Wire Ropes, Elements and Definitions - Wire Ropes: Tension, Endurance, Reliability - page 41

Table 1.8 Ratio of wire diameter d to nominal rope diameter d for ropes with measured diameter d m = 1.025 d, and fill factor f, Jenner ( 1992 )

6-strand ropes 8-strand ropes

Filler Seale Warrington Warr.-

Seale

Filler Seale Warrington Warr.-

Seale

Wire ropes with fibre core
Fill factor

f 0.506 0.492 0.502 0.508 0.456 0.443 0.452 0.458

Strand d 0 /d 0.06839 0.08851 0.07100 0.06103 0.05626 0.07280 0.05842 0.05021

di/d 0.06732 0.04540 0.06986 0.04663 0.05539 0.03735 0.05748 0.03836

d 2 /d 0.06324 0.07862 0.07223 0.04458 0.05202 0.06468 0.05943 0.03668

0.02765 - 0.05473 0.03444 0.02275 - 0.04503 0.02833

d 3 /d - - - 0.05579 - - - 0.04590

Wire rope with steel core
Fill factor f 0.627 0.616 0.623 0.628 0.631 0.620 0.625 0.630
Centre strand do/d 0.05403 0.05555 0.05403 0.05337 0.06627 0.06682 0.06627 0.06559
di/d 0.05134 0.05277 0.05134 0.0507 0.06291 0.06342 0.06291 0.06234
1. Strand layer d 0 /d 0.04311 0.04344 0.04311 0.04301 0.05551 0.05585 0.05551 0.05563
di/d 0.04092 0.04126 0.04092 0.0408 0.0527 0.05302 0.05270 0.05283
2. Strand layer do/d 0.07025 0.09092 0.07294 0.06263 0.05786 0.07496 0.06010 0.05160
di/d 0.06916 0.04664 0.07176 0.04789 0.05696 0.03833 0.05909 0.03940
d 2 /d 0.06496 0.08076 0.07420 0.04579 0.05349 0.06670 0.06111 0.03772
0.02840 - 0.05622 0.03535 0.02344 - 0.04631 0.02910
d 3 /d - - - 0.05724 - - - 0.04712
Strand lay angle b = 20, outer wire lay angle a = 15, strand clearance (s S /d S ) FC = 0.05, (s S /d S ) WRC = 0.01, clearance outer wire layer s w /d 1 = 0.02,
clearance first wire layer S W = 0