For V-Belt Section
3L, 4L, 5L, A, AX, B, BX
3L Belt Pitch Dia.
2.70 in to 3.50 in
Pulley Type
Variable Pitch V-Belt Pulley
4L, A, or AX Belt Pitch Dia.
2.9 in to 3.9 in
Pulley Bore Type
Fixed Bore
Item
Variable Pitch V-Belt Pulley
Pulley Outside Dia.
3.5 in
Keyway Size Type
0.25 in x 0.125 in
5L, B, or BX Belt Pitch Dia.
3 in to 4 in
5L Pitch Diameter (Maximum)
4 in
B Pitch Diameter (Minimum)
3 in
4L Pitch Diameter (Minimum)
2.9 in
AX Pitch Diameter (Minimum)
2.9 in
BX Pitch Diameter (Maximum)
4 in
3L Pitch Diameter (Minimum)
2.7 in
AX Pitch Diameter (Maximum)
3.9 in
5L, B, or BX Belt Pitch Diameter
3 in to 4 in
B Pitch Diameter (Maximum)
4 in
4L, A, or AX Belt Pitch Diameter
2.9 in to 3.9 in
For V-Belt Type
Classical, Cogged, Micro-Ribbed
For Belt Trade Size
3L, 4L, 5L, A, AX, B, BX
5L Pitch Diameter (Minimum)
3 in
BX Pitch Diameter (Minimum)
3 in
A Pitch Diameter (Minimum)
2.9 in
3L Pitch Diameter (Maximum)
3.5 in
Set Screw Location
180 Degrees from Keyway, 90 Degrees Apart
3L Belt Pitch Diameter
2.7 in to 3.5 in
Maximum Pitch Diameter
3.50 in (3L), 3.9 in (4L, A, AX), 4 in (5L, B, BX)
A Pitch Diameter (Maximum)
3.9 in
4L Pitch Diameter (Maximum)
3.9 in
Country of Origin (subject to change)
China
