FLEXSTEEL. Selection chart

Transcription

1 FLXSTL 0108

2 FLXSTL Selection chart Fig. 1 Single disc pack Fig. 1 Double disc pack asic shape in S Flexsteel is a zero backlash coupling which uses a disc pack ade of stainless spring steel as a drive eleent, torsionally stiff, but axially and angulary flexible, to copensate shafts isalignents. Two etal hubs are connected to the discs pack by icroetric precision bushings and highly resistant screws. FLXSTL: the advantages of the syste 1) Zero backlash, key factor for use on synchronous achines or for achines with frequent starts, stops and reversing or for all applications where the position control in both directions is essential to guarantee the accuracy of the operation. 2) Torsional stiffness: the design of the disc pack guarantees high torsional stiffness, key factor for applications on packaging achines, servootors, printing presses, winders, achine tools and autoations. 3) igh torque density and low ass oent of inertia: possible further inertia reduction with alluiniu claping hubs available for types R, S. 4) igh shaft isalignent copensation with low restoring forces (fig. 2). 5) igh teperatures: Flexsteel is % etal ade and is therefore suitable for use in difficult environents, with teperatures up to 240, for exaple in applications on high teperature liquid pups. The use over 80 ust be specified in the order. 6) igh speeds: Flexsteel is achinered with very close concentricity and perpendicularity anufacturing tolerances and is therefore suitable for high speed applications, even in the presence of irregular torques; in addition, the angular velocity is constant. 7) Long aintenancefree life: the disc pack produces a perfect force distribution and the close anufacturing tolerances eliinate backlash. This gives Flexsteel couplings a very long life and ensures there is alost no wear. The flexibility of the discs pack also reduces the transission of vibrations through the drive, which safeguards it and reduces its wear. Furtherore, it is not necessary to lubricate or clean the coupling. Selection chart of the available types / sizes ow to order Flexsteel series of couplings have been designed with odular coponents, therefore they can be adapted for a wide nuber of applications. 1) Single or double disc pack. The Flexsteel 1 series (fig. 1) has been designed with a single disc pack and two hubs; it can be used to copensate for shaft axial and angular, but not radial, isalignents. This series guarantees the highest torsional stiffness. The Flexsteel 2 series (fig. 1) has been designed with two disc packs, one spacer and two hubs. It can copensate axial, angular and radial shaft isalignents. The Flexsteel 2 series can be supplied with several lengths (to specify in the order) of the spacer, which allow different radial isalignents. special support has to be produced in case of vertical ounting with long spacers (fig. 3). 2) of the Flexsteel couplings: see table 1, botto of the page for available sizes and types. The hub shapes R, S allow larger bore sizes and ay be selected when the selection key factor is the shaft diaeter (fig. 1). 3) Flexible (F) or Large (L) disc pack selection (fig. 2) Mediu transissible torque ediu torsional stiffness F Flexible pack copensates up to 1 angular isalignent for single disc pack couplings, 2 for double disc pack couplings in the size range and 0.5 for single disc pack, 1 for double disc pack coupling in the size range igh transissible torque high torsional stiffness L Large pack copensates up to 0.70 angular isalignent for single disc pack couplings, 1.4 for double disc pack couplings in the size range and 0.4 for single disc pack coupling, 0.8 for double disc pack coupling in the size range Not available in the configuration in. 4) ub type (fig. 1) F: basic shape, pilot bore or key hubs. The key hub is not recoended in backlash free transissions. Disc pack radial disounting without hubs displaceent. D: flange shaped hub. Need of axial flange displaceent to radial disc pack disounting. : shaft to hub claping with 3part shrink disc. Radial disc pack disounting needs the release and axial displaceent of the shrink disc. VI V WI W: direct claping on the shaft with 2part shrink disc. Disc pack radial disounting without axial displaceent of the shrink disc. Need of shaft tolerances together with the order. L M: hub with internal odular claping eleent. Disc pack radial disounting needs axial displaceent of the claping eleent only for types L2, M2; not necessary for types, M1 (see table 1, botto of the page). N P: claping hub with radial tightening screws. Disc pack radial disounting without hubs displaceent. R S: low inertia jubo aluiniu claping hub with one radial tightening screws allows larger axiu bore. Short in length. Need of axial hubs displaceent to disount the disc pack. vailable with F pack only. ORDR FORM D1 1 D1 2 FLXST 89 L FLXSTL2 = 118 F 50 50

