Optibelt Triangle Triangle series regular, without teeth: 
 A: K band: Belt wide: (7.6mm ~ 8mm), thickness of 6MM, length 11 inches to 70 inches, the 280mm ~ 1780mm 
 Two: (O = M with the belt): Belt wide (9.5mm ~ 10mm), thickness (6mm), length 11 inches to 80 inches, that is, 280MM ~ 2030MM, 
 Three: A belt: Belt wide: (12.5mm ~ 13mm), thickness (8MM), length 17 inches to 259 inches, that is, 430MM ~ 6570MM) 
 Four: B Belt: Belt wide: (16.5mm ~ 17mm), thickness (11MM), length 22 inches to 300 inches, that is, 560MM ~ 7625MM) 
 Five: C Belt: Belt wide: (20MM ~ 22MM), thickness (14MM), length 37 inches to 270 inches, that is, 950MM ~ 6850MM. 
 Six: D Belt: Belt wide: (30MM ~ 32MM), thickness (19MM), length of 100 inches to 270 inches, that is, 2540MM ~ 6850MM. 

 Oil with a high-speed, SP series, with no teeth: 
 A: SPZ belt: Belt wide: (9.7mm), thickness (8MM), length of 487MM ~ 3550MM. 
 Two: SPA with: Belt wide: (12.7mm), thickness (10MM), length of 732MM ~ 4500MM. Belt is without teeth. 
 Three: SPB Belt: Belt wide: (16.3mm), thickness (13MM), length 1250MM ~ 9010MM. Belt is without teeth. Four: SPC with: Belt wide: (22MM), thickness (18MM), length 2000MM ~ 12500MM. 

 Oil with a high-speed 3V, 5V, 8V Series (expert power), with no teeth: 
 A: 3V with: Belt wide: (9MM), thickness (8MM), units of "inches):