A steering gear has no fixed replacement interval, because it may be affected by multiple factors, including vehicle conditions, mileage, road conditions, and maintenance status. The service life of a typical steering gear can reach hundreds of thousands of kilometers, but premature replacement may be necessary in the following circumstances:

Abnormal noise: If the steering gear generates abnormal noise, such as click or creak, there may be an internal fault of the steering gear that necessitates replacement of the gear.

Unsensitive steering: If the steering operation becomes insensitive, the steering wheel requires greater-than-usual force for turning, or the steering angle is unstable, the steering gear may have a problem and needs to be repaired or replaced.

Oil leakage: If hydraulic power failure or depletion of hydraulic oil occurs due to oil leakage of the steering gear, the steering operation will become extremely difficult. In this case, it is necessary to check the sealing of the steering gear and replace it in a timely manner.

Severe wear: Key parts of the steering gear, such as gears and bearings, may wear out with increasing use time and mileage. In the case of severe wear, it may be necessary to replace the steering gear.

In short, if the steering gear is abnormal, difficult to operate or unstable, the car should be immediately sent to a professional car maintenance shop for inspection, and replacement or repair should be done as advised by the technicians. Checking the lubrication and fastening of the steering system regularly is also an important measure to ensure the normal operation of the steering gear.

Advantages of vika steering gear:

1. Aluminum shell
Material: ZL111 aluminum alloy: superior casting quality, elimination of heat crack, small linear shrinkage, and high airtightness

2. Valve plug:
Material: 40Cr
Process: Produced with a machining center,  high precision, top quality, and accurate valve core size.
Properties: The high surface precision guarantees smooth operation and helps prevent oil leakage.  

3. Wheel gear:
Material: 40Cr
Process: Magnetic inspection is performed to identify any defect such as crack in the material after quenching, thus ensuring high quality of the product.
Properties: The gear is subject to surface sandblasting treatment for higher mechanical performance.

4. Valve bush:
Material: 45# steel
Process:
·high-frequency quenching
·The inner hole is honed in three steps, thus ensuring compliance with requirements for internal roundness and roughness.
·Post-processing surface sandblasting treatment eliminates burr.
Properties: The benefits include a clean internal structure, unblocked oil paths, and well controlled operation angle that leads to accurate operation time during steering.

5. Oil seal:
Japan-based NOK, it always provides oil seals with top-grade oil resistance and sealing performance.

6. Gear rack:
Material: 40Cr
Process: Multiple rounds of straightening contribute to a high level of gear rack linearity and dependable operation of the steering rack.
Properties: The high processing precision leads to smoother steering and lower steering wear.