3 Fig. 1 ubs types... follow F D, M1 FLXSTL available types and sizes TL 1 in D D in F in L2 F L F L F L F L F L F L F L F L F L F L F L F L F L 40 X X X 53 X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X 295 X X X X X X X X X X X X X X X X 345 X X X X X X X X X X X X X X X X M1 M1 in M2 M2 in N P P in R S S in V W in W F L F L F L F L F L F L F L F L F L F L F L F L F L 40 X X X 53 X X X X X 56 X X X X X X X X 73 X X X X X X X X 93 X X X X X X X X X X X X X X X X X X X X X 238 X X X X 295 X X X X 345 X X X X 3

4 FLXSTL Technical data Fig. 1 ubs types L2, M2 N P R S V, W VI, WI 4 noinal torque screws size screws tightening torque ax speed FLXSTL F, high flexibility Flexsteel 1 single disc pack isalignent inertia torsional stiffness spacer lenght Flexsteel 2 double disc pack isalignent inertia torsional stiffness T * Ts V ** rad ax. ang J K rad ax. ang J K *** N N rp ± ( ) Kg ² 10 6 N/rad ± ( ) Kg ² 10 6 N/rad , ,4 1 0, , ,2 0, ,007 0, ,3 0, , ,4 1 0, , ,3 0, ,056 0, ,4 0, , ,4 1 0, ,11 14,3 0,2 0,8 2 0, ,056 31,2 0,3 0, , ,5 1 0, , ,8 0, ,056 1,1 2 1,5 0, ,047 2,2 0, , ,5 1 0, , , , ,071 37,6 0,4 0,0022 0, ,0025 0, ,6 1 0,016 0, ,1 1,2 2 0,0026 0,089 1,5 0,0027 0,086 2,1 0,0028 0, ,6 1 0,0016 0,20 20,6 0,3 1,2 2 0,0023 0, 46,3 0,5 0,0080 0, ,8 1 0,0059 0,34 1,4 0,0091 0,154 1,6 2 2,1 0,0095 0, ,8 0,0099 0, ,7 0,018 0, ,014 0,50 1,5 0,021 0,233 2,1 2 2,1 0,022 0, ,8 0,023 0,216 1,4 0,052 0, ,2 1 0,035 0,71 2,1 2,5 2 0,054 0, ,8 0,056 0, ,4 1 0,084 1,26 2 0,12 0,587 2, ,7 0,13 0, ,34 1, ,7 1 0,23 2, ,6 3,4 2 0,35 1, ,8 0,36 1, ,1 0,5 0,70 6, ,4 1,07 2,787 2, ,8 1,10 2, ,6 2,62 3, ,3 0,5 1,75 8, ,8 2,6 1 2,64 3, ,2 2,68 3,847 * Flexsteel allows at least 1,75 ties the noinal torque for short periods of tie ** see fig. 7, 8 page 7 *** torsional angle [ ] = 180 T p k

