Standard Loadblock Typical Design Features

• Designed in accordance with CMAA #70

• Available in almost any capacity

• Case hardened sheave grooves – 400 BHN minimum hardness

• Tapered roller sheave bearings with Nilos seals locked into place with AN locknuts

• Each set of sheave bearings have an individual grease ports to ensure all bearings are supplied with the appropriate supply of grease

• Sheave pin is manufactured from through hardened alloy steel

• Fabricated steel loadblock housing with fixed or rotating trunion

• Hook nut and thrust bearing designed for easy hook rotation

• Top shroud plate to cover sheaves

• Hooks are available as single or duplex (with or without center hole)

• Available with latches (spring type, gravity, or bullard)

• Common options include hook locks, permanently sealed sheave bearings, mounted junction box for attaching a cable from a cable reel, heat shields, hook trammel points, and stainless steel hooks

Power Rotating Loadblock Typical Design Features

• Designed in accordance with CMAA #70

• Available in almost any capacity

• Case hardened sheave grooves – 400 BHN minimum hardness

• Tapered roller sheave bearings with Nilos seals locked into place with AN locknuts

• Each set of sheave bearings have an individual grease ports to ensure all bearings are supplied with the appropriate supply of grease

• Sheave pin is manufactured from through hardened alloy steel

• Fabricated steel loadblock housing with fixed trunion

• Hook nut and thrust bearing designed for easy hook rotation

• Top shroud plate to cover sheaves

• Hooks are available as single or duplex (with or without center hole)

• Available with latches (spring type, gravity, or bullard)

• One-piece housing or separable sheave and power block assemblies.

• Typical hook rotate speed is 1 to 2 rpm

• Typical motor power from ½ thru 5 horsepower, depending on the capacity and application requirements

• Disc brake mounted to the motor to lock the hook in place

• Power transmission system includes enclosed gearing, chain/sprocket, and open gearing

• Slip clutch connected to enclosed gear drive to protect the system from an accidental overload