• XCMG Orbitrol Steering Valve 803089848, Bulk Inquiry Welcome
  • XCMG Orbitrol Steering Valve 803089848, Bulk Inquiry Welcome
  • XCMG Orbitrol Steering Valve 803089848, Bulk Inquiry Welcome
  • XCMG Orbitrol Steering Valve 803089848, Bulk Inquiry Welcome
  • XCMG Orbitrol Steering Valve 803089848, Bulk Inquiry Welcome
  • XCMG Orbitrol Steering Valve 803089848, Bulk Inquiry Welcome
  • XCMG Orbitrol Steering Valve 803089848, Bulk Inquiry Welcome
  • XCMG Orbitrol Steering Valve 803089848, Bulk Inquiry Welcome

XCMG Orbitrol Steering Valve 803089848, Bulk Inquiry Welcome

This Steering Unit 803089848​ is a control component in the hydrostatic steering system, with the user-provided associated model being the BZZ series (BZZ-100). The BZZ-type hydrostatic steering unit mainly consists of a servo valve, cycloidal pin-wheel clutch pair, coupling shaft, drive pin, spring plate, and check valve, with the standard product rated pressure typically not less than 16 MPa. Applicable models, function type (open-center/closed-center/load-sensing), spline parameters, and mounting interfaces should all be confirmed against the nameplate, drawings, or sample before ordering.
$88.00
Xuzhou Hengming Machinery Equipment Co., Ltd.

Xuzhou Hengming Machinery Equipment Co., Ltd.

Main Products: Full range of XCMG original spare parts
View Supplier
Year Established Established in 2008
Main Products Full range of XCMG original spare parts
Employees Less than 50 People
Factory Area 1,000-5,000 m²
Annual Revenue US$1 Million - US$5 Million
Main Markets Europe / Middle East & North Africa / Africa
Details
Specifications
Trade Information

A hydrostatic steering unit (also called orbitrol, steering valve, or steering control unit) is the core control element in a hydrostatic steering system. Mounted inside the cab and connected to the steering wheel, it receives the driver's steering-wheel torque input through a splined input shaft, proportionally distributing hydraulic oil flow to the steering cylinders to achieve machine steering. The BZZ-type hydrostatic steering unit mainly consists of a servo valve, cycloidal pin-wheel clutch pair, coupling shaft, drive pin, spring plate, and check valve; the valve spool connects directly to the steering column to control oil flow direction, while the rotor and stator form a pair of internal-mesh cycloidal pin-wheel gears that act as a metering motor during power steering—ensuring oil flow into the steering cylinder is proportional to the steering-wheel angle—and function as a manual oil pump during manual steering.

The BZZ series steering units can be differentiated along multiple dimensions by model code:

  • Displacement class: specifications such as 80, 100, 125, 160, 200, 250, 320, 400, 500, 630, 800, 1000 mL/r, etc.;

  • Function code: 1=open-center non-reaction, 2=open-center reaction, 3=closed-center non-reaction, 5=load-sensing;

  • Mounting style: A=long spigot cross-block mounting, B=SAE involute spline mounting, C=short spigot cross-block mounting.

Per the current industry draft standard JB/T 5120.1, the rated pressure of hydrostatic open-center steering units is not less than 16 MPa, the T-port pressure rating is not less than 4 MPa, and they must demonstrate good mechanical resistance torque, power-steering performance, sealing, and durability (no fewer than 400,000 power-steering cycles). The BZZ-series common type is suitable for various steering systems including tractors, loaders, and road rollers, making it the mainstream choice for heavy-equipment hydraulic steering.

Material code:
803089848
Material Description:
BZZ-100 steering gear (spline)
MOQ
1 Pieces
  • XCMG Orbitrol Steering Valve 803089848, Bulk Inquiry Welcome
  • XCMG Orbitrol Steering Valve 803089848, Bulk Inquiry Welcome
  • XCMG Orbitrol Steering Valve 803089848, Bulk Inquiry Welcome
  • XCMG Orbitrol Steering Valve 803089848, Bulk Inquiry Welcome

Description

A hydrostatic steering unit (also called orbitrol, steering valve, or steering control unit) is the core control element in a hydrostatic steering system. Mounted inside the cab and connected to the steering wheel, it receives the driver's steering-wheel torque input through a splined input shaft, proportionally distributing hydraulic oil flow to the steering cylinders to achieve machine steering. The BZZ-type hydrostatic steering unit mainly consists of a servo valve, cycloidal pin-wheel clutch pair, coupling shaft, drive pin, spring plate, and check valve; the valve spool connects directly to the steering column to control oil flow direction, while the rotor and stator form a pair of internal-mesh cycloidal pin-wheel gears that act as a metering motor during power steering—ensuring oil flow into the steering cylinder is proportional to the steering-wheel angle—and function as a manual oil pump during manual steering.

The BZZ series steering units can be differentiated along multiple dimensions by model code:

  • Displacement class: specifications such as 80, 100, 125, 160, 200, 250, 320, 400, 500, 630, 800, 1000 mL/r, etc.;

  • Function code: 1=open-center non-reaction, 2=open-center reaction, 3=closed-center non-reaction, 5=load-sensing;

  • Mounting style: A=long spigot cross-block mounting, B=SAE involute spline mounting, C=short spigot cross-block mounting.

Per the current industry draft standard JB/T 5120.1, the rated pressure of hydrostatic open-center steering units is not less than 16 MPa, the T-port pressure rating is not less than 4 MPa, and they must demonstrate good mechanical resistance torque, power-steering performance, sealing, and durability (no fewer than 400,000 power-steering cycles). The BZZ-series common type is suitable for various steering systems including tractors, loaders, and road rollers, making it the mainstream choice for heavy-equipment hydraulic steering.

RFQ