Pulley Bore Type
Fixed Bore
4L, A, or AX Belt Pitch Dia.
3.49 in to 5.22 in
Keyway Size Type
0.187 in x 0.093 in
For V-Belt Section
3L, 4L, 5L, A, AX, B, BX
3L Belt Pitch Dia.
3.86 in to 4.78 in
Pulley Outside Dia.
5.35 in
5L, B, or BX Belt Pitch Dia.
4.55 in to 5.37 in
Pulley Type
Variable Pitch V-Belt Pulley
Item
Variable Pitch V-Belt Pulley
A Pitch Diameter (Maximum)
5 in
5L Pitch Diameter (Minimum)
4.3 in
3L Belt Pitch Diameter
3.89 in to 4.78 in
4L Pitch Diameter (Minimum)
4 in
3L Pitch Diameter (Maximum)
4.7 in
5L, B, or BX Belt Pitch Diameter
4.55 in to 5.37 in
For Belt Trade Size
3L, 4L, 5L, A, AX, B, BX
For V-Belt Type
Classical, Cogged
3L Pitch Diameter (Minimum)
3.9 in
5L Pitch Diameter (Maximum)
5.3 in
AX Pitch Diameter (Minimum)
4 in
B Pitch Diameter (Minimum)
4.3 in
4L, A, or AX Belt Pitch Diameter
3.49 in to 5.22 in
BX Pitch Diameter (Maximum)
5.3 in
BX Pitch Diameter (Minimum)
4.3 in
AX Pitch Diameter (Maximum)
5 in
Maximum Pitch Diameter
4.7 in (3L), 5 in (4L, A), 5.3 in (5L, B)
Minimum Pitch Diameter
3.9 in (3L), 4 in (4L, A), 4.3 in (5L, B)
B Pitch Diameter (Maximum)
5.3 in
4L Pitch Diameter (Maximum)
5 in
A Pitch Diameter (Minimum)
4 in
5V Pitch Diameter (Maximum)
Not Applicable
Maximum Face Width
1.125 in
3V Pitch Diameter (Maximum)
Not Applicable
3VX Pitch Diameter (Maximum)
Not Applicable
CX Pitch Diameter (Maximum)
Not Applicable
5V Pitch Diameter (Minimum)
Not Applicable
CX Pitch Diameter (Minimum)
Not Applicable
Number of Turns
4 (3L); 5 (4L, A); 6 (5L, B)
5VX Pitch Diameter (Minimum)
Not Applicable
Minimum Face Width
0.75 in
3V Pitch Diameter (Minimum)
Not Applicable
C Pitch Diameter (Minimum)
Not Applicable
Length through Bore
1 7/8 in
C Pitch Diameter (Maximum)
Not Applicable
5VX Pitch Diameter (Maximum)
Not Applicable
3VX Pitch Diameter Minimum)
Not Applicable
Pulley Industry Number
1VP56
Country of Origin (subject to change)
Multiple
