Brand Koyo (JTEKT) Item Number 6308TPT4 C5 Koyo (JTEKT) Category Deep Groove Ball Bearings Single Row Weight and Dimensions Inner (d) MM 40 Outer (D) MM 90 Width (B) MM 23 Inner (d) Inch 1.5748 Outer (D) Inch 3.5433 Width (B) Inch 0.9055 Weight (kg) 0.633 Product Properties Bore C - Cylindrical Bore Seal No Seal Cage Type P - Plastic Molded Cage External Modification No External Modification Radial Internal PlayC5 Internal Play (Higher than C4) Precision Standard Precision LubricationStandard Lubrication Heat StabilizationNo Heat Stabilization - Temperatures up to 120 °C Special TreatmentNo Special Treatment