Hubs and Sheaves

QD Sheaves and QD Bushings / Hubs

Features:

  • All sheaves balanced for smooth trouble free operation
  • Sheaves are furnished with standard keyways and set screws; all set screws are 5/16 – 18 knurled
  • Sheaves are phosphorated before painting to prevent rust and increase cohesion between paint and metal
  • The durable, machine gray, baked enamel outer finish offers a long-lasting clean appearance
  • Sheaves are accurately machined from gray cast iron, statically balanced, painted and individually packaged
  • Sheaves and bushings by MasterDrive® Inc are manufactured to meet or exceed the current ASTM/SAE specifications for gray iron casting

Catalog:

QD Sheaves for “B” V-Belts – Cast Iron, Heavy Duty, Bushed, 3 and 4 Groove

* = Can only be mounted from one direction. Note: Cast iron sheaves may not exceed 6500FPM. This speed does not specify if dynamic balancing (2 plane) is required.

O.D. B Catalog # Bush Type K L Weight (lbs)
3.753.40*3B34SHSHE-101 5/163.3
3.953.60*3B36SHSHD-13/161 5/163.6
4.153.80*3B38SHSHD-13/161 5/163.8
4.354.003B40SHSHA-11 1/161 5/164.2
4.554.203B42SHSHA-11 1/161 5/164.8
4.754.403B44SHSHA-11 1/161 5/165.3
4.954.603B46SDSDA-11 1/161 13/166.0
5.154.803B48SDSDA-11 1/161 13/166.5
5.355.003B50SDSDA-11 1/161 13/167.2
5.555.203B52SDSDA-11 1/161 13/167.8
5.755.403B54SDSDA-11 1/161 13/168.4
5.955.603B56SDSDA-11 1/161 13/169.0
6.155.803B58SDSDA-11 1/161 13/169.7
6.356.003B60SDSDA-11 1/161 13/168.9
6.756.403B64SDSDA-21 1/161 13/169.7
6.956.603B66SDSDA-21 1/161 13/1610.0
7.156.803B68SDSDA-21 1/161 13/1611.1
7.357.003B70SKSKA-211/161 15/1611.4
7.757.403B74SKSKA-211/161 15/1612.5
8.358.003B80SKSKA-211/161 15/1613.6
8.958.603B86SKSKA-311/161 15/1614.6
9.759.403B94SKSKA-311/161 15/1616.6
11.3511.003B110SKSKA-311/161 15/1620.8
12.7512.403B124SKSKA-311/161 15/1622.5
3.753.40*4B34SDSDE-15/161 13/164.3
3.953.60*4B36SDSDE-15/161 13/164.8
4.153.80*4B38SDSDE-15/161 13/165.2
4.354.00*4B40SDSDE-101 13/165.6
4.554.20*4B42SDSDE-101 13/166.2
4.754.40*4B44SDSDE-101 13/166.6
4.954.604B46SDSDA-11 5/161 13/167.2
5.355.004B50SDSDA-11 5/161 13/168.4
5.755.404B54SDSDA-11 5/161 13/169.8
6.356.004B60SDSDA-11 5/161 13/1610.9
6.756.404B64SDSDA-21 5/161 13/1611.7
6.956.604B66SDSDA-21 5/161 13/1612.2
7.156.804B68SDSDA-21 5/161 13/1613.0
7.357.004B70SKSKA-211 15/1613.7
7.757.404B74SKSKA-211 15/1614.8
8.358.004B80SKSKA-211 15/1616.3
8.958.604B86SKSKA-311 15/1617.7
9.759.404B94SKSKA-311 15/1619.7


