FLENDER Standard Couplings Torsionally Rigid Gear Couplings — ZAPEX ZW Series © Siemens AG 2015 Customized hub design for ZAPEX ZW Series ■ Selection and ordering data ZAPEX couplings can be provided with customized S-dimen- sions and hub lengths. SF1 and SF2 can be chosen different on customer request, how- ever the minimal and maximum values of the following table have to be observed. Within these limits the measurements SF1 and SF2 may be chosen freely. The entire dimension S results from the sum of the individual measurements SF1 and SF2. SF1 and SF2 are the measure- ments from the interstice of the coupling ring flange up to the beginning of the respective hub.
As standard SF1 and SF2 are identical to each other and the entire S-dimension arises in accordance with them. The distance VA of the coupling teeth, the permitted bore diam- eter and the hub diameter remain unchanged. By stating the hub S-dimension and both hub lengths the cou- pling is completely described. Part 2 Part 1 Interstice 4 S = SF1 + SF2 SF1 min. SF2 max. NL Special NL Standard NL Special S = SF1 + SF2 NL Standard G_MD10_EN_00184 SF1 max. SF2 min. Part 2 Part 1 Interstice Geometric data Maximum dimension SF1 or SF2 max.
Article number The Article number of the respective ZAPEX coupling type must be supplemented with "-Z" and order codes for no standard SF- dimensions (order code "Y38" for part 1 and "Y39" for part 2). For no standard hub lengths the order codes "Y40" to "Y49" must be specified (see the table below). mm 23 30.5 36.5 43 49.5 54 62.5 71 79 94 103 127 146 160 Ordering example: ZAPEX coupling ZWN 175, variant A Hub left: bore D1 = 70H7 mm, keyway to DIN 6885-1 P9 and set screw; NL1 = 160 mm; SF1 = 10 mm Hub right: bore D2 = 75H7 mm, keyway to DIN 6885-1 P9 and set screw; NL2 = 100 mm; SF2 = 25 mm Article No.: 2LC0300-3AA99-0AA0-Z L1G M1H Y38 Y39 Y41 Y46 Plain text to Y38 :
SF1 = 10 mm Plain text to Y39 : SF2 = 25 mm Plain text to Y46 : NL1 = 160 mm Plain text to Y41 : NL2 = 100 mm The minimal hub lengths are not to fall below the standard hub lengths. If there's no other possibility, at the hub lengths smaller than standard hub length the order codes "Y50" for part 1 and "Y51" for part 2 must be stated in plain text.
Order code for hub prolongations (Y4.); Std-NL = Standard hub length Part 1 Selected (special) hub length order code Y40 (specification of hub length in plain text) Y42 (specification of hub length in plain text) Y44 (specification of hub length in plain text) Y46 (specification of hub length in plain text) Y48 (specification of hub length in plain text) Part 2 Selected (special) hub length order code min. > Std-NL > 1.25 · Std-NL > 1.5 · Std-NL > 1.75 · Std-NL > 2 · Std-NL 4/19 Siemens MD 10.1 · 2015 Size Standard hub length Minimal dimension NL SF1 or SF2 Standard min.
mm mm 112 50 3 128 60 3 146 75 3 175 90 4 198 100 4 230 110 4 255 125 5 290 140 5 315 160 5 342 180 6 375 200 6 415 220 6 465 240 8 505 260 8 min. max. > Std-NL ≤1.25 · Std-NL > 1.25 · Std-NL ≤1.5 · Std-NL > 1.5 · Std-NL ≤1.75 · Std-NL > 1.75 · Std-NL ≤2 · Std-NL > 2 · Std-NL max. 1.25 · Std-NL Y41 (specification of hub length in plain text) 1.5 · Std-NL Y43 (specification of hub length in plain text) 1.75 · Std-NL Y45 (specification of hub length in plain text) 2 · Std-NL Y47 (specification of hub length in plain text) Y49 (specification of hub length in plain text)