Browning BK Catalog Page
SINGLE GROOVE SHEAVES
COMBINATION GROOVE
FOR “4L” or “A” Belts and “5L” or “B” Belts
Cast Iron Sheaves BK
TABLE No. 1
PART
o.
N
BK24
BK25
BK26
BK27
BK28
BK30
BK32
BK34 3.55 2.80 3.20 2 X X X X X X 0.88 1. 16 0.41 0.13 1. 5
BK36 3.75 3.00 3.40 2 X X X X X X 0.88 1. 16 0.41 0.12 1. 7
BK40 3.95 3.20 3.60 2 X X X X X X 0.88 1. 15 0.41 0.13 1.81
BK45 4.25 3.50 3.90 2 X X X X X X 0.88 1. 16 0.41 0.13 2.01
BK47 4.45 3.70 4.10 2 X X X X X X 0.88 1. 16 0.41 0.12 2.35
BK50 4.75 4.00 4.40 3 X X X X X X x 0.88 1. 16 0.41 0.12 2.29
BK52 4.95 4.20 4.60 3 X X X X X X 0.88 1. 16 0.41 0.13 2.23
BK55 5.25 4.50 4.90 3 X X X X X X X 0.88 1. 16 0.41 0.12 2.6
BK57 5.45 4.70 5.10 3 X X X X X X 0.88 1. 16 0.41 0.12 2.54
BK60 5.75 5.00 5.40 3 X X X X X X X 0.88 1. 16 0.41 0.13 3.04
BK62 5.95 5.20 5.60 3 X X X X X X X X 0.88 1. 1 6 0.41 0.13 2.98
BK65 6.25 5.50 5.90 3 X X X X 0.88 1. 16 0.41 0.13 3.16
BK67 6.45 5.70 6.10 3 X X X X 0.88 1. 16 0.41 0.13 3.73
BK70 6.75 6.00 6.40 3 X X X X X X X 0.88
BK72 6.95 6.20 6.60 3 X X X X X 0.88 1.47 0.66 0.06 4.44
BK75 7.25 6.50 6.90 3 X X X X 0.88 1.47 0.66 0.06 4.1
BK77 7.45 6.70 7. 10 3 X X X X X 0.88 1.47 0.66 0.06 5.31
BK80 7.75 7. 0 0 7.40 3 X X X X X X X X X 0.88 1.47 0.66 0.06 5.01
BK85 8.25 7.50 7.90 3 X X X X X 0.88 1.47 0.66 0.06 5.59
BK90 8.75 8.00 8.40 3 X X X X X X X X 0.88 1.47 0.66 0.06 6.02
BK95 9.25 8.50 8.90 3 X X X X X 0.88 1.47 0.66 0.06 6.77
BK100 9.75 9.00 9.40 3 X X X X X X X x 0.88 1.47 0.66 0.06 5.99
BK105 10.25 9.50 9.90 3 X X X 0.88 1.47 0.66 0.06 7. 15
BK110 10.75 10.00 10.40 3 X X X X X X 0.88 1.47 0.66 0.06 8.07
BK115 11.25 10.50 10.90 3 X X X 0.88 1.47 0.66 0.06 8.29
BK120 11.75 11. 0 0 11.40 3 X X X X 0.88 1.47 0.66 0.06 8.79
BK130 12.75 12.00 12.40 3 X X X X X 0.88 1.47 0.66 0.06 10.62
BK140 13.75 14.00 13.40 3 X X X X 0.88 1.47 0.66 0.06 10.16
BK160 15.75 15.00 15.40 3 X X X X X 0.88 1.47 0.66 0.06 13.7
BK190 18.75 18.00 18.40 3 X X X X 0.88 1.47 0.66 0.06 16. 19
For bores not usually encountered. use FHP Bushings shown on Page A-6.
13
P =
/32” and C = 1/8” for 1” Bores and Smaller.
NOTE - DO NOT USE THESE “BK” SHEAVES WITH “B” GRIPNOTCH BELT RATINGS.
DIAMETERS
OUT-
DATUM
SIDE
“A”
2.40 1.80 2.20 1 X X X 0.88 1. 16 0.44 0.16 0.69
2.50 1.90 2.30 1 X X x X 0.88 1. 16 0.44 0.16 0.74
2.60 2.00 2.40 1 X X X X 0.88 1. 1 6 0.44 0.16 0.8
2.70 2.10 2.50 2 X X X X 0.88 1. 1 6 0.44 0.16 0.86
2.95 2.20 2.60 2 X X X X 0.88 1. 1 6 0.44 0.16 1.03
3.15 2.40 2.80 2 X X X X 0.88 1. 16 0.44 0.16 1. 17
3.35 2.60 3.00 2 X X X X 0.88 1. 1 6 0.44 0.15 1.28
DATUM
“B”
TYPE
1
/2”5/8”3/4”7/8”15/16”
STOCK SIZES - FINISHED BORE
STOCK BORES MARKED “X” DIMENSIONS
1”
1 1/8” 1 3/16” 1 1/4” 1 3/8” 1 7/16”
F L P C
1.47 0.66 0.06 4.28
1. 16 0.41 0.13 3.39
WT.
LBS
A-25
HOLLOW HEAD
SETSCREW
STATICALLY
BALANCED
STANDARD KEYSEATS
TABLE No. 2
BORE RANGE KEYSEAT
1
/2”
5
8
/8 to 7/
15
/16 to 1 1/
16
1 7/
4
None
3
/16” x 3/32”
1
/4 x 1/
3
/8 x 3/
8
16
SINGLE GROOVE SHEAVES
COMBINATION GROOVE
FOR “4L” or “A” Belts and “5L” or “B” Belts
Cast Iron Sheaves BKH
TABLE No. 1
PART
NO.
