Efficiency ratings for wire rope end terminations are based upon the catalogue breaking strength of the wire rope.
The efficiency rating of a properly prepared loop or thimble-eye termination for clip sizes 1/8" through 7/8" is 80%, and sizes 1" through 3½" is 90%.
The number of clips shown (see table 1) is based upon using RRL or RLL wire rope, 6x19 or 6x37 Class, FC or IWRC;IPS or XIP. If Seale construction or similar
large outer wire type construction in the 6x19 Class is to be used for sizes 1" and larger, add one additional clip. If a pulley (sheave) is used for turning
back the wire rope, add one additional clip.
The number of clips shown also applies to rotation-resistant RRL wire rope, 8x19 Class, IPS, XIP, sizes 1½" and smaller; and to rotation-resistant RRL wire rope, 19x7 Class, IPS, XIP, sizes 1¾" and smaller.
For other classes of wire rope not mentioned above, we recommend contacting LIFTING & SAFETY SERVICES.
For elevator, personnel hoist, and scaffold applications, refer to ANSI A17.1 and ANSI A10.4 These standards do not recommend U-Bolt style wire rope clip terminations. The style wire rope termination used for any application in the obligation of the user.
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