VXB Pack of 16 pieces 3/8" Bore V Groove Guide Bearings:Shielded RM2ZZ W2 W2ZZ NW2 Inner Diameter 0.375 inch Go to amazon.com Related posts Top recommendation for bearings v groove DescriptionVXBTM Brand, Item: RM2-2RS Bearing, Brand Name: VXB Type: V/W Groove Guide Bearing, Quantity: Set of 16 bearings Load Rating Dynamic C: 8,260 N, Load Rating Static Co: 2,650 N, Limiting Speed: 6,500 RPM