Bearing Insulation Coating Service
Add electrical insulation to the bearings you trust.
Send TFL the original bearings you’ve chosen from your preferred brand or bearings already made to your specifications. We assess suitability, apply an electrically insulating ceramic coating to eligible bearings, and return them after inspection.
Bearings You Can Send Us
You need a specific brand or model
Your team has chosen an original bearing from a brand it trusts. You need to add electrical insulation to that exact model.
Share the brand, full part number and application. If the bearing is suitable, we apply a ceramic insulating coating to the bearing you supply, then inspect and return it.
You already have a custom bearing
Your bearing was made to fit your equipment. The coating adds thickness, so the finished bearing still needs to meet your specified mounting dimensions and tolerances.
Send your drawing or key dimensions and tolerances. Before coating, we confirm which ring surfaces we can coat and which finished tolerances we can meet.
Original Timken bearings sent for insulation coating
A customer chose original Timken bearings because they trusted the brand’s bearing quality. They sent their own bearings to TFL to have an electrically insulating coating applied.
Customer selects and supplies original Timken bearings
Top view of a bearing in clear wrapping, showing the light gray outer ring
How It Works
Send your bearing details
Share the part number, condition, quantity and application. Add photos or a drawing if available.
Ship your bearings to TFL
After we confirm the coating plan, follow our shipping instructions to send us the bearings you want coated.
We inspect and coat the parts
On arrival, we verify the parts’ condition and proceed with the agreed coating work.
We check and return your bearings
We perform the agreed inspections and electrical checks, then pack and return your bearings.
What we review before coating
We apply plasma-sprayed aluminum oxide ceramic to selected bearing ring surfaces. The bearing design and mounting fit guide whether outer-ring or inner-ring coating is suitable. Share your required tolerances and electrical test criteria before we quote.
General FAQ
Find quick answers to common inquiries about our technology, product compatibility, and ordering process.
Share the drawing or key dimensions, mounting tolerances and intended application. We’ll review the design and insulation requirements.
Need TFL to Supply the Bearing?
Custom Insulated Bearings
Standard Electrically Insulated Bearings
Looking for a standard model? Browse our electrically insulated ball and roller bearings by type and size.
