4R-B87 Conventional V-Belt Banded - 4 Ribs - MBL (USA) Mfg - Type B V-Belt Dacromet Plated All Ultra Series 81X is

All Ultra Series 81X is built using full radius

‬11-5/8" C ‬4-3/8" D ‬1-3/4" F 2-3/8" H 8-15/32" J 4-1/2" L 6-1/8" Number of Holes 2 Bolt Dia

Includes a variety of sizes of Rigid Male Adapters

675 pieces total

Comes in metal locking Durham tray fully labeled and organized

4R-B87 Conventional V-Belt Banded - 4 Ribs - MBL (USA) Mfg - Type B V-Belt Dacromet Plated All Ultra Series 81X isClassical Banded V Belt Type B Cross Section 4 Ribs Belt Code: 87 MBL (USA) Mfg Conventional V Belts are a heavy duty power transmission belt, which has heat, oil and flex resistance as well as a high antistatic property. Designed for tough applications where multiple drive belts are subject to heavy shock and pulsating loads. Banding prevents belt whip, belt turnover, vibration and jumping off that may occur with single belts in multiple drive