Product Description
Webb 61870B 18 x 7 Balanced Heavy-Duty Outboard Brake Drum
The Webb 61870B is an 18 x 7-inch balanced cast-iron brake drum with an outboard mounting configuration. It uses an 11.25-inch pilot, 13.19-inch bolt circle, and 10 mounting holes measuring 1.19 inches in diameter.
The 61870B is a notably large heavy-duty drum, weighing approximately 147 lb. Its 18-inch brake surface, large pilot, and 13.19-inch bolt circle make the mounting dimensions particularly important when identifying the correct drum.
Part Number: 61870B
Base Part Number: 61870
Product Type: Heavy-Duty Brake Drum
Brand: Webb
Brake Size: 18 x 7 in.
Brake Surface Diameter: 18.00 in.
Brake Shoe Width: 7.00 in.
Brake Surface Flat: 7.38 in.
Overall Depth: 10.37 in.
Mounting Type: Outboard
Material: Cast Iron
Balance: Balanced
Pilot Diameter: 11.25 in.
Bolt Circle Diameter: 13.19 in.
Bolt Holes: 10
Bolt Hole Diameter: 1.19 in.
Back Plate Thickness: 0.62 in.
Maximum Wear Diameter: 18.24 in.
Approximate Weight: 147 lb
Eaton Cross Reference: 974157
Inventory Description: DRUM
Before ordering, confirm Webb 61870B or a verified interchange and compare the 18 x 7 brake size, 11.25-inch pilot, 13.19-inch bolt circle, 10-hole pattern, 1.19-inch mounting holes, 10.37-inch overall depth, and outboard mounting configuration with the existing drum.
