We are manufacturer of undercarriage parts for excavators and bulldozers.we can supply SD16 bottom roller made in China

1.Body Material:40Mn₂, surface hardness HRC52-60,hardeness depth 8-20mm.Forging, Rough, Automatic welding, Overall zan fire, Quenched, Shot, Finish turning.

2. Bearing Material: 50Mn, surface hardness HRC52-60,hardeness depth 3-6mm. Forging, Rough, Lf quenched, Drilling finish, High-frequency quenching, Fine grinding, washing recipe.

3.Floating seal material: centrifugal casting,high alloy contact. hardness HRC65-72, face roughness 0.1µm-0.2µm.

4.Bolts material: 45#steel plating color Grade 10.9.

5.O-ring: have better oil leaking resistance and high-temperature resistance

6.Technique: forging

7.Certification:ISO9001:2000

8.Warranty time: one year

9. excavator undercarriage parts track roller wheel color:black or yellow

Our company is Jining Sanye Construction Machinery Co.,ltd,We has specialized in heavy construction equipment (bulldozer , excavator and loader parts ) for fifteen years With the principle of "Good quality, the best services, reasonable prices", and we are also a manufucture factory of bulldozer and excavator undercarriage in china.

1) Undercarriage spare parts manufactory , track shoe, track link, bolt, track roller, carrier roller, sprocket, front Idler, idler cushion…

2) Swing circle and related parts,swing gear, swing circle, swing machinery , moter ass'y, ring, valve, carrier …

3) Engine spare parts,cylinder head, cylinder block, turbocharger, piston, piston ring, metal, crankshaft, oil pump, fuel injection pump, water pump, alternator, starting motor…

4) Hydraulic spare parts, main valve, main pump, solenoid valve, boom/arm/bucket cylinder, final drive, travel motor, swing machinery, swing Motor…

5) Operator’s Cab spare parts, cab ass’y, monitor, controller, engine controller, wiring harness, seat, air conditioner, air compressor…

6) Work equipment,boom,boom cylinder,arm cylinder,arm,bucket cylinder,bucket,link,tooth,adapter,cutter.

7) Quick-wear part,pin, bushing,filter, belt, bucket lip…

8) Electrical system,battery ,alternator,light,cable, relay, monitor,accelerator motor ass’y,starting motor,air conditioner,controller.

9) Cooling system, radiator core ass’y, oil cooler ass’y, after cooler ass’y, condenser ass’y, air cooler ass’y.

10) Fuel tank and related parts,strainer, sensor, fuel tank, water seperator,…

11) bulldozer parts

12) Loader parts