 |
PILOT BORE SHEAVES
| BK24 to BK190 For 4L or A
and 5L or B belts. | |  |
| SIZE | DIAMETER | TYPE | DIMENSIONS | STOCK BORES | | OD | PD | F |
L |
P |
C
| | 'A' | 'B' | BK24
BK25
BK26
BK27
BK28 | 2.40
2.50
2.60
2.70
2.95 | 1.80
1.90
2.00
2.10
2.20 | 2.20
2.30
2.40
2.50
2.60 | 1
1 1
2
2 | 13/16
13/16
13/16
13/16
13/16 | 1 1/16
1 1/16
1 1/16
1 1/16
1 1/16 | 13/32
13/32
13/32
13/32
13/32 | 5/32
5/32
5/32
5/32
5/32 | 1/2, 5/8, 3/4
1/2, 5/8, 3/4, 7/8
1/2, 5/8, 3/4, 7/8
1/2, 5/8, 3/4, 7/8
1/2, 5/8, 3/4, 7/8 | BK30
BK32
BK34
BK36
BK40 | 3.15 3.35
3.55
3.75
3.95 | 2.40
2.60
2.80
3.00
3.20 | 2.80
3.00
3.20
3.40
3.60 | 2
2
2
2
2 | 13/16
13/16 7/8
7/8
7/8 | 1 1/16
1 1/16
1 5/32
1 5/32
1 5/32 | 13/32
13/32
13/32
13/32
13/32 | 5/32
5/32
1/8
1/8
1/8 | 1/2, 5/8, 3/4, 7/8
1/2, 5/8, 3/4, 7/8
1/2, 5/8, 3/4, 7/8, 1, 1 1/8
1/2, 5/8, 3/4, 7/8, 1, 1 1/8
1/2, 5/8, 3/4, 7/8, 1, 1 1/8 | BK45
BK47
BK50
BK52
BK55 | 4.25
4.45
4.75
4.95 5.25 | 3.50
3.70
4.00
4.20
4.50 | 3.90
4.10
4.40
4.60
4.90 | 2
2
3
3
3 | 7/8
7/8
7/8
7/8
7/8 | 1 5/32
1 5/32
1 5/32
1 5/32
1 5/32 | 13/32
13/32
13/32
13/32
13/32 | 1/8
1/8
1/8
1/8
1/8 | 1/2, 5/8, 3/4, 7/8, 1, 1 1/8
1/2, 5/8, 3/4, 7/8, 1, 1 1/8
1/2, 5/8, 3/4, 7/8, 15/16, 1, 1 1/8
1/2, 5/8, 3/4, 7/8, 1, 1 1/8
1/2, 5/8, 3/4, 7/8, 1, 1 1/8, 1 3/16 | BK57
BK60
BK62
BK65
BK67
| 5.45
5.75
5.95
6.25
6.45
| 4.70
5.00
5.20
5.50
5.70
| 5.10
5.40
5.60
5.90
6.10
| 3
3
3
3
3
| 7/8
7/8
7/8
7/8
7/8
| 1 5/32
1 5/32
1 5/32
1 5/32
1 5/32
| 13/32
13/32
13/32
13/32
13/32
| 1/8
1/8
1/8
1/8
1/8
| 5/8, 3/4, 7/8, 15/16, 1, 1 1/8
1/2, 5/8, 3/4, 7/8, 1, 1 1/8, 1 3/16
1/2, 5/8, 3/4, 7/8, 15/16, 1, 1 1/8,
1 3/16
5/8, 3/4, 1, 1 1/8
5/8, 3/4, 1, 1 1/8 | BK70
BK72
BK75
BK77
BK80
| 6.75
6.95
7.25
7.45
7.75 | 6.00
6.20
6.50
6.70
7.00
| 6.40
6.60
6.90
7.10
7.40
| 3
3
3
3
3
| 7/8
7/8
7/8
7/8
7/8
| 1 15/32
1 15/32
1 15/32
1 15/32