BK30H 3.15 2.40 2.80 1 1.91 0.88 1.28 0.87 - 1.31 0.44 0.16 1.24
BK32H 3.35 2.60 3.00 1 1.91 0.88 1.28 0.87 - 1.31 0.44 0.16 1.42
BK34H 3.55 2.80 3.20 1 1.91 0.88 1.28 0.87 - 1.31 0.44 0.16 1.61
BK36H 3.75 3.00 3.40 1 1.47 0.88 1.28 0.44 - 0.88 0.44 0.16 1.25
BK40H 3.95 3.20 3.60 1 1.47 0.88 1.28 0.44 - 0.88 0.44 0.16 1.47
BK45H 4.25 3.50 3.90 1 1.47 0.88 1.28 0.44 - 0.88 0.44 0.16 1.83
BK47H 4.45 3.70 4.10 1 1.47 0.88 1.28 0.44 - 0.88 0.44 0.16 2.08
BK50H 4.75 4.00 4.40 2 1.47 0.88 1.28 0.44 - 0.88 0.44 0.16 2.25
BK52H 4.95 4.20 4.60 2 1.47 0.88 1.28 0.44 - 0.88 0.44 0.16 2.56
BK55H 5.25 4.50 4.90 2 1.47 0.88 1.28 0.44 - 0.88 0.44 0.16 2.66
BK57H 5.45 4.70 5.10 2 1.47 0.88 1.28 0.44 - 0.88 0.44 0.16 3.06
BK60H 5.75 5.00 5.40 2 1.47 0.88 1.28 0.44 - 0.88 0.44 0.16 3.30
BK62H 5.95 5.20 5.60 2 1.47 0.88 1.28 0.44 - 0.88 0.44 0.16 3.41
BK65H 6.25 5.50 5.90 2 1.47 0.88 1.28 0.44 - 0.88 0.44 0.16 3.09
BK67H 6.45 5.70 6.10 2 1.47 0.88 1.28 0.44 - 0.88 0.44 0.16 3.90
BK70H 6.75 6.00 6.40 3 1.53 0.88 1.28 0.50 0.88 0.44 0.16 3.89
BK72H 6.95 6.20 6.60 3 1.53 0.88 1.28 0.50 0.06 0.88 0.44 0.16 4.00
BK75H 7.25 6.50 6.90 3 1.53 0.88 1.28 0.50 0.06 0.88 0.44 0.16 3.57
BK77H 7.45 6.70 7. 1 0 3 1.53 0.88 1.28 0.50 0.06 0.88 0.44 0.16 4.48
BK80H 7.75 7. 0 0 7.40 3 1.53 0.88 1.28 0.50 0.06 0.88 0.44 0.16 4.50
BK85H 8.25 7.50 7.90 3 1.53 0.88 1.28 0.50 0.06 0.88 0.44 0.16 4.87
BK90H 8.75 8.00 8.40 3 1.53 0.88 1.28 0.50 0.06 0.87 0.44 0.16 5.43
BK95H 9.25 8.50 8.90 3 1.53 0.88 1.28 0.50 0.06 0.88 0.44 0.16 5.83
BK100H 9.75 9.00 9.40 3 1.53 0.88 1.28 0.50 0.06 0.88 0.44 0.16 6.38
BK105H 10.25 9.50 9.90 3 1.53 0.88 1.28 0.50 0.06 0.88 0.44 0.16 6.68
BK110H 10.75 10.00 10.40 3 1.53 0.88 1.28 0.50 0.06 0.88 0.44 0.16 7. 1 7
BK115H 11.25 10.50 10.90 3 1.53 0.88
BK120H 11.75 11.0 0 11.40 3 1.53 0.88 1.28 0.50 0.06 0.88 0.44 0.16 8.34
BK130H 12.75 12.00 12.40 3 1.53 0.88 1.28 0.50 0.06 0.88 0.44 0.16 7.99
BK140H 13.75 13.00 13.40 3 1.53 0.88 1.28 0.50 0.06 0.88 0.44 0.16 9.50
BK150H 14.75 14.00 14.40 3 1.53 0.88 1.28 0.50 0.06 0.88 0.44 0.16 10.35
BK160H 15.75 15.00 15.40 3 1.53 0.88 1.28 0.50 0.06 0.88 0.44 0.16 11.11
BK190H 18.75 18.00 18.40 3 1.53 0.88 1.28 0.50 0.06 0.88 0.44 0.16 14.45
O.D.
DIAMETERS
DATUM
“A”
DATUM
“B”
STOCK SIZES - WITH SPLIT TAPER BUSHINGS
DIMENSIONS
TYPE
O.L. F L P C X G E
1.28 0.50 0.06 0.88 0.44 0.16 7. 0 1
WT.
LBS.
LESS
BUSH.
TABLE No. H BUSHING
BUSHING L U T
1
H
/4 1/4
1
D
LARGE
SMALL
END
1 1.625 1.571
END
H V W X Y R S
3
2 1/2
2 -
14
16
/
1
16
/
/8 3/
EASY TO MOUNT
CLAMP FIT ON SHAFT
EASY TO REMOVE
BORE RANGE CAP SCREWS
TYPE 1 TYPE 2 No. SIZE
3
16
/8 - 1 1/81 7/16 - 1 1/
Part Numbers are specified by “H”
and bore size. Example:
“H - 1 1/8”
*These sizes are furnished with
special keys to fit
standard depth keyseats.
AVG.
\WRENCH
WT.
TORQUE
LBS
1
2
2
/4-20 x 5/
0.8 95 0.16
8
IN-LBS
CAPSCREW
HEAD
PROJECTION
A-26
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