Hardened Crown Roller Rail, Overall Length 12 in, Overall Width 1.655 in, Overall Height 0.875 in, Rail Material Steel, Agency Compliance -, Dimension B1 -, Dimension F1 -, Dimension F2 -, Dimension G1 -, Dimension G2 -, Dimension J1 -, Dimension S3 -, Dimension X -, Dimension Y1/Y2 -, For Use With Hardened Crown Roller Bearing, Includes -, Maximum Operating Temperature 248 Degrees F, Minimum Operating Temperature 0 Degrees F, Mounting Hole Center to Center -, Mounting Hole from Shaft End -