5 Fig. 2 vailable disc packs 1 1 Fig. 3 F size F size L size L size Flexible disc pack llen screws Mediu transissible torque Max. angular isalignent: 1 Flexible disck pack exagonal head screws Mediu transissible torque Max. angular isalignent: 238: 1 / : 0,5 Large disc pack llen screws igh transissible torque Max. angular isalignent: 0,7 Large disc pack exagonal head screws igh transissible torque Max. angular isalignent: 238: 0,7 / : 0,4 Support for vertical ounting with long spacers noinal torque screws size screws tightening torque FLXSTL L, high transissible torque ax speed Flexsteel 1 single disc pack isalignent inertia torsional stiffness spacer lenght Flexsteel 2 double disc pack isalignent inertia torsional stiffness T * Ts V ** rad ax. ang J K rad ax. ang J K *** N N rp ± ( ) Kg ² 10 6 N/rad ± ( ) Kg ² 10 6 N/rad 60,2 0,6 0, , ,4 0,7 0, ,188,2 1,1 0,8 1,4 0, ,069,2 1,5 0, ,063 70,4 0,7 0,0025 0, ,5 0,7 0,016 0,246 80,4 0,8 0,0026 0, ,4,4 1,1 0,0027 0,108,4 1,6 0,0028 0,103,8 1,1 0,0091 0, ,6 0,7 0,0059 0,422,8 1,5 1,2 1,4 0,0095 0, ,8 2,1 0,0099 0,181,4 1 0,021 0, ,7 0,7 0,014 0,677,4 1,5 1,4 1,4 0,022 0, ,4 2 0,023 0, ,052 0, ,8 0,7 0,035 0,940 1,5 1,6 1,4 0,054 0, ,056 0, ,7 0,084 1,766,4 1,5 0,12 0, ,4 180,4 2 0,13 0, ,4 1,4 0,34 1, ,2 0,7 0,23 2, ,4 1,9 2,4 1,4 0,35 1, ,4 2,7 0,36 1, ,8 0,4 0,70 7, ,4 1,2 1,07 3,495 1,6 0,8 250,4 1,5 1,10 3, ,4 1,3 2,62 4, ,9 0,4 1,75 10, ,4 1,5 1,8 0,8 2,64 4, ,4 1,8 2,68 4,739 * Flexsteel allows at least 1,75 ties the noinal torque for short periods of tie ** see fig. 7, 8 page 7 *** torsional angle [ ] = 180 p T k 5

6 FLXSTL FLXSTL coupling size selection In order to select a FLXSTL coupling correctly, first find the correct service factor (f S ) and then divide the FLXSTL noinal torque (see T value on the technical data table) by the service factor. The transitted torque ust always be less than. The f S service factor accounts for the shaft isalignent (f 1 ), the type of operating achine (f 2 ), and the teperature factor (f 3 ), so that f S = f 1 x f 2 x f 3 (see the paragraphs below). Misalignents and the isalignent factor f 1 The axiu isalignents in the technical data table cannot coexist at the sae tie. Therefore, the presence of an axial isalignent Dax reduces the possibility of offset isalignent Drad and angular isalignent Dang, as in the table (fig. 4). oupling size selection The cobined total angular isalignent DTOT is a function of the angular isalignent Dang and offset isalignent Drad of the shafts, according to the following forula: The values and () are given in the overall diensions table. The isalignent factor f 1 is a function of the % of DTOT as in the diagra (fig. 5). LOD FTOR f 2 for achines operated by electric or hydraulic otors, or stea or gas turbines. OPRTIN MIN load factor f 2 gitators and centrifuges for the cheical industry: low inertia and light liquids 1.1 gitators and centrifuges for the cheical industry: high inertia or seiliquid aterials 1.75 ontinuous casting, shears, wire drawings 2.5 entrifugal copressors, turbo copressors 1.5 Reciprocating copressors 2.5 xtruders and ixers for plastic aterials 1.75 Rotating ovens 2 Mining crushers 3 Welding generators 1.75 enerators, continuous duty 1.1 Rolling and washing achines 1.75 Packaging and bottling achines 1.5 eraic achines 2.5 Paper achines and textile achines 2 Woodworking achines 1.5 Machine tools: ain drives 1.75 Machine tools: auxiliary drives 1.1 levators and cranes 2 Mills 2.5 onveyors 1.5 entrifugal pups: low inertia and light liquids 1.1 entrifugal pups: high inertia or seiliquid aterials 1.75 Reciprocating pups 2.5 ear pups 1.5 Presses 3 lowers: low inertia 1.1 lowers: high inertia, cooling towers 2 The load factor f 2 ust be increased: f for achines operating by piston engines with 4 or 5 pistons. f for achines operating by piston engines with 6 pistons or hydraulic turbines or with start torque > 2. repetitive high peak torque applications: non reversing duty: T > Peak torque reversing duty: T > 1.5 Peak torque. Teperature factor f 3 FLXSTL are unaffected by teperatures up to 160. For higher teperatures, you ust take to into account the teperature factor f 3 (fig. 6). The use with teperatures over 80 ust be specified in the order. 6

