1. WEAR & FRICTION MONITOR 2. FOUR BALL TESTER 3. SLURRY ABRASION TESTER 4. DRY ABRASION TESTER 5. SCRATCH TESTER 6. MUILTI TRIBO TESTER 7. BEARINGS & COMPONENT TEST RING 8. RECIPROCATORY WEAR & FRICTION MONITOR 9. COAL ABRASION INDEX TESTER