✖

Home

Stock Categories

Quality Control

Hydraulic pump and pump parts

Relief valve and other valve

excavator

Home>Products>Relief valve and other valve>Hot sale for caterpillar CAT245 excavator pump parts

Hot sale for caterpillar CAT245 excavator pump parts MODELS

Need a CAD or 3D Model?

Contact Now WhatsApp Be Our Agent

Hot sale for caterpillar CAT245 excavator pump parts

Hot sale for caterpillar CAT245 excavator pump parts SPECIFICATIONS

Min.Order Quantity:Negotiation
Price:Negotiation

TOKIMEC VANE PUMP LTD

SunnyChina

Sunny2020-07-10 09:46:19
Welcome to my shop! Glad to serve you! Please send your question!

Interested In: Price Inspection Certificate Product Specifications Company Profile

Hot sale for caterpillar CAT245 excavator pump parts Systems

Port Orientation - Cover End:Standard Pilot
Model No.:1.25 in
Integral Valve Configuration:Straight w/ Key
Max. RPM [Max:4525V
Pressure Port Size, Shaft End:1 1/2 in Code 61
Major Diameter [Max:Double
Controlled Flow Rate:Buna-N
Shaft End RPM [Max:1800
GPM @ 1,800 rpm, Cover End:N/A
Displacement Cover End (cu in/revolution):2.5
Seal Material:Single Shaft Seal
Rotation:N/A
Shaft End Pressure [Max:Motor
Minor Diameter [Max:1800
Weight:1800
Shaft End Flow @ RPM:N/A
Cover End Flow @ RPM:12 gal/min @ 1200 rpm, 18 gal/min @ 1800 rpm
Manufacturer Part No.:N/A
Minor Diameter:N/A
Relief Valve Setting:N/A
Cover End RPM [Max:N/A
Shaft Dia.:N/A
Port Size:42 gal/min @ 1200 rpm, 63 gal/min @ 1800 rpm
Displacement Shaft End (cu in/revolution):8.4
GPM @ 1,800 rpm, Shaft End:4 Bolt Flange Per SAE J518C W/ English Threads
Shaft Type:2500
Major Diameter [Min:2500
Port Orientation - Shaft End:Outlet Opposite Inlet
Mounting Flange:63
Minor Diameter [Min:135° CCW From Inlet Port
Mounting:N/A
Shaft Seal Type:Outlet 135° CCW from Inlet

