| MATERIAL | STEEL AND IRON |
| GENERAL CHARACTERISTICS ITEM DESCRIPTION | MATERIAL: IDLER PULLEY: DURA-BAR 65-45-12 FERRITIC DUCTILE IRON I/A/W ASTM A536; TENSILE STRENGTH: 65000 PSI; YIELD STRENGTH: 45000 PSI; ELONGATION: 12%; FATIGUE STRENGTH: 4000PSI; BALL BEARING: BEARING MATERIAL: 52100 CHROM STEEL; CASE MATERIAL: STAINLESS STEEL; SEAL MATERIAL; RUBBER |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | TENSIONER ASSEMBLY,BELT |
| OVERALL DIAMETER | 85.10 MILLIMETERS NOMINAL |
| SPECIAL FEATURES | SPRING TENSIONER: ARM TORQUE: 18.5-24, 5 N-M AT 39.6 DEGREES ROM FREE STOP; TORQUE AT FREE STOP: 8.9 N-M; SPRING RATE: 0.318 N-M/DEGREE; BALL BEARING: ANNULAR BEARING ENGINEERING COUNCIL (ABEC) GRADE 1, SINGLE ROW DEEP GROOVE, RADIAL BALL BEARING, CONRAD TYPE, UNFLANGED; GREASE FILLED WITH CONTACT SEALS BOTH SIDES; STATIC LOAD: 4582 N (1030 LBF) MAXIMUM |
| SPECIAL TEST FEATURES | OUTSIDE DIAMETER: 85.1MM; EFFECTIVE DIAMETER: 83MM |
| SPECIFICATION/STANDARD DATA | 05047-ASME Y14.100 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD AND 96906-MIL-STD-130, METHOD OPTIONAL GOVERNMENT STANDARD |