Railbound Manganese Frogs

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RAILBOUND MANGANESE FROGS A Railbound Manganese Steel Frog is constructed with a manganese-steel body casting. This casting is fitted into and between four rails that are specially fabricated from standard tee rails. The assembly is fastened with heat-treated bolts. This type of frog is used for heavy and/or high-speed main line service, where the traffic is approximately equal on both sides of the frog. Standard AREMA Frog Lengths Rails 112 lb. or Heavier Frog No. 6 7 8 9 10 11 Total Length 11’0” 12’0” 13’0” 16’0” 16’6” 18’8-1/2” Toe Length 3’9” 4’8-1/2” 5’1” 6’4-1/2” 6’5” 7’0” Toe Spread 7” 7-9/16” 7-1/8” 8” 7-3/16” 7-1/8” Heel Length 7’3” 7’3-1/2” 7’11” 9’7-1/2” 10’1” 11’8-1/2” Heel Spread 14-15/16” 13” 12-3/8” 13-5/16” 12-5/8” 13-1/4” Quantities of Hook Twin Tie Plates Frog 6 7 8 9 10 11 L23 4 4 6 8 10 10 5-1/2”Base Rail L27 L31 LR23 8 2 2 10 2 2 10 2 2 10 2 2 10 2 2 12 2 4 6” Base Rail L31 LR23 2 2 2 2 2 2 2 2 2 2 2 4 LR27 2 2 4 4 4 2 LR31 2 2 2 2 2 2 Frog 6 7 8 9 10 11 L23 4 6 6 8 10 10 L27 8 10 10 10 12 14 LR27 2 2 4 4 4 2 LR31 2 2 2 2 2 4 www.HarmerSteel.com sales@harmersteel.com © 2007 (503) 286-3691 FAX (503) 286-2097 V–5