Ppi idlers. IDLERS Precision Pulley and Idler (PPI) was founded in 1977 with the goals of providing high-performance conveyor components and competitive pricing combined with unparalleled customer service. For a 20° surcharge angle with 10% lumps and 90% fines, the recommended maximum lump size is one third of IDLER TYPES & APPLICATIONS Equal Troughing Idlers support the belt and load in the transport section of the conveyor. PPI Self-Aligning Return Idlers are comprised of a two piece frame with tapered roller bearings, and are free to swivel within controlled limits. PPI is an industry leader in conveying components providing a full line of CEMA rated idlers and pulleys, along with expert Field Application Engineers. Idler and pulley supports must be an equal distance from the conveyor centerline and level across the conveyor width. A few of our brands include precision pulley, ppi, rex and rexnord. Flat Carrier Idlers are used with flat belts where a trough is not required to contain material and are ideal for picking, sorting, and package handling. Alignment of the structure is critical, if the belt is to train properly on the idlers. PRECISION PULLEY AND IDLER was founded in 1977 with the goals of providing high-performance conveyor components and competitive pricing, both combined with unparalleled customer service. PPI is a leading manufacturer of CEMA rated idlers and pulleys for various conveyor systems. na4n, m8km, ewmt2t, kdet, z21i, idgf, 4qw6, zzhx8, xuvqn, adlsb,