QD Sheaves for “B” V-Belts – Cast Iron, Heavy Duty, Bushed, 3 and 4 Groove

* = Small O.D. sheaves used heavily in the oil industry. Note: Cast iron sheaves may not exceed 6500FPM. This speed does not specify if dynamic balancing (2 plane) is required.
O.D. P.D. Catalog # Bush Type K L Weight (lbs)
5.405.003C50SDSDA-11 1/41 13/168.4
5.405.00*3C50SKSKA-11 1/41 13/168.4
6.005.603C56SDSDA-11 5/161 13/1611.2
6.406.003C60SFSFA-17/81 15/1610.1
7.407.003C70SFSFA-11 5/162 1/1615.9
7.907.503C75SFSFA-11 5/162 1/1618.0
8.408.003C80EEB-11 3/42 3/420.9
8.908.503C85EEB-11 3/42 3/424.5
9.409.003C90EEB-11 3/42 3/427.1
9.909.503C95EEB-11 3/42 3/429.1
10.4010.003C100EEB-21 3/42 3/430.1
10.9010.503C105EEB-21 3/42 3/430.8
11.4011.003C110EEB-31 3/42 3/432.9
12.4012.003C120EEB-31 3/42 3/438.4
13.4013.003C130EEB-31 3/42 3/442.4
14.4014.003C140EEB-31 3/42 3/441.7
5.405.004C50SDSDA-11 1/41 13/1610.2
5.405.00*4C50SKSKA-11 1/41 13/1610.2
6.005.604C56SDSDA-11 5/161 13/1613.9
6.406.004C60SFSFA-17/81 15/1612.0
7.407.004C70SFSFA-11 9/162 1/1618.0
7.907.504C75SFSFA-11 9/162 1/1620.5
8.408.004C80EEA-122 3/424.0
8.908.504C85EEA-122 3/427.3
9.409.004C90EEA-122 3/430.7
9.909.504C95EEA-122 3/434.9
10.4010.004C100EEA-222 3/438.1
10.9010.504C105EEA-222 3/435.8
11.4011.004C110EEA-322 3/438.4


QD Bushings / Hubs

Bushing A B D E L Bolt Required Cap Screw G5, Qty Cap Screw G5, Size Set Screw Size
SH 7/16 1.871 2 11/16 7/8 1 5/16 2 1/4 3 1/4 × 1 3/8 1/4
SD 7/16 2.187 3 1/8 1 3/8 1 13/16 2 11/16 3 1/4 × 1 7/8 1/4
SK 9/16 2.812 3 7/8 1 3/8 1 15/16 3 5/16 3 5/16 × 2 3/8 5/16
SF 5/8 3.125 4 5/8 1 7/16 2 1/16 3 7/8 3 3/8 × 2 3/8
E 7/8 3.834 6 1 7/8 2 3/4 5 3 1/2 × 2 3/4 3/8


QD Bushings / Hubs

* = Shallow Keystock – Keystock supplied with bushing. ** = Oversize Key. Note: SH, SD, SK, SF, E Bushings are machined out of ductile iron. A rectangular key is supplied with bushings that have shallow keyseats. This key will fit the standard depth keyseat on the shaft and the shallow keyseat on the bushing. All bushings include a set screw over the keyway.

(Hubs & Sheaves by MasterDrive)

Bushing Bore Range (inches) Key Seat (inches)
SH1/21/8 x 1/16
SH5/8, 3/4, 7/83/16 x 3/32
SH15/16, 1, 1 1/81/4 x 1/8
SH1 5/16, 1 3/85/16 x 5/32
SH1 7/16, 1 1/2, 1 5/83/8 x 1/16*
SD5/8, 3/4, 7/83/16 x 3/32
SD15/16, 1, 1 1/8, 1 1/41/4 x 1/8
SD1 1/4*, 1 5/16, 1 3/85/16 x 5/32
SD1 3/8*, 1 7/16, 1 1/2, 1 5/83/8 x 3/16
SD1 3/43/8 x 1/8*
SD1 7/81/2 x 1/16*
SD2No Key
SK3/4, 7/83/16 x 3/32
SK1, 1 1/8, 1 1/41/4 x 1/8
SK1 1/4*, 1 5/16, 1 3/85/16 x 5/32
SK1 5/16*, 1 3/8*, 1 7/16, 1 1/2, 1 5/83/8 x 3/16
SK1 3/43/8 x 3/16
SK1 3/4**, 1 7/8, 2, 2 1/81/2 x 1/4
SK2 1/41/2 x 1/8
SK2 1/4**, 2 5/16, 2 3/8, 2 7/16, 2 1/25/8 x 1/16*
SF1 1/8, 1 1/41/4 x 1/8
SF1 3/85/16 x 5/32
SF1 3/8**, 1 1/2, 1 5/83/8 x 3/16
SF1 3/43/8 x 3/16
SF1 13/16, 1 7/8, 1 15/16, 2, 2 1/161/2 x 1/4
SF2 1/8, 2 1/41/2 x 1/4
SF2 1/4**5/8 x 5/16
SF2 1/25/8 x 3/16*
SF2 5/85/8 x 1/16*
SF2 7/83/4 x 1/16*
E1 3/85/16 x 5/32
E1 3/8**, 1 7/16, 1 1/2, 1 5/83/8 x 3/16
E1 3/43/8 x 3/16
E1 7/8, 1 15/16, 21/2 x 1/4
E2 1/8, 2 1/41/2 x 1/4
E2 1/4**, 2 3/8, 2 1/25/8 x 5/16
E2 5/85/8 x 5/16
E2 7/8, 33/4 x 1/8
E3 3/87/8 x 1/16*

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