1 15/32
| 21/32
21/32
21/32
21/32
21/32
| 1/16
1/16
1/16
1/16
1/16
| 5/8, 3/4, 15/16, 1, 1 1/8,
1 3/16, 1 7/16
3/4, 1, 1 1/8, 1 3/8
3/4, 1, 1 1/8, 1 3/8
3/4, 1, 1 1/8, 1 3/8
5/8, 3/4, 7/8, 1, 1 1/8, 1 3/16,
1 1/4, 1 3/8, 1 7/16 | BK85
BK90
BK95
BK100
BK105
| 8.25 8.75
9.25
9.75
10.25
| 7.50
8.00
8.50
9.00
9.50
| 7.90
8.40
8.90
9.40
9.90
| 3
3
3
3
3
| 7/8
7/8
7/8
7/8
7/8
| 1 15/32
1 15/32
1 15/32
1 15/32
1 15/32
| 21/32
21/32
21/32
21/32
21/32
| 1/16
1/16
1/16
1/16
1/16
| 3/4, 1, 1 1/8, 1 3/8, 1 7/16
3/4, 7/8, 15/16, 1, 1 1/8, 1 3/16,
1 3/8, 1 7/16
3/4, 1, 1 1/8, 1 3/8, 1 7/16
3/4, 7/8, 15/16, 1, 1 1/8, 1 3/16,
1 1/4, 1 3/8, 1 7/16
1, 1 3/8, 1 7/16 | BK110
BK115
BK120
BK130
BK140 | 10.75
11.25
11.75 12.75
13.75 | 10.00
10.50
11.00
12.00
13.00 | 10.40
10.90
11.40
12.40
13.40 | 3
3
3
3
3 | 7/8
7/8
7/8
7/8
7/8 | 1 15/32
1 15/32
1 15/32
1 15/32
1 15/32 | 21/32
21/32
21/32
21/32
21/32 | 1/16
1/16
1/16
1/16
1/16 | 3/4, 1, 1 1/8, 1 3/16, 1 3/8, 1 7/16
1, 1 3/8, 1 7/16
3/4, 1, 1 3/16, 1 3/8, 1 7/16
3/4, 1, 1 1/8, 1 3/16, 1 1/4, 1 7/16
3/4, 1, 1 3/16, 1 7/16 | BK160
BK190 | 15.75
18.75 | 15.00
18.00 | 15.40
18.40 | 3
3 | 7/8
7/8 | 1 15/32
1 15/32 | 21/32
21/32 | 1/16
1/16 | 1, 1 1/8, 1 3/16, 1 1/4, 1 7/16
1, 1 3/16, 1 1/4, 1 7/16 |
|
PILOT BORE SHEAVES
2BK25 to
2BK190 For 4L or A
and 5L or B belts. | |  | | | | |
| SIZE | DIAMETER | TYPE | DIMENSIONS | STOCK BORES | | 0D | PD | F | L | P | C | | 'A' | 'B' | 2BK25
2BK27
2BK28
2BK30
2BK32 | 2.50
2.70
2.95
3.15
3.35 | 1.90
2.10
2.20
2.40
2.60 | 2.30
2.50
2.60
2.80
3.00 | 1
1
1
1
1 | 1 3/4
1 3/4
1 3/4
1 3/4
1 3/4 | 1 31/32
1 31/32
1 31/32
1 31/32
1 31/32 | 15/32
15/32
15/32
15/32
15/32 | 1/4
1/4
1/4
1/4
1/4 | 1/2, 5/8, 3/4, 7/8
1/2, 5/8, 3/4, 7/8, 1
1/2, 5/8, 3/4, 7/8, 1, 1 1/8
1/2, 5/8, 3/4, 7/8, 1, 1 1/8
5/8, 7/8, 1, 1 1/8 | 2BK34
2BK36
2BK40
2BK45
2BK47 | 3.55
