6903RS1 Sealed Ball Bearing 17x30x7mm6903RS1 Sealed Ball Bearing 17mm x 30mm x 7 mm 6903RS1 Sealed Ball Bearing, inner diameter is 17mm, outer diameter is 30mm and width is 7mm, 6903RS1 is a popular size that could be used in many applications, Bearing is made of Chrome Steel, 6903RS1 bearing has 2 built in rubber seals to protect the bearing from dust or any possible contamination, 6903RS1 bearing is pre lubricated with grease. Item: 6903RS1 Ball Bearing Type: Deep Groove Ball Bearing