Hot sale for caterpillar CAT245 excavator pump parts Dimensions

rexroth pump parts A10VD43	Weight:101.0 LB; Minor Diameter [Max:Flange Mount; Shaft Seal Type:Right Hand (CW); Relief Valve Setting:4525V42A12-1AA22R; Seal Material:3.5; Shaft Type:Flange; Cover End Pressure [Max:5/16 in; Shaft Length:22; GPM @ 1,800 rpm, Shaft End:Standard Pilot; Model No.:1.25 in; Shaft Type:Straight w/ Key; Pump Series:4525V; Shaft Length:2 7/16 in; Configuration:Double; Seal Material:Buna-N; Max. RPM [Max:1800; Minor Diameter:N/A; Mounting Flange:SAE C, 2 Bolt; Shaft Seal Type:Single Shaft Seal; Spline Description:N/A; Vane Function Type:Motor; Cover End RPM [Max:1800; Shaft End RPM [Max:1800; Controlled Flow Rate:N/A; Cover End Flow @ RPM:12 gal/min @ 1200 rpm, 18 gal/min @ 1800 rpm; Major Diameter [Max:N/A; Major Diameter [Min:N/A; Minor Diameter [Max:N/A; Minor Diameter [Min:N/A; Relief Valve Setting:N/A; Shaft End Flow @ RPM:42 gal/min @ 1200 rpm, 63 gal/min @ 1800 rpm; Manufacturer Part No.:4525V42A12-1AA22R; Front Outlet Port Type:4 Bolt Flange Per SAE J518C W/ English Threads; Cover End Pressure [Max:2500; Shaft End Pressure [Max:2500; GPM @ 1,800 rpm, Cover End:18; GPM @ 1,800 rpm, Shaft End:63; Outlet Port Position [Rear:135° CCW From Inlet Port; Integral Valve Configuration:N/A; Port Orientation - Cover End:Outlet 135° CCW from Inlet; Port Orientation - Shaft End:Outlet Opposite Inlet; Pressure Port Size, Cover End:1 in Code 61; Pressure Port Size, Shaft End:1 1/2 in Code 61; Displacement Cover End (cu in/revolution):2.5; Displacement Shaft End (cu in/revolution):8.4;
Hot sale for caterpillar PSV450 AP-12 excavator travel motor parts	Shaft Key:101.0 LB; Pump Series:Flange Mount; Mounting:Right Hand (CW); Shaft Length:4525V42A12-1AA22R; Shaft Dia.:3.5; Shaft Seal Type:Flange; Shaft End Flow @ RPM:5/16 in; Pressure Port Size, Cover End:22; Model No.:Standard Pilot; GPM @ 1,800 rpm, Cover End:1.25 in; Shaft Type:Straight w/ Key; Pump Series:4525V; Shaft Length:2 7/16 in; Configuration:Double; Seal Material:Buna-N; Max. RPM [Max:1800; Minor Diameter:N/A; Mounting Flange:SAE C, 2 Bolt; Shaft Seal Type:Single Shaft Seal; Spline Description:N/A; Vane Function Type:Motor; Cover End RPM [Max:1800; Shaft End RPM [Max:1800; Controlled Flow Rate:N/A; Cover End Flow @ RPM:12 gal/min @ 1200 rpm, 18 gal/min @ 1800 rpm; Major Diameter [Max:N/A; Major Diameter [Min:N/A; Minor Diameter [Max:N/A; Minor Diameter [Min:N/A; Relief Valve Setting:N/A; Shaft End Flow @ RPM:42 gal/min @ 1200 rpm, 63 gal/min @ 1800 rpm; Manufacturer Part No.:4525V42A12-1AA22R; Front Outlet Port Type:4 Bolt Flange Per SAE J518C W/ English Threads; Cover End Pressure [Max:2500; Shaft End Pressure [Max:2500; GPM @ 1,800 rpm, Cover End:18; GPM @ 1,800 rpm, Shaft End:63; Outlet Port Position [Rear:135° CCW From Inlet Port; Integral Valve Configuration:N/A; Port Orientation - Cover End:Outlet 135° CCW from Inlet; Port Orientation - Shaft End:Outlet Opposite Inlet; Pressure Port Size, Cover End:1 in Code 61; Pressure Port Size, Shaft End:1 1/2 in Code 61; Displacement Cover End (cu in/revolution):2.5; Displacement Shaft End (cu in/revolution):8.4;
