Couplers, Pin & Block U-Joints & Mil-Spec Mil-Specification Universal Joints These Universal Joints are similar to military specification joints for aircraft and have become the select choice of drag racers due to their lightweight design. A lubricant-filled silicone boot provides maintenance-free operation for extended universal joint life. This boot is designed to operate under high temperature conditions, with a continuous rating of 650°F. Please note nominal size is the outside diameter. Not intended for street use. Part No. Description Part No. Description FR1940 3/4” x 9/16”-26 FR1944 3/4” x 3/4”-30 FR1941 3/4” x 3/4”-36 FR1945 3/4”-DD x 3/4”-DD FR1942 3/4”-36 x 3/4”-36 FR1946 3/4” x 3/4”-DD FR1943 3/4” x 5/8”-36 FR1948 3/4” x 11/16”-36 Part No. Nominal Size O.D. O.D. “A” +.000 - .002 I.D. “G” + .004- .001 Max Dia. “J” +1/64 Length “B” +/- 1/ Max “C” Min “D” FR1800B8 1/2” .495 .375 29/32 2-5/16” 5/8” 11/16” FR1800B10 5/8” .620 .500 1-3/32” 2-3/4” 3/4” 13/16” FR1800B12 3/4” .745 .625 1-1/32” 3-3/16” 7/8” 15/16” FR1800B14 7/8” .870 .750 1-1/2” 3-5/8” 1” 1-1/16” “H” +/- 1/64 Wt. (Lbs.) Min. Ult. Static Torque (In Lbs.) Axial Tension & Comp. (Lbs.) Tensional Play Max Degrees Endurance torque Test (In. Lbs) FR1800B8 9/16” .079 675 1,000 0.62 90 FR1800B10 11/16 .133 1,200 1,500 0.50 162 FR1800B12 13/16 .212 2,100 2,000 0.42 285 FR1800B14 15/16 .314 3,500 3,500 0.36 450 IMPORTANT: This is a lightweight application that is not designed for circle track, street, or highway use and not recommended for steering. Please see inch Lbs. Torque rating listed in the chart above to determine if this is suitable for your application. Ideal for shifter linkage. Steering Couplers Couplers are available for direct steering connections where an angle is not required. Couplers can also be used to extend the steering shaft. Overall length is 2” with an outside diameter of 1” (except FR1942, which is 1-1/4”). Steel Pin and Block Universal Joints The preferred choice of drag racers for their sleek and lightweight design. These are available in both 1-1/4” and 1” diameter designs. Note: For racing applications only – NOT recommended for street use. Frequent lubrication required. Part No. Description O.D. FR1900 3/4” x 3/4” 1-1/4” FR1901 3/4” x 9/16”-26 1-1/4” FR1902 3/4” x 3/4”-36 1-1/4” FR1903 3/4” x 3/4”-30 1-1/4” FR1904 3/4” x 5/8”-36 1-1/4” FR1905 9/16”-26 x 3/4”-36 1-1/4” FR1906 3/4” x 13/16”-36 1-1/4” FR1907 5/8”-36 x 7/8” 1-1/4” FR1820 3/4” x 3/4” 1” FR1821 3/4” x 9/16”-26 1” FR1822 3/4” x 5/8”-36 1” Not For Street Use 100
FlamingRiver_2017Catalog
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