


Technical support is not a slogan here. Five pages answer the five questions that come up most often: how to read a code, how to cross a competitor’s model, whether a non-standard duty can be met, how to mount it without damage, and where the source data lives. Each page is a table or a tool you can use straight away, not an introduction.
These six come up most often in sales and engineering conversations. Every answer carries a direct link to the page that holds the data, so there is nothing to hunt for.
The base code (for instance UC) defines the basic structure — spherical or plain outer ring, and how the inner ring locks. Each segment after a / describes the lubrication hole, surface treatment, seal type or set-screw finish. The full rules are on the Z&R Code Explanation page.
For the common sizes we have a cross reference — Model Conversion currently lists 28 entries. Note that with identical envelope dimensions the internal design, seal type and tolerance class can still differ between brands: a cross reference answers “will it fit”, not “will it last”. For demanding duties, confirm with our engineers before ordering.
Yes. Send the duty — shaft diameter, speed, load, working temperature, medium — and we return a feasibility judgement and a recommended design, normally within one working day. Details on Product Development And Customization.
Three things: the mounting surface must be flat to 0.15 mm or better; never strike the bearing directly with a metal hammer; and locking bolts must be used with washers and tightened to the recommended torque. Step-by-step instructions are on Installation Guidance.
Full catalogues are downloadable from Directory Download. If you need 2D/3D drawings or a selection calculation for a specific model, just email us.
No. Everything on this site is open and downloads directly.
Describe the application — speed, load, shaft diameter, working temperature, whether water or dust gets in — and our engineers will come back within one working day with a selection recommendation and a cross reference.