1/2 x 1 1/8 in. R8RS Precision Wheelchair or Scooter Bearing
Item #:
B50
The 1/2 x 1 1/8 in. R8RS Precision Wheelchair or Scooter Bearing is commonly used on the rear wheels and caster barrels of many wheelchairs from Quickie, Top End, TiLite, Colours, plus others. One of our most common wheelchair bearing sizes.
1/2 x 1 1/8 in. R8RS Precision Wheelchair or Scooter Bearing
Maintenance free design and pre-greased
High quality double shielded design keeps grease in and contaminants out
Replacement for bearing reference number R8RS
Inside diameter (bore) 1/2" (.50)
Outside diameter 1 1/8" (1.1250)
Width (thickness) 5/16" (.3125)
Sold individually (each)
1/2 x 1 1/8 in. R8RS Precision Wheelchair or Scooter Bearing Fitment Notes
Many wheelchairs from Quickie (Sunrise part 349500), TiLite, Colours and Top End (Invacare) use this bearing on the rear wheels of their manual wheelchairs. It is also used as the caster fork stem bearing on many sport wheelchairs (both upper and lower). Also fits many wheelchair rims from Spinergy and X-Core. Your existing bearing should have one of these alpha numeric numbers stamped on the shield of the bearing: R8RS, R8, R8Z or R8ZZ. It is highly advisable to measure the inside diameter of your existing bearing if the reference number is R8 or R8RS and make sure it is 1/2" as R8 or R8RS bearings are also available with 7/16" or 12 mm inner diameters with the same outside dimension of 1 1/8".
This 1/2 x 1 1/8 in. R8RS Precision Wheelchair or Scooter Bearing can be used as a replacement for the following manufacturer part numbers:
Sunrise Medical (Quickie) 349500
TiLite HD100011
Invacare 40117X021
TAG RP155013PK
KI Mobility 100902
Motion Composites 22011
General Wheelchair and Scooter Bearing Notes
Many bearings found on wheelchairs and scooters have a alpha numeric reference or just a numeric reference number stamped on the side of the bearing which refers to the type and size of the bearing. In most cases, that is all you need to purchase the correct bearing. For alpha numeric reference numbers ending in Z, ZZ, RS, or 2RS, they are all interchangeable (Z and ZZ refer to a metal outer side shield and RS and 2RS refer to a rubber outer side shield protecting the balls inside the bearing). If your bearing has no reference on it, you will have to measure. If the bearing reference appears worn off, you may be able to see it stamped on the other side.
1/2 x 1 1/8 in. R8RS Precision Wheelchair or Scooter Bearing
Great quality bearing, January 19, 2023 By David B (Columbus, OH)(Verified)
same bearings I took off the old wheel and caster fork. The price is reasonable and the reason I bought. The package arrived in 3 days from California (they were shipped the day I bought them).
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