Where JTEKT Koyo supports buyers

Compare integrated hub units and serviceable bearings within the vehicle application. Integrated assemblies can reduce field assembly steps. A serviceable bearing can make sense where the shop has the correct tools, seating method and bearing preload procedure. Check hub flange, ABS encoder orientation and connector geometry. Use vehicle service information to confirm the mounting torque and fastening sequence for the exact configuration.

For alloy wheel procurement, match rim diameter, rim width, pitch circle diameter (PCD), wheel offset (ET), center bore, finish and load rating. Compare forging and casting on drawing, target weight, brake clearance, sample costs and test scope. For tire orders, confirm load index, speed rating, tread depth, tread pattern and duty. Compare rolling resistance with wet grip and wear under the same stated test conditions and application.

For a market-specific wheel or tire program, ask which report or approval applies to the exact SKU and market before adding it to the comparison. A management-system certificate and a product report answer different questions.

Ask the supplier for a marked sample and its revision drawing. Before inspection, agree the measurements, instruments, tolerance and sample selection. For a hub, record flange runout against the drawing datum and compare the wheel speed sensor or ABS encoder configuration with the buyer’s reference. Record exceptions with the sample ID and disposition. These checks resolve a specific part and lot under the agreed scope.