7 Misalignent diagra Misalignent factor f 1 D RD. [%] Offset isalignent Fig ngular isalignent 75% 50% 25% D N. [%] D X. [%] xial isalignent f 1 Misalignent factor 1.2 Work preferential area % 50% 60% 80% % D tot. [%] Note: llowance should be ade for any oveent (for exaple theral oveents) which ay occur during operations. Fig f 3 Teperature factor Teperature factor f 3 The use with teperatures over 80 ust be specified in the order Working teperature Fig [ ] alancing The balancing class of the standard eleents is Q 6,3 VDI 2060 ediu speeds. alancing is recoended only over speed curve of figure 7 and 8. rp alancing not necessary FLXTL 1 Dynaic balancing suggested rp Fig. 7 Fig alancing not necessary FLXTL 2 Dynaic balancing suggested = Spacer length Flexsteel is a coponent which can be installed only onto achines in confority to the existing directives. To prevent daages to people or to achinery: only specialists should work on our units; all the oving parts ust be covered; repeated tightening ay decrease the locking effect of the hexagon nuts: replace the when necessary. This publication cancels and replaces any previous edition and revision. We reserve the right to ipleent odifications without notice. 7

8 FLXSTL Overall diensions FLXSTL pilot bore ax bore D D1 7 D3 7 D F 1 6 W * , , * 32,5 24,5 24,5 24,5 39,5 34,5 39,5 39,5 39,5 39, ,5 70, * ,5 5 6x , ,5 6 6x x , x , , x , * 90* x x n x l x * D1 ax. with keyway according to DIN6885/3 ** Use axiu bores D1 and D3 for unifor load. For heavy duty class, axiu bore: n For D: = 306 l For D: = D1 = 1,45, D3 = 1 1,45 F: basic shape, pilot bore or key hubs. The key hub is not recoended in backlash free transissions. Disc pack radial disounting without hubs displaceent. in L D1 D1 D1 F 8

9 (for technical data see pages 4 and 5) D F PK F PK L spacer lenght spacer lenght * L L2 L3 L6 L7 * L L2 L3 L6 L7 2,9 6,9 7,5 8,8 10, , , , , , ,2 110,2 56, , ,2 139,2 104,7 70,2 85,2 86,5 32,5 7,6 86,6 32, , ,2 179,2 144,7 110,2 125, , ,2 219,2 184,7 150,2 165,2 37,6 127,6 71, , , , ,4 133,4 96, , ,4 160,4 123,4 86,4 104, ,4 190,4 153,4 116,4 134, ,4 230,4 193,4 156,4 174,4 46,3 156,3 90, ,8 210,8 165,8 120,8 144,8 120,4 54,4 10,8 120,8 54, ,8 250,8 205,8 160,8 184, ,8 290,8 245,8 200,8 224, ,4 220,4 171,4 122,4 154, ,2 132,2 66, ,4 260,4 211,4 162,4 194, ,4 300,4 251,4 202,4 234, , ,2 195,2 320,4 244,4 168,4 83,2 208, ,4 360,4 284,4 208,4 248, ,4 392,4 283, , , , , ,4 323,4 214, , ,4 502,4 393,4 284,4 334, , ,2 348,2 520,4 382,4 132,2 304, ,4 570,4 432,4 294,4 354, ,4 624,4 450,4 352, , , ,4 250,4 432,4 650,4 476,4 302,4 160,4 378, ,4 700,4 526,4 352,4 428,4 L 1 D: flange shaped hub. Need of flange axial displaceent, to radial disount the disc pack. L6 L7 3 D in 3 D 3 L7 6 D7 1 W1 6 W1 D1 F 1 D3 1 L3 D3 * = vailable up to 3000 upon request 6 D7 1 D7 1 W1 9

10 FLXSTL Overall diensions FLXSTL R S PK F pilot bore F2 D D2 7 5 W W2 * L ax , , ,8 93 * = vailable up to 3000 upon request , , , ,3 52,9 64, , ,6 74,8 90,6 Type R S vailable bore sizes () / Transissible torque (N) without keyway for h7 shafts Ts (N) = laping hub screw tightening torque TS N R S: low inertia jubo aluiniu claping hub with one radial tightening screw allow larger axiu bore. Short in length. Need of axial hubs displaceent to disount the disc pack. vailable with F pack only. R L R S New! F2 S in S D D D Patent Pending W W 5 W W 10

