Cast Iron Sheave

Cast Iron Sheaves - Light Duty
Bored-to Size, Two Groove
2BK25 to 2BK190
for 4L or A, 5L or B Belts. See pages
44-49
Order part number size + bore
Example: 2BK25-1/2
2BK47-1-1/8
2BK25 2.50 1.90 2.30 1 s 1 3/4 1 31/32 15/32 1/4 1/2, 5/8, 3/4, 7/8 1.6 1.5
2BK27 2.70 2.10 2.50 1 s 1 3/4 1 31/32 15/32 1/4 1/2, 5/8, 3/4, 7/8, 1, 1 1/8 1.7 1.7
2BK28 2.95 2.20 2.60 1 s 1 3/4 1 31/32 15/32 1/4 1/2, 5/8, 3/4, 7/8, 1, 1 1/8 1.9 2.1
2BK30 3.15 2.40 2.80 1 s 1 3/4 1 31/32 15/32 1/4 1/2, 5/8, 3/4, 7/8, 1, 1 1/8, 1.9 2.3
1 3/8 2.4
2BK32 3.35 2.60 3.00 1 s 1 3/4 1 31/32 15/32 1/4 5/8, 3/4,7/8, 1.6 2.7
1, 1 1/8 1.9
2BK34 3.55 2.80 3.20 1 s 1 3/4 1 31/32 15/32 1/4 5/8, 3/4, 7/8, 1.6 3.1
1, 1 1/8 1.9
2BK36 3.75 3.00 3.40 1 s 1 3/4 1 31/32 15/32 1/4 5/8, 3/4, 7/8, 1.6 3.4
1, 1 1/8 1.9
1 3/8 2.4
2BK40 3.95 3.20 3.60 2 s 1 3/4 1 15/32 15/32 3/4 5/8, 3/4, 7/8, 1.6 3.4
1, 1 1/8 1.9
2BK45 4.25 3.50 3.90 2 s 1 3/4 1 15/32 15/32 3/4 1, 1 1/8, 1.9 4.0
1 3/8 2.4
2BK47 4.45 3.70 4.10 2 s 1 3/4 1 15/32 15/32 3/4 7/8, 1.6 4.2
1, 1 1/8, 1.9
1 3/8 2.4
2BK50 4.75 4.00 4.40 2 s 1 3/4 1 15/32 15/32 3/4 3/4, 1.6 4.8
1, 1 1/8, 1.9
1 3/8 2.4
2BK52 4.95 4.20 4.60 2 s 1 3/4 1 15/32 15/32 3/4 5/8, 7/8, 1.6 5.2
1, 1 1/8, 1.9
1 3/8, 2.4
2BK55 5.25 4.50 4.90 2 s 1 3/4 1 15/32 15/32 3/4 1 1/8, 1.9 5.8
1 3/8 2.4
2BK57 5.45 4.70 5.10 2 s 1 3/4 1 15/32 15/32 3/4 1, 1 1/8, 1.9 5.4
1 3/8 2

Cast Iron Sheaves - Light Duty
Bored-to Size, Two Groove