Needle Roller Bearing, Bearing Industry Number 810, Bearing Design HK, Bore Diameter 8 mm, Cage Material Steel, Closure Open, Compatible Ring Manufacturer Part Number IR5X8X12-XL, Full Complement No, Lubricant Material Grease, Oil, Maximum Speed 17,700 RPM Grease, 29,500 RPM Oil, Maximum Temperature 140 Degrees C, Minimum Temperature -30 Degrees C, Needle Bearing Type Drawn Cup Needle Roller Bearing, Number of Rows One, Outside Diameter 12 mm, Overall Width 10 mm, Ring Material Alloy Steel