Wright® Hand Hoists Hand Operated Hoists Features and Specifications Covers Impact resistant Lexan resin covers are utilized to protect the gearing and load brake. The covers are designed for protection only and do not support bearings. They can be removed easily for inspection and/or maintenance. Load Chain The zinc plated load chain is close link coil type, electric welded alloy steel and is heat treated for wear and impact resistance. All links are of uniform size and shape to permit proper seating in the load sheave pockets. The dead end of the chain is securely attached to the hoist in a manner which will permit ease of replacement. Hooks The hooks are drop forged, heat treated, ductile, alloy steel, and equipped with spring latches. The lower hook is supported on a lifetime pre-lubricated thrust bearing which permits the hook to rotate 360 degrees under capacity load. The top hook is free to rotate for easy attachment to support. Overload Limit Device The Wright aluminum hand hoist is furnished with a unique limiting device as an added measure of protection to the load, hoist and operator. The device is installed at the factory for the capacity of the hoist. Load Brake The automatic, cam-actuated, Weston type load brake can hold a capacity load stationary at any position of lift. This brake assures smooth load control with minimal stress and wear. The lining discs are of a non-asbestos composition and require no adjustment for wear during their usable life. Handwheel The deep pocketed, aluminum alloy handwheel is accurately cast to fit the links of the hand chain. The handwheel is protected by an impact resistant Lexan resin cover providing non-fouling hand chain guides. Hand Chain The electric welded close link coil type hand chain is zinc plated. All links are accurately formed for uniform size and shape to permit proper seating in the handwheel pockets. Load Sheave The load sheave is of nodular iron with deep cast pockets to fit the links of the load chain. The load sheave is spline fitted to an alloy steel load shaft and it can be reversed to double its service life. The load shaft is supported on anti-friction bearings which are lifetime pre-lubricated. The one piece steel chain guide guards against the chain jamming between the load sheave and hoist during normal usage. Gear Train Quiet, compact, spur gears use a modified involute stub tooth form and are enclosed in a grease tight chamber. The load gears are fine blanked in steel and pinions are extruded steel. The load shaft is splined for attachment of load wheel. The gears are heat treated and surface hardened for wear resistance. All gears and pinions are mounted on anti-friction bearings and bushings which are pre-lubricated for life. The gear train operates in a grease pool and is enclosed under a grease tight cover. Frame The lightweight, rugged, one piece frame is a cast, ductile, shock resistant, aluminum alloy.