Series selection hub

Choose by adjustment method and duty

Special combined bearings solve applications that cannot be approved from a standard outside diameter alone. Compare the existing mounting arrangement first: eccentric adjustment sets clearance through the stud, screw-adjustable supports move the axial roller externally, shim-adjustable supports use calibrated washers, and HT executions require temperature-specific lubrication and sealing.

Adjustable clearance

Use PR4 eccentric or MR.96 screw-adjustable families when installation requires controlled axial setting. Confirm the adjustment range and locking method.

Temperature duty

Use the 4.054HT–4.063HT family only after the actual bearing temperature, grease, seals and relubrication plan are defined.

High axial load

MR.142 and MR.146–MR.154 use a separate hardened axial support. Verify its geometry and washer stack against the application drawing.

Information required before quotation

  • Complete bearing model, suffix and every visible marking
  • Radial roller diameter, stud or bore size, overall height and axial-support position
  • Matched steel profile or mounting drawing
  • Radial and axial load, speed, shock, duty cycle and temperature
  • Quantity, inspection documents and destination country

Download technical tables or submit the model and drawing for review.

Special combined bearing FAQ

Which combined bearing series allows axial adjustment?

Eccentric PR4 models, MR.96 screw-adjustable models and 4.078 / 4.0784 shim-adjustable models use different adjustment methods. Select the series from the existing mounting geometry and controlled drawing.

How is an HT combined bearing selected?

Confirm the base model, actual bearing temperature, grease, seals and relubrication interval. The HT suffix alone does not define the complete temperature capability.

When is a high-load axial-support bearing required?

Use the high-load family when the application has a separate hardened axial support and higher side-load demand. Confirm the support geometry, shims and radial and axial load case.

What should be supplied for replacement verification?

Send the full model, marking photos, main dimensions, profile or mounting drawing, quantity, load, speed, temperature and destination.

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