4BT 6CT 6BT aluminum cylinder block for excavator	Shaft End Pressure [Max:101.0 LB; Cover End Flow @ RPM:Flange Mount; Rotation:Right Hand (CW); Shaft Key:4525V42A12-1AA22R; Minor Diameter:3.5; Mounting Flange:Flange; GPM @ 1,800 rpm, Cover End:5/16 in; GPM @ 1,800 rpm, Shaft End:22; Weight:Standard Pilot; Major Diameter [Min:1.25 in; Shaft Type:Straight w/ Key; Pump Series:4525V; Shaft Length:2 7/16 in; Configuration:Double; Seal Material:Buna-N; Max. RPM [Max:1800; Minor Diameter:N/A; Mounting Flange:SAE C, 2 Bolt; Shaft Seal Type:Single Shaft Seal; Spline Description:N/A; Vane Function Type:Motor; Cover End RPM [Max:1800; Shaft End RPM [Max:1800; Controlled Flow Rate:N/A; Cover End Flow @ RPM:12 gal/min @ 1200 rpm, 18 gal/min @ 1800 rpm; Major Diameter [Max:N/A; Major Diameter [Min:N/A; Minor Diameter [Max:N/A; Minor Diameter [Min:N/A; Relief Valve Setting:N/A; Shaft End Flow @ RPM:42 gal/min @ 1200 rpm, 63 gal/min @ 1800 rpm; Manufacturer Part No.:4525V42A12-1AA22R; Front Outlet Port Type:4 Bolt Flange Per SAE J518C W/ English Threads; Cover End Pressure [Max:2500; Shaft End Pressure [Max:2500; GPM @ 1,800 rpm, Cover End:18; GPM @ 1,800 rpm, Shaft End:63; Outlet Port Position [Rear:135° CCW From Inlet Port; Integral Valve Configuration:N/A; Port Orientation - Cover End:Outlet 135° CCW from Inlet; Port Orientation - Shaft End:Outlet Opposite Inlet; Pressure Port Size, Cover End:1 in Code 61; Pressure Port Size, Shaft End:1 1/2 in Code 61; Displacement Cover End (cu in/revolution):2.5; Displacement Shaft End (cu in/revolution):8.4;
Genuine Quality Excavator Spare Parts 207-70-72343 Bushing for Komatsu PC300-7	Manufacturer Part No.:101.0 LB; Minor Diameter [Max:Flange Mount; Mounting Flange:Right Hand (CW); Port Orientation - Shaft End:4525V42A12-1AA22R; Displacement Shaft End (cu in/revolution):3.5; Pressure Port Size, Cover End:Flange; Displacement Cover End (cu in/revolution):5/16 in; Weight:22; Shaft Length:Standard Pilot; Spline Description:1.25 in; Shaft Type:Straight w/ Key; Pump Series:4525V; Shaft Length:2 7/16 in; Configuration:Double; Seal Material:Buna-N; Max. RPM [Max:1800; Minor Diameter:N/A; Mounting Flange:SAE C, 2 Bolt; Shaft Seal Type:Single Shaft Seal; Spline Description:N/A; Vane Function Type:Motor; Cover End RPM [Max:1800; Shaft End RPM [Max:1800; Controlled Flow Rate:N/A; Cover End Flow @ RPM:12 gal/min @ 1200 rpm, 18 gal/min @ 1800 rpm; Major Diameter [Max:N/A; Major Diameter [Min:N/A; Minor Diameter [Max:N/A; Minor Diameter [Min:N/A; Relief Valve Setting:N/A; Shaft End Flow @ RPM:42 gal/min @ 1200 rpm, 63 gal/min @ 1800 rpm; Manufacturer Part No.:4525V42A12-1AA22R; Front Outlet Port Type:4 Bolt Flange Per SAE J518C W/ English Threads; Cover End Pressure [Max:2500; Shaft End Pressure [Max:2500; GPM @ 1,800 rpm, Cover End:18; GPM @ 1,800 rpm, Shaft End:63; Outlet Port Position [Rear:135° CCW From Inlet Port; Integral Valve Configuration:N/A; Port Orientation - Cover End:Outlet 135° CCW from Inlet; Port Orientation - Shaft End:Outlet Opposite Inlet; Pressure Port Size, Cover End:1 in Code 61; Pressure Port Size, Shaft End:1 1/2 in Code 61; Displacement Cover End (cu in/revolution):2.5; Displacement Shaft End (cu in/revolution):8.4;
Genuine Quality Excavator Spare Parts 707-76-65220 Bushing for Komatsu PC270-7	Major Diameter [Max:101.0 LB; Spline Description:Flange Mount; Shaft Seal Type:Right Hand (CW); GPM @ 1,800 rpm, Shaft End:4525V42A12-1AA22R; Port Orientation - Shaft End:3.5; Cover End RPM [Max:Flange; Shaft Length:5/16 in; Displacement Cover End (cu in/revolution):22; Mounting Flange:Standard Pilot; Major Diameter [Min:1.25 in; Shaft Type:Straight w/ Key; Pump Series:4525V; Shaft Length:2 7/16 in; Configuration:Double; Seal Material:Buna-N; Max. RPM [Max:1800; Minor Diameter:N/A; Mounting Flange:SAE C, 2 Bolt; Shaft Seal Type:Single Shaft Seal; Spline Description:N/A; Vane Function Type:Motor; Cover End RPM [Max:1800; Shaft End RPM [Max:1800; Controlled Flow Rate:N/A; Cover End Flow @ RPM:12 gal/min @ 1200 rpm, 18 gal/min @ 1800 rpm; Major Diameter [Max:N/A; Major Diameter [Min:N/A; Minor Diameter [Max:N/A; Minor Diameter [Min:N/A; Relief Valve Setting:N/A; Shaft End Flow @ RPM:42 gal/min @ 1200 rpm, 63 gal/min @ 1800 rpm; Manufacturer Part No.:4525V42A12-1AA22R; Front Outlet Port Type:4 Bolt Flange Per SAE J518C W/ English Threads; Cover End Pressure [Max:2500; Shaft End Pressure [Max:2500; GPM @ 1,800 rpm, Cover End:18; GPM @ 1,800 rpm, Shaft End:63; Outlet Port Position [Rear:135° CCW From Inlet Port; Integral Valve Configuration:N/A; Port Orientation - Cover End:Outlet 135° CCW from Inlet; Port Orientation - Shaft End:Outlet Opposite Inlet; Pressure Port Size, Cover End:1 in Code 61; Pressure Port Size, Shaft End:1 1/2 in Code 61; Displacement Cover End (cu in/revolution):2.5; Displacement Shaft End (cu in/revolution):8.4;
705-51-20370 Power Pump for KOMATSU D65P/EX/PX-12/D85ESS-2/D65WX-15/D70LE-12	Minor Diameter [Max:101.0 LB; Pilot Type:Flange Mount; Model No.:Right Hand (CW); Seal Material:4525V42A12-1AA22R; Cover End Flow @ RPM:3.5; Spline Description:Flange; Cover End RPM [Max:5/16 in; Pressure Port Size, Cover End:22; Minor Diameter [Min:Standard Pilot; Controlled Flow Rate:1.25 in; Shaft Type:Straight w/ Key; Pump Series:4525V; Shaft Length:2 7/16 in; Configuration:Double; Seal Material:Buna-N; Max. RPM [Max:1800; Minor Diameter:N/A; Mounting Flange:SAE C, 2 Bolt; Shaft Seal Type:Single Shaft Seal; Spline Description:N/A; Vane Function Type:Motor; Cover End RPM [Max:1800; Shaft End RPM [Max:1800; Controlled Flow Rate:N/A; Cover End Flow @ RPM:12 gal/min @ 1200 rpm, 18 gal/min @ 1800 rpm; Major Diameter [Max:N/A; Major Diameter [Min:N/A; Minor Diameter [Max:N/A; Minor Diameter [Min:N/A; Relief Valve Setting:N/A; Shaft End Flow @ RPM:42 gal/min @ 1200 rpm, 63 gal/min @ 1800 rpm; Manufacturer Part No.:4525V42A12-1AA22R; Front Outlet Port Type:4 Bolt Flange Per SAE J518C W/ English Threads; Cover End Pressure [Max:2500; Shaft End Pressure [Max:2500; GPM @ 1,800 rpm, Cover End:18; GPM @ 1,800 rpm, Shaft End:63; Outlet Port Position [Rear:135° CCW From Inlet Port; Integral Valve Configuration:N/A; Port Orientation - Cover End:Outlet 135° CCW from Inlet; Port Orientation - Shaft End:Outlet Opposite Inlet; Pressure Port Size, Cover End:1 in Code 61; Pressure Port Size, Shaft End:1 1/2 in Code 61; Displacement Cover End (cu in/revolution):2.5; Displacement Shaft End (cu in/revolution):8.4;
07433-72400 Main clutch Pump for KOMATSU D60A/P/E-8/D70-LE	Minor Diameter:101.0 LB; Shaft End Pressure [Max:Flange Mount; Shaft End Flow @ RPM:Right Hand (CW); Mounting:4525V42A12-1AA22R; Pressure Port Size, Shaft End:3.5; Spline Description:Flange; Shaft Key:5/16 in; Minor Diameter [Min:22; Mounting Flange:Standard Pilot; Minor Diameter [Max:1.25 in; Shaft Type:Straight w/ Key; Pump Series:4525V; Shaft Length:2 7/16 in; Configuration:Double; Seal Material:Buna-N; Max. RPM [Max:1800; Minor Diameter:N/A; Mounting Flange:SAE C, 2 Bolt; Shaft Seal Type:Single Shaft Seal; Spline Description:N/A; Vane Function Type:Motor; Cover End RPM [Max:1800; Shaft End RPM [Max:1800; Controlled Flow Rate:N/A; Cover End Flow @ RPM:12 gal/min @ 1200 rpm, 18 gal/min @ 