Guide
V-beltcodes
Classical sections and their top widths: Z 10 mm, A 13 mm, B 17 mm, C 22 mm, D 32 mm. AX, BX and CX are the cogged (notched) versions of A, B and C.
Narrow sections (ISO 4184): SPZ 9,7 mm, SPA 12,7 mm, SPB 16,3 mm, SPC 22 mm, sized by their datum length in millimetres, for example SPZ1250.
A classical belt with a small number is sized in inches of inside length: B48 is a B belt 48 in (about 1.219 mm) inside. A large number is a length in millimetres; check whether the belt marks the inside or the datum length.
Belts that run side by side on one drive are ordered as a matched set of the number of grooves, so they share the load. Count such spares in sets.
Examples: B48 is a B belt 48 in inside; SPZ1250 is an SPZ belt of 1.250 mm datum length; a drive with three grooves takes a matched set of 3.
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