minimum Order Quantity: 2 Piece/Pieces

Supply Ability: 10000 Piece/Pieces per Month can improve

Payment Terms: T/T

Packaging Detail: wooden case/pallet

Delivery Detail: 3-10 days after the payment

Certificate: ISO9002

Warranty time: 6 months

Service: OEM and after-sale service

Company Contact:

  • Phone: 8613960308920

  • Address: Quanzhou Licheng Xintang , Quanzhou , China

  • Email: Email

Published date: April 10, 2013 -

  • Business Description: Quanzhou Licheng Xintang Automobile Parts Co., Ltd., XTP Parts was

    founded in 1984 we are leading manufacturer & exporter

    specialized in excavator undercarriage and bulldozer parts such as

    bottom rollers, top rollers, idler, sprocket, track link, track shoes,

    filter, bushing, pin, CAT engine parts, and models of Hitachi, Komatsu,

    Caterpillar, Kato, Kobelco, Sumitomo, Hyundai, Samsung, Daewoo, Yanmar,

    Kubota, Mitsubishi, Sany and more.

    XTP Parts suply to China Sany and Xiagong industry to operate in coordination in long term. We export to Russia, USA, Turkey, Australia, Singapore, India, Ghana, Fiji, Tanzania, Vietnam, Laos, Brazil, etc,.

    Under the guidance of a strong multidisciplinary management team, the company has established a fully equipped machinery shop with highly advanced computerized numeric control machines. It has specialized in tailor made casting and forging components as per the requirement of its buyers, matched to OEM standards.

    Having been in the industry for the past 30 years, we can offer expert technical advice and repairs for all your excavator & bulldozer undercarriage needs. Our vast experience and knowledge will provide our customers with the highest quality and most efficient service available.

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