SHEAVES ®
APPLICATION AND WARNING INFORMATION
SECTION 17
McKissick® Plain Bore Oilfield Sheaves for Tapered Bearings
• Roll-Forged sheaves are available in sizes up to 78" in diameter.
• Applications should provide for tightening separator plates against bearing cones to adjust and insure proper function of bearing.
• Each sheave in the table below has a machined bore sized to accept the respective bearing number shown.
• The sheaves are provided from the factory plain bore (the bearings are not included).
Bore Information “C”
“A” Bearing Info. Nominal
Nominal Wire “D” (Bearing not Included) Hub “B”
Outside Rope Bore Shaft Bearing Rim Outside Tread Approx.
Diameter Stock Diameter Diameter Diameter Bearing Width Width Diameter Diameter Weight
(in) Number (in) (in) (in) Description (in) (in) (in) (in) Material (lb)
20 2030311 9/16 4.722 2.756 NA-483-SW-472-D 2.750 2.75 6.50 17.62 R.F. 80
20 2029285 5/8 4.722 2.756 NA-483-SW-472-D 2.750 2.75 6.50 17.81 R.F. 75
24 2030941 9/16 6.498 4.250 NA56425-SW-56650D 3.375 3.12 8.00 21.62 R.F. 103
24 2030905 5/8 6.498 4.250 NA56425-SW-56650D 3.375 3.00 8.00 22.00 R.F. 117
24 2027885 9/16 6.498 4.250 NA56425-SW-56650D 3.375 3.12 8.00 21.62 R.F. 90
24 2027887 5/8 6.498 4.250 NA56425-SW-56650D 3.375 2.75 8.00 22.00 R.F. 80
24 2027880 7/8 6.498 4.250 NA56425-SW-56650D 3.375 3.12 8.00 20.94 R.F. 125
24 2023993 1 6.498 4.250 NA56425-SW-56650D 3.375 3.12 9.00 21.12 R.F. 110
30 2026299 1 6.498 4.250 NA56425-SW-56650D 3.375 3.12 8.50 26.50 R.F. 190
30 2026036 1-1/8 6.498 4.250 NA56425-SW-56650D 3.375 3.12 9.00 26.06 R.F. 230
30 2026230 1 7.873 5.625 NA48685-SW/48620 3.500 3.12 10.25 26.50 R.F. 255
30 2026003 1-1/8 7.873 5.625 NA48685-SW/48620 3.500 3.12 10.25 26.06 R.F. 255
30 2030906 1 8.873 6.500 NA46790-SW-46720 3.625 3.37 10.25 26.50 R.F. 185
30 2030907 1-1/8 8.873 6.500 NA46790-SW-46720 3.625 3.37 12.00 26.06 R.F. 265
30 2027941 1 6.498 4.250 NA56425-SW-56650D 3.375 3.12 9.00 26.50 R.F. 150
30 2027945 1-1/8 6.498 4.250 NA56425-SW-56650D 3.375 3.12 9.00 26.06 R.F. 200
30 2030274 1 7.873 5.625 NA48685-SW/48620 3.500 3.12 10.25 26.50 R.F. 161
30 2030260 1-1/8 7.873 5.625 NA48685-SW/48620 3.500 3.12 10.25 26.06 R.F. 218
36 2030942 1 7.873 5.625 NA48685-SW/48620 3.500 3.25 10.25 33.12 R.F. 350
36 2030908 1-1/8 7.873 5.625 NA48685-SW/48620 3.500 3.25 10.25 33.62 R.F. 350
36 2030943 1 8.873 6.500 NA46790-SW-46720 3.625 3.12 11.50 33.12 R.F. 353
36 2029390 1-1/8 8.873 6.500 NA46790-SW-46720 3.625 3.25 11.00 32.62 R.F. 300
36 2029392 1-1/4 8.873 6.500 NA46790-SW-46720 3.625 3.25 11.00 32.25 R.F. 300
36 2030944 1 10.873 8.000 LM241149NW/241110-D 3.625 3.12 14.00 33.12 R.F. 370
36 2030909 1-1/8 10.873 8.000 LM241149NW/241110-D 3.625 3.50 14.00 32.06 R.F. 358
36 2030945 1-1/4 10.873 8.000 LM241149NW/241110-D 3.625 3.37 14.00 32.25 R.F. 330
36 2030282 1 7.873 5.625 NA48685-SW/48620 3.500 3.25 10.25 33.12 R.F. 240
36 2030284 1 1/8 7.873 5.625 NA48685-SW/48620 3.500 3.25 10.25 32.62 R.F. 250
42 2030946 1-1/8 8.873 6.500 NA46790-SW-46720 3.625 3.25 12.00 38.62 R.F. 460
42 2030947 1-1/4 8.873 6.500 NA46790-SW-46720 3.625 3.25 11.50 38.25 R.F. 470
42 2030948 1-1/8 10.873 8.000 LM241149NW/241110-D 3.625 3.25 14.00 38.62 R.F. 465
42 2030949 1-1/4 10.873 8.000 LM241149NW/241110-D 3.625 3.25 14.00 38.25 R.F. 460
42 2030950 1-1/8 12.873 9.250 NA8575SW-8520CD 4.500 3.50 16.00 38.62 R.F. 465
42 2030951 1-1/4 12.873 9.250 NA8575SW-8520CD 4.500 3.38 16.00 38.25 R.F. 475
44 2030952 1-1/8 10.873 8.000 LM241149NW/241110-D 3.625 3.38 14.00 40.06 R.F. 615
44 2030953 1-1/4 10.873 8.000 LM241149NW/241110-D 3.625 3.00 14.00 40.25 R.F. 545
48 2030954 1-1/8 10.873 8.000 LM241149NW/241110-D 3.625 3.25 14.00 44.62 R.F. 580
48 2030955 1-1/4 10.873 8.000 LM241149NW/241110-D 3.625 2.75 14.00 44.25 R.F. 512
48 2030956 1-1/4 13.686 10.000 LM249747NWLM249710D 3.875 3.25 17.00 44.25 R.F. 640
50 2030938 1-1/4 10.873 8.000 LM241149NW/241110-D 3.625 3.37 14.00 46.25 R.F. 765
50 2030957 1-1/4 13.686 8.000 LM241149NW/241110-D 3.875 3.25 17.00 46.25 R.F. 765
50 2030958 1-3/8 13.686 10.000 LM249747NW/LM249710D 3.875 3.75 17.00 45.62 R.F. 735
55 2030959 1-1/8 12.873 9.250 NA8575SW-8520CD 4.500 3.50 16.00 51.06 R.F. 890
55 2030960 1-1/4 12.873 9.250 NA8575SW-8520CD 4.500 3.38 16.00 51.25 R.F. 825
55 2030961 1-1/4 13.686 10.000 LM249747NW/LM249710D 3.875 3.50 19.00 51.25 R.F. 588
60 2030879 1-1/4 13.686 10.000 LM249747NW/LM249710D 3.875 3.25 17.00 56.25 R.F. 1095
60 2030880 1-3/8 13.873 10.500 LM251649NW/251610-D 4.125 3.62 19.00 55.88 R.F. 1175
60 2030881 1-3/8 15.498 12.000 L357049NW/L357010D 4.125 3.75 19.00 55.88 R.F. 1175
60 2030875 1-1/2 13.686 10.000 LM249747NW/LM249710D 3.875 3.50 19.00 55.50 R.F. 1175
**Crown Sheaves contain lightening holes.
Custom sheaves are available.
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