1800 rpm; Major Diameter [Max:N/A; Major Diameter [Min:N/A; Minor Diameter [Max:N/A; Minor Diameter [Min:N/A; Relief Valve Setting:N/A; Shaft End Flow @ RPM:42 gal/min @ 1200 rpm, 63 gal/min @ 1800 rpm; Manufacturer Part No.:4525V42A12-1AA22R; Front Outlet Port Type:4 Bolt Flange Per SAE J518C W/ English Threads; Cover End Pressure [Max:2500; Shaft End Pressure [Max:2500; GPM @ 1,800 rpm, Cover End:18; GPM @ 1,800 rpm, Shaft End:63; Outlet Port Position [Rear:135° CCW From Inlet Port; Integral Valve Configuration:N/A; Port Orientation - Cover End:Outlet 135° CCW from Inlet; Port Orientation - Shaft End:Outlet Opposite Inlet; Pressure Port Size, Cover End:1 in Code 61; Pressure Port Size, Shaft End:1 1/2 in Code 61; Displacement Cover End (cu in/revolution):2.5; Displacement Shaft End (cu in/revolution):8.4;
07432-71200 Steering Pump for KOMATSU D60S-3	Weight:101.0 LB; Pressure Port Size, Shaft End:Flange Mount; Shaft Length:Right Hand (CW); Shaft Key:4525V42A12-1AA22R; Shaft Type:3.5; Pump Series:Flange; Cover End Flow @ RPM:5/16 in; Shaft End Flow @ RPM:22; Cover End RPM [Max:Standard Pilot; Displacement Cover End (cu in/revolution):1.25 in; Shaft Type:Straight w/ Key; Pump Series:4525V; Shaft Length:2 7/16 in; Configuration:Double; Seal Material:Buna-N; Max. RPM [Max:1800; Minor Diameter:N/A; Mounting Flange:SAE C, 2 Bolt; Shaft Seal Type:Single Shaft Seal; Spline Description:N/A; Vane Function Type:Motor; Cover End RPM [Max:1800; Shaft End RPM [Max:1800; Controlled Flow Rate:N/A; Cover End Flow @ RPM:12 gal/min @ 1200 rpm, 18 gal/min @ 1800 rpm; Major Diameter [Max:N/A; Major Diameter [Min:N/A; Minor Diameter [Max:N/A; Minor Diameter [Min:N/A; Relief Valve Setting:N/A; Shaft End Flow @ RPM:42 gal/min @ 1200 rpm, 63 gal/min @ 1800 rpm; Manufacturer Part No.:4525V42A12-1AA22R; Front Outlet Port Type:4 Bolt Flange Per SAE J518C W/ English Threads; Cover End Pressure [Max:2500; Shaft End Pressure [Max:2500; GPM @ 1,800 rpm, Cover End:18; GPM @ 1,800 rpm, Shaft End:63; Outlet Port Position [Rear:135° CCW From Inlet Port; Integral Valve Configuration:N/A; Port Orientation - Cover End:Outlet 135° CCW from Inlet; Port Orientation - Shaft End:Outlet Opposite Inlet; Pressure Port Size, Cover End:1 in Code 61; Pressure Port Size, Shaft End:1 1/2 in Code 61; Displacement Cover End (cu in/revolution):2.5; Displacement Shaft End (cu in/revolution):8.4;
excavator PC200 Final drive 20Y-27-00432 PC200-6 pc200-7 PC200-8 PC220-7 PC 300-7 PC360-7	Shaft Seal Type:101.0 LB; Displacement Cover End (cu in/revolution):Flange Mount; Shaft End Pressure [Max:Right Hand (CW); Shaft Dia.:4525V42A12-1AA22R; Seal Material:3.5; Pump Series:Flange; Major Diameter [Min:5/16 in; Port Type:22; Spline Description:Standard Pilot; Minor Diameter [Min:1.25 in; Shaft Type:Straight w/ Key; Pump Series:4525V; Shaft Length:2 7/16 in; Configuration:Double; Seal Material:Buna-N; Max. RPM [Max:1800; Minor Diameter:N/A; Mounting Flange:SAE C, 2 Bolt; Shaft Seal Type:Single Shaft Seal; Spline Description:N/A; Vane Function Type:Motor; Cover End RPM [Max:1800; Shaft End RPM [Max:1800; Controlled Flow Rate:N/A; Cover End Flow @ RPM:12 gal/min @ 1200 rpm, 18 gal/min @ 1800 rpm; Major Diameter [Max:N/A; Major Diameter [Min:N/A; Minor Diameter [Max:N/A; Minor Diameter [Min:N/A; Relief Valve Setting:N/A; Shaft End Flow @ RPM:42 gal/min @ 1200 rpm, 63 gal/min @ 1800 rpm; Manufacturer Part No.:4525V42A12-1AA22R; Front Outlet Port Type:4 Bolt