taper roller bearings 31309 in stock Metric taper roller bearing priced cup & cone together 45mm inside x 100mm outside x 27.25mm width 1. High accuracy, High speed 2. ISO 9001:2000 3. Can be customized according to your needs 4. Can provide small & miniature standard and non-standard ball berings 5. Reasonable price 6. Technology: low vibration, low noise, high precision and durability OEM Service Offered, Design Service Offered, Buyer Label Offered