3.75
3.95
4.25
4.45 | 2.80
3.00
3.20
3.50
3.70 | 3.20
3.40
3.60
3.90
4.10 | 1
1
2
2
2 | 1 3/4
1 3/4
1 3/4
1 3/4
1 3/4 | 1 31/32
1 31/32
1 15/32
1 15/32
1 15/32 | 15/32
15/32
15/32
15/32
15/32 | 1/4
1/4
3/4
3/4
3/4 | 5/8, 3/4, 7/8, 1, 1 1/8
3/4, 7/8, 1, 1 1/8, 1 3/8
5/8, 3/4, 7/8, 1, 1 1/8
1, 1 1/8, 1 3/8
7/8, 1, 1 1/8 | 2BK50
2BK52
2BK55
2BK57
2BK60 | 4.75
4.95
5.25
5.45
5.75 | 4.00
4.20
4.50
4.70
5.00 | 4.40
4.60
4.90
5.10
5.40 | 2
2
2
2
3 | 1 3/4
1 3/4
1 3/4
1 3/4
1 3/4 | 1 15/32
1 15/32
1 15/32
1 15/32
1 15/32 | 15/32
15/32
15/32
15/32
15/32 | 3/4
3/4
3/4
3/4
3/4 | 3/4, 1, 1 1/8, 1 3/8
7/8, 1, 1 1/8, 1 3/8
1 1/8, 1 3/8
1, 1 1/8, 1 3/8
3/4, 7/8, 1, 1 1/8, 1 3/8 | 2BK62
2BK65
2BK67
2BK70
2BK80 | 5.95
6.25
6.45
6.75
7.75 | 5.20
5.50
5.70
6.00
7.00 | 5.60
5.90
6.10
6.40
7.40 | 3
3
3
3
3 | 1 3/4
1 3/4
1 3/4
1 3/4
1 3/4 | 1 15/32
1 15/32
1 15/32
1 19/32
1 19/32 | 15/32
15/32
15/32
11/32
11/32 | 3/4
3/4
3/4
1/2
1/2 | 1, 1 1/8, 1 3/8
1, 1 1/8, 1 3/8
1, 1 1/8, 1 3/8
3/4, 1, 1 1/8, 1 3/16, 1 3/8, 1 7/16
3/4, 1, 1 1/8, 1 3/16, 1 3/8, 1 7/16 | 2BK90
2BK100
2BK110
2BK120
2BK130 | 8.75
9.75
10.75
11.75
12.75 | 8.00
9.00
10.00
11.00
12.00 | 8.40
9.40
10.40
11.40
12.40 | 3
3
3
3
3 | 1 3/4
1 3/4
1 3/4
1 3/4
1 3/4 | 1 19/32
1 19/32
1 19/32
1 19/32
1 19/32 | 11/32
11/32
11/32
11/32
11/32 | 1/2
1/2
1/2
1/2
1/2 | 3/4, 1, 1 1/8, 1 3/16, 1 3/8, 1 7/16
3/4, 1, 1 3/16, 1 3/8, 1 7/16
1, 1 3/16, 1 7/16
1, 1 3/16, 1 7/16
1, 1 3/16, 1 7/16 | 2BK140
2BK160
2BK190 | 13.75
15.75
18.75 | 13.00
15.00
18.00 | 13.40
15.40
18.40 | 3
3
3 | 1 3/4
1 3/4
1 3/4 | 1 19/32
1 19/32
1 19/32 | 11/32
11/32
11/32 | 1/2
1/2
1/2 | 1, 1 3/16, 1 7/16
1, 1 3/16, 1 7/16
1 3/16, 1 7/16 | Bore Range | Keyseat | 1/2 | None | 5/8 to 7/8 | 3/16*3/32 | 15/16 to 1 1/4 | 1/4*1/8 | 1 7/16 | 3/8*3/16 |
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