BK-Series Pulleys for V-Belts
BK pulleys are manufactured for B-series v-belts, BX v-belts, 5L belts, as well as A-Series v-belts. BK pulleys range in diameter from 2.40" to 18.25" but custom ones are also available upon request.
BK-Series Pulley Size Chart
|
Size
|
Outside Diameter
|
Pitch Diameter
(4L/A)
|
Pitch Diameter (5L/B)
|
Type
|
Dimension (F)
|
Dimension (L)
|
Dimension (P)
|
Dimension (C)
|
Pulley Weight
|
| BK24 |
2.40" |
1.80" |
2.20" |
1
|
13/16" |
1-1/16" |
13/32" |
5/32" |
0.4 LBS
|
|
BK25 |
2.50" |
1.90" |
2.30" |
1
|
13/16"
|
1-1/16"
|
13/32"
|
5/32"
|
0.5 LBS
|
|
BK26 |
2.60" |
2.00" |
2.40" |
1
|
13/16"
|
1-1/16"
|
13/32"
|
5/32"
|
0.6 LBS
|
|
BK27 |
2.70"
|
2.10" |
2.50" |
2
|
13/16"
|
1-1/16"
|
13/32"
|
5/32"
|
0.6 LBS
|
|
BK28 |
2.95" |
2.20" |
2.60" |
2 |
13/16"
|
1-1/16"
|
13/32"
|
5/32"
|
0.8 LBS
|
|
BK30 |
3.15" |
2.40" |
2.80" |
2 |
13/16"
|
1-1/16"
|
13/32"
|
5/32"
|
0.8 LBS
|
|
BK32 |
3.35" |
2.60" |
3.00" |
2 |
13/16"
|
1-1/16"
|
13/32"
|
5/32"
|
0.8 LBS
|
|
BK34 |
3.55" |
2.80" |
3.20" |
2 |
7/8" |
1-5/32" |
13/32"
|
1/8" |
1.3 LBS
|
|
BK36 |
3.75" |
3.00" |
3.40" |
2 |
7/8"
|
1-5/32"
|
13/32"
|
1/8"
|
1.5 LBS
|
|
BK40 |
3.95" |
3.20" |
3.60" |
2 |
7/8"
|
1-5/32"
|
13/32"
|
1/8"
|
1.5 LBS
|
|
BK45 |
4.25" |
3.50" |
3.90" |
2 |
7/8"
|
1-5/32"
|
13/32"
|
1/8"
|
1.8 LBS
|
|
BK47 |
4.45" |
3.70" |
4.10" |
2 |
7/8"
|
1-5/32"
|
13/32"
|
1/8"
|
1.9 LBS
|
|
BK50 |
4.75" |
4.00" |
4.40" |
3
|
7/8"
|
1-5/32"
|
13/32"
|
1/8"
|
2.0 LBS
|
|
BK52 |
4.95" |
4.20" |
4.60" |
3 |
7/8"
|
1-5/32"
|
13/32"
|
1/8"
|
2.0 LBS
|
|
BK55 |
5.25" |
4.50" |
4.90" |
3 |
7/8"
|
1-5/32"
|
13/32"
|
1/8"
|
2.2 LBS
|
|
BK57 |
5.45" |
4.70" |
5.10" |
3 |
7/8"
|
1-5/32"
|
13/32"
|
1/8"
|
2.3 LBS
|
|
BK60 |
5.75" |
5.00" |
5.40" |
3 |
7/8"
|
1-5/32"
|
13/32"
|
1/8"
|
2.3 LBS
|
|
BK62 |
5.95" |
5.20" |
5.60" |
3 |
7/8"
|
1-5/32"
|
13/32"
|
1/8"
|
2.4 LBS
|
|
BK65 |
6.25" |
5.50" |
5.90" |
3 |
7/8"
|
1-5/32"
|
13/32"
|
1/8"
|
2.7 LBS
|
|
BK67 |
6.45" |
5.70" |
6.10" |
3 |
7/8"
|
1-5/32"
|
13/32"
|
1/8"
|
2.8 LBS
|
|
BK70 |
6.75" |
6.00" |
6.40" |
3 |
7/8"
|
1-15/32"
|
21/32" |
1/16" |
3.3 LBS
|
|
BK72 |
6.95" |
6.20" |
6.60" |
3 |
7/8"
|
1-15/32"
|
21/32"
|
1/16"
|
3.9 LBS
|
|
BK75 |
7.25" |
6.50" |
6.90" |
3 |
7/8"
|
1-15/32"
|
21/32"
|
1/16"
|
3.9 LBS
|
|
BK77 |
7.45" |
6.70" |
7.10" |
3 |
7/8"
|
1-15/32"
|
21/32"
|
1/16"
|
4.1 LBS
|
|
BK80 |
7.75" |
7.00" |
7.40" |
3 |
7/8"
|
1-15/32"
|
21/32"
|
1/16"
|
4.4 LBS
|
|
BK85 |
8.25" |
7.50" |
7.90" |
3 |
7/8"
|
1-15/32"
|
21/32"
|
1/16"
|
5.0 LBS
|
|
BK90 |
8.75" |
8.00" |
8.40" |
3 |
7/8"
|
1-15/32"
|
21/32"
|
1/16"
|
5.0 LBS
|
|
BK95 |
9.25" |
8.50" |
8.90" |
3 |
7/8"
|
1-15/32"
|
21/32"
|
1/16"
|
5.4 LBS
|
|
BK100 |
9.75" |
9.00" |
9.40" |
3 |
7/8"
|
1-15/32"
|
21/32"
|
1/16"
|
5.6 LBS
|
|
BK105 |
10.25" |
9.50" |
9.90" |
3 |
7/8"
|
1-15/32"
|
21/32"
|
1/16"
|
5.8 LBS
|
|
BK110 |
10.75" |
10.00" |
10.40" |
3 |
7/8"
|
1-15/32"
|
21/32"
|
1/16"
|
6.4 LBS
|
|
BK115 |
11.25" |
10.50" |
10.90" |
3 |
7/8"
|
1-15/32"
|
21/32"
|
1/16"
|
6.9 LBS
|
|
BK120 |
11.75" |
11.00" |
11.40" |
3 |
7/8"
|
1-15/32"
|
21/32"
|
1/16"
|
7.4 LBS
|
|
BK130 |
12.75" |
12.00" |
12.40" |
3 |
7/8"
|
1-15/32"
|
21/32"
|
1/16"
|
8.4 LBS
|
|
BK140 |
13.75" |
13.00" |
13.40" |
3 |
7/8"
|
1-15/32"
|
21/32"
|
1/16"
|
9.4 LBS
|
|
BK160 |
15.75" |
15.00" |
15.40" |
3 |
7/8"
|
1-15/32"
|
21/32"
|
1/16"
|
11.4 LBS
|
|
BK190 |
18.75" |
18.00" |
18.40" |
3 |
7/8"
|
1-15/32"
|
21/32"
|
1/16"
|
13.4 LBS
|
|
|
