Guide Wheel, Bearing Protection Sealed, Shielded, For Use With Track, Lubrication Klubersynth UH1 14-151, Maximum Load Axial 382 lbf, Maximum Load Radial 1,326 lbf, Size 3, System of Measurement Inch, Series DualVee, Wheel Material Carbon Steel, Maximum Operating Temperature 212 Degrees F, Minimum Operating Temperature -22 Degrees F, Vee Angle 90 Degrees