For Engineers

For Engineers

Engineers who need technical information about our products can rely on this collection of calculators, product selection search tools and other resources.

Bearing-Related Resources

Find bearings using part numbers or dimensional constraints

Enter a cone (inner ring) or cup (outer ring) part number or a single series number or minimum and maximum physical constraints (bore, OD, width, rating, etc.) and other requirements to find Timken part numbers matching your constraints.

Bearing Dimensional Tolerances

Enter a cone (inner ring) or cup (outer ring) part number to look up the bearing's dimensional tolerances.

Bearing Periodic Frequencies

Enter a bearing part number to calculate the sound frequencies of the bearing at any specified RPM.

Bearing Life

Enter a bearing part number and loads to calculate the life of the bearing.

Find Bearing Assemblies

Enter a bearing component part number to view a list of all bearing assemblies containing that component.

Housed Unit Interchange Program

Find the corresponding Timken part number for another manufacturer's housed unit.

Automotive Aftermarket Quick Reference Catalog

Enter your vehicle make, model and year to find the right Timken replacement bearing part numbers.

Steel-Related Resources

Steel Theoretical Footweight Calculator

Enter the diameter, wall thickness and other parameters to calculate the approximate weight per foot of steel tube.

Practical Data for Metallurgists

This handbook lists standard steels, their chemical compositions, hardening abilities and tolerances.

Guide to Seamless Tubing

This guide includes markets we serve, processes offered, shapes, as well as other tubing-related data.