Power Steering Gear Box for Heavy Duty Truck

• Customization: Available
• After-sales Service: Yes
• Warranty: 3 Years
• Model NO.: 525
• Type: Steering Gears/Shaft
• Material: Steel
• Certification: ISO, AISI, DIN, API, CE, ASTM, JIS, GB, BS, DOT
• Automatic: Manual
• Standard: Standard
• Condition: New
• Application: GM Chevy
• Structure: Recirculating Ballnut and Worm Shaft
• Transport Package: in Export Carton with Plywooden Pallets
• Specification: SAGINAW 525
• Trademark: DDB, CIE
• Origin: China, Zhejiang
• HS Code: 87089460
• Production Capacity: 5000PCS/Month

Product Description

1991 GM MANUAL STEERING BOX,SAGINAW 525 GEAR BOX,CHEVY,OLDS,PONTIAC

Mini order quantity is available such as 50/100pcs from stocks
 

The ball screw assembly  steering gears consists of a screw and a nut, each with matching helical grooves, and balls which roll between these grooves between the nut and the screw when the nut or screw is rotating. The balls are deflected by the deflector into the ball return system of the nut and they travel through the return system to the opposite end of the ball nut in a continuous path, and exit from the ball return system into the ball screw and nut thread raceways continuously to recirculate in a closed circuit. 
 

The ball nut assembly: Ball nut determines the load and life of the ball screw assembly.

The ratio of the number of threads in the ball nut circuit to the number Of threads on the ball screw determines how much sooner the ball nut will reach Fatigue failure (wear out) than the ball screw will. Ball nuts are manufactured With two types of return systems.

The integral steering gear uses a recirculating ball gearbox along with a pitman arm to steer the vehicle to the left or right.
Common signs of wear include sloppy steering feel, and reduced steering responsiveness
An integral power steering gear having a primary or input shaft, a secondary shaft, a valve mechanism and a power piston, all mounted on a single housing in axial alignment with one another. The power piston is movable axially relative to the valve mechanism and has a hollow formed therein which receives at least a portion of the valve mechanism depending upon the relative axial position of the power piston and the valve mechanism. The valve mechanism is located in one of the two pressure chambers located on the opposite sides of the power piston.

Other relative steering gear parts for a reference:

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