Series 51 Underhung Head Block

$0.00

Series 51 head blocks are designed to clamp to the bottom of steel beams. Each rigid steel housing contains a multi-groove sheave with a standardized quantity of cable grooves and one purchase line groove. Sheaves are available in cast iron and MD Nylon.
Each assembly is fabricated to fit a specific beam size. Mounting holes are generally located such that the sheave is positioned centered under the support beam. Heavy offset clips and bolts are supplied for attachment to the support structure. Beam flange width and thickness must be specified at time of ordering.

Part No: Series51Hb Category:

Available Options

ThumbnailSKUDescriptionSheave DiameterSheave MaterialGuide SpaceGroove QtyCableBearingWLL
6851N198" MD Nylon8"MD Nylon63/16"1" BB1200#
7851C258" Cast Iron8"Cast Iron71/4"1" TRB1800#
7851N258" MD Nylon8"MD Nylon71/4"1" TRB2000#
61051N1910" MD Nylon10"MD Nylon63/16"1" BB1400#
71251C2512" Cast Iron12"Cast Iron71/4"1" TRB1800#
71251N2512" MD Nylon12"MD Nylon71/4"1" TRB2400#
101251C2512" Cast Iron12"Cast Iron101/4"1" TRB1800#
101251N2512" MD Nylon12"MD Nylon101/4"1" TRB2400#

Notes:

BB - Sealed precision ball bearings TRB - Tapered roller bearings All sheaves include one grooove for 3/4" purchase line. *Weight in pounds @ 300ft/min

Available Options

ThumbnailSKUDescriptionSheave DiameterSheave MaterialGuide SpaceGroove QtyCableBearingWLL
6851N198" MD Nylon8"MD Nylon63/16"1" BB1200#
7851C258" Cast Iron8"Cast Iron71/4"1" TRB1800#
7851N258" MD Nylon8"MD Nylon71/4"1" TRB2000#
61051N1910" MD Nylon10"MD Nylon63/16"1" BB1400#
71251C2512" Cast Iron12"Cast Iron71/4"1" TRB1800#
71251N2512" MD Nylon12"MD Nylon71/4"1" TRB2400#
101251C2512" Cast Iron12"Cast Iron101/4"1" TRB1800#
101251N2512" MD Nylon12"MD Nylon101/4"1" TRB2400#