Flange Per SAE J518C W/ English Threads; Cover End Pressure [Max:2500; Shaft End Pressure [Max:2500; GPM @ 1,800 rpm, Cover End:18; GPM @ 1,800 rpm, Shaft End:63; Outlet Port Position [Rear:135° CCW From Inlet Port; Integral Valve Configuration:N/A; Port Orientation - Cover End:Outlet 135° CCW from Inlet; Port Orientation - Shaft End:Outlet Opposite Inlet; Pressure Port Size, Cover End:1 in Code 61; Pressure Port Size, Shaft End:1 1/2 in Code 61; Displacement Cover End (cu in/revolution):2.5; Displacement Shaft End (cu in/revolution):8.4;
Rexroth hydraulic parts A10VSO140 pump parts A4VSO A10VSO A4VG A11V	Pressure Port Size, Cover End:101.0 LB; GPM @ 1,800 rpm, Shaft End:Flange Mount; Controlled Flow Rate:Right Hand (CW); Rotation:4525V42A12-1AA22R; Shaft Seal Type:3.5; Shaft End Pressure [Max:Flange; Shaft End Flow @ RPM:5/16 in; Relief Valve Setting:22; Pressure Port Size, Shaft End:Standard Pilot; Minor Diameter [Max:1.25 in; Shaft Type:Straight w/ Key; Pump Series:4525V; Shaft Length:2 7/16 in; Configuration:Double; Seal Material:Buna-N; Max. RPM [Max:1800; Minor Diameter:N/A; Mounting Flange:SAE C, 2 Bolt; Shaft Seal Type:Single Shaft Seal; Spline Description:N/A; Vane Function Type:Motor; Cover End RPM [Max:1800; Shaft End RPM [Max:1800; Controlled Flow Rate:N/A; Cover End Flow @ RPM:12 gal/min @ 1200 rpm, 18 gal/min @ 1800 rpm; Major Diameter [Max:N/A; Major Diameter [Min:N/A; Minor Diameter [Max:N/A; Minor Diameter [Min:N/A; Relief Valve Setting:N/A; Shaft End Flow @ RPM:42 gal/min @ 1200 rpm, 63 gal/min @ 1800 rpm; Manufacturer Part No.:4525V42A12-1AA22R; Front Outlet Port Type:4 Bolt Flange Per SAE J518C W/ English Threads; Cover End Pressure [Max:2500; Shaft End Pressure [Max:2500; GPM @ 1,800 rpm, Cover End:18; GPM @ 1,800 rpm, Shaft End:63; Outlet Port Position [Rear:135° CCW From Inlet Port; Integral Valve Configuration:N/A; Port Orientation - Cover End:Outlet 135° CCW from Inlet; Port Orientation - Shaft End:Outlet Opposite Inlet; Pressure Port Size, Cover End:1 in Code 61; Pressure Port Size, Shaft End:1 1/2 in Code 61; Displacement Cover End (cu in/revolution):2.5; Displacement Shaft End (cu in/revolution):8.4;

Hot sale for caterpillar CAT245 excavator pump parts Video

hydraulic piston, vickers hydraulics, rexroth hydraulic,hydraulic cylinder repair

Contact Us

TOKIMEC VANE PUMP LTD: Emailsales3@boya.com.sg; AddressBeiyuan District, Jinan，Shandong; Phone(Working Time)0531-8299 9953; Fax0531 -82990352

Send Now

Hot sale for caterpillar CAT245 excavator pump parts Technical Articles

Ceramic Bearing Classification and advantages Reference

All ceramic bearings are resistant to magnetic and electrical insulation, wear and corrosion resistance, oil-free self-lubricating, high temperature and high temperature resistance, and can be used in extremely harsh environments and special working...

NSK high speed precision bearing installation attention reference

High-speed precision bearings are mainly used for high-speed rotating applications with light loads. High-precision bearings, high-speed, low-temperature vibration and a certain service life are required. The support members of the high-speed electric...

YCB arc Gear Pump

I. Overview and characteristics of YCB arc gear pump: YCB arc gear pump adopts the most advanced point contact gear which is considered to be the most advanced pump in the world, that is, the double arc plus sinusoidal curve is combined into a tooth...