Belt Math O Pwli

Y modelau gwregys triongl yw: OABCDE 3V 5V 8V cyffredin, AX BX CX DX EX 3VX 5VX 8VX, gwregys V cul SPZ SPA SPB SPC, gwregys V cul cryf XPA XPB XPC; Mae pob model o'r gwregys triongl yn pennu maint adran y gwregys triongl. Maint adran y gwregys triongl math A yw: mae'r lled uchaf yn 13mm ac mae'r trwch yn 8mm; Maint adran y gwregys triongl math B yw: y lled uchaf yw 17MM, y trwch yw 10.5MM; Maint adran y gwregys triongl math C yw: y lled uchaf yw 22MM, y trwch yw 13.5MM; Maint adran y gwregys triongl math D yw: y lled uchaf yw 21.5MM, y trwch yw 19MM; Maint adran y gwregys trionglog E yw: y lled uchaf yw 38MM, a'r trwch yw 25.5MM. Dimensiynau cyfatebol (W * H): O (10*6), A (12.5*9), B (16.5*11), C (22*14), D (21.5*19), E (38*25.5).
The national standard stipulates that there are seven types of triangle belt O, A, B, C, D, E, F, and the corresponding belt groove Angle has three kinds of 34°, 36°, 38°, and the minimum diameter of the small belt pulley corresponding to each type of triangle belt groove Angle is specified, and the large belt pulley is not specified. The groove Angle of the pulley is divided into 32 degrees, 34 degrees, 36 degrees, 38 degrees, and the specific choice should be selected according to the groove type and the base diameter of the pulley; The groove Angle of the belt pulley is related to the diameter of the belt pulley. The recommended groove Angle number of the different models of the belt pulley is as follows: The O-type belt pulley is 34 degrees when the diameter range of the belt pulley is 50mm ~ 71mm; 36 degrees when 71mm ~ 90mm, 38 degrees when >90mm; The A-type pulley is 34 degrees when the pulley diameter ranges from 71mm to 100mm, and 36 degrees when 100mm to 125mm; 38 degrees when >125mm; B-type pulley is 34 degrees when the pulley diameter ranges from 125mm to 160mm; When 160mm ~ 200mm is 36 degrees, when >200mm is 38 degrees; The C-type pulley is 34 degrees when the pulley diameter ranges from 200mm to 250mm, 36 degrees when 250mm to 315mm, and 38 degrees when >315mm; D-type pulley in the pulley diameter range of 355mm ~ 450mm is 36 degrees, >450mm is 38 degrees; The E type is 36 degrees when 500mm ~ 630mm and 38 degrees when >630mm.