6903RS Double Sealed Ball Bearing
17mm ID – 30mm OD – 7mm Wide

This 6903RS is a deep groove ball bearing built with chrome steel for durability and performance. With dual rubber seals and pre-greased internals, its designed to keep contaminants out while spinning smooth and quiet. Great for industrial machines, commercial tools, and hobby builds.

Type: Deep groove ball bearing
Inside diameter: 17mm
Outside diameter: 30mm
Width: 7mm
Material: Chrome steel (52100 alloy)
Cage: Chrome steel
Closures: Double rubber seals
Lubrication: Pre-lubricated with grease
Dynamic load rating: 4,600 N
Static load rating: 2,550 N
Max speed with grease: 15,000 RPM
Quantity: 1 bearing
Markings: 6903RS / 61903RS
Also known as: 6903-2RS1, 6903-2RZ, 61903-2RS1

Why choose rubber-sealed bearings for machines and gear systems?

Rubber seals give better protection against moisture and