Description
The 6303-2RS is one of the most widely used bearings in the metric range, and the 17x47x14mm is a very common size with lots of applications, alternators, pumps, small motors, motors and more. It’s a standard part, so any 6303-2RS from any manufacturer will physically interchange with the one you’re replacing.
The 2RS suffix means contact seals on both faces. These keep grease in and dirt and moisture out, which is what you want anywhere the bearing is exposed rather than sitting inside a sealed housing. It’s the reason 2RS is the usual choice over a ZZ metal-shielded version outdoors or in dusty conditions. The bearing arrives greased and sealed for life — no packing or servicing needed before fitting.
You may see this bearing listed as 6303 2RS, 6303RS, 6303-RS or 6303 2RS1 depending on the brand. They all describe the same 17x47x14mm rubber-sealed bearing.
Every bearing is stocked here in the UK and shipped from our own unit. If you’re unsure whether this is the right size, measure the bore, outer diameter and width of your old bearing and check them against our size chart, or give us a call before you order.






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