11 (for technical data see pages 4 and 5) pilot bore Type N P vailable bore size () / Transissible torque (N) without keyway for h7 shafts TS N , , , Ts (N) = laping hub screw tightening torque FLXSTL N P PK F spacer lenght N P: claping hub with radial tightening screws. Disc pack radial disounting without hubs displaceent. PK L spacer lenght D D6 7 F 4 Y W * L * L ax ,5 2,9 36, , , , , ,2 110, ,5 70, ,5 7, ,2 139,2 86,5 7,6 86,6 179,2 179,2 219,2 219,2 37,6 127, ,4 160, , , , , ,4 190,4 190,4 230,4 230,4 46,3 156, ,5 10,5 10,4 210,8 210,8 120,4 10,8 120,8 250,8 250, ,8 290, , , ,4 220, ,2 132,2 260,4 260, ,4 300,4 * = vailable up to 3000 upon request N L Y 4 W P in Y W P Y W D6 D6 D6 F 11

12 FLXSTL Overall diensions FLXSTL : shaft to hub claping with 3part shrink disc. Radial disc pack disounting needs the release and axial displaceent of the shrink disc. ONX SD 1 D4* M N R S 1 Ts T N N ,5 l 69, , , , , ,5 s 87, , , , Shaft and hub bore fit tollerances D4*: Ø 65 Ø 105 = g66 / Ø 110 Ø 200 = g67 Ts (N) = laping eleent screws tightening torque T (N) = Peak torque transissible by the claping eleent laping eleents ONXSD 142 SD SD 90 SD SD SD SD ,8 295 SD SD ,2 PK F spacer lenght * 55 L * = vailable up to 3000 upon request l V = 3,5 s V = 5,5 6 V = 4 PK L spacer lenght * L 181 l 226 l,4 226,4 l ,2 138,2 266 l,4 266,4 l l 180,4 306,4 l s 261 s s s s s 320,4 320, ,2 195, ,4 360, ,4 392, , , , ,4 502, ,4 400, , , , ,4 510, ,4 520, ,2 348, ,4 570, ,4 624, , ,4 250,4 432,4 650, ,4 700,4 L 1 R S 1 in 1 R S SD SD SD R S V 1 D4 M N D4 M N D4 M N L 12

13 (for technical data see pages 4 and 5) Patent Pending FLXSTL VI V WI W ONX S D8* N P R S V 3 Ts T N N , , * Shaft and hub bore fit tolerances D8: h67 Ts (N) = laping eleent screws tightening torque T (N) = Peak torque transissible by the claping eleent laping eleents ONXS 168 S S S S 95 S 110 S S 130 S S * = vailable up to 3000 up on request 20, ,2 PK F spacer lenght PK L spacer lenght * 0 1 * ,4 320, ,2 195, ,4 360, ,4 298, , , , ,4 408, ,4 350, , , , ,4 460, ,4 418, , ,4 468, ,4 426, ,2 254, ,4 476, ,4 534, , ,4 584, ,4 490, , ,4 298,4 516, ,4 566,4 32, ,4 610, , ,4 418,4 636, ,4 686,4 VI V WI W: direct claping on the shaft with 2part shrink disc. Disc pack radial disounting without axial displaceent of the shrink disc. Need of shaft tolerances together with the order. VI 0 1 V WI W S V V S S V V S 3 3 N D8 D8 N N D8 D8 N 3 R P 3 R P 13

14 FLXSTL Overall diensions (for technical data see pages 4 and 5) FLXSTL L M ax PK F PK L type D5* 1 F V X 1 T Z 2 Ts L4 L5 L4 L5 N L ,5 25, ,5 28,5 40, ,9 57,9 M ,2 86, ,2 115,2 70, , ,5 30,5 40, ,5 62,5 7,6 62,6 M1 155,2 155,2 195,2 195,2 31,2 97, L ,2 126,2 70, ,5 73,5 7,6 73,6 M2 166,2 166,2 206,2 206,2 37,6 126, ,4 159, , , , , , ,4 M1 189,4 189,4 229,4 229,4 37,6 126, ,4 159,4 L ,5 25, ,5 70, , , , ,4 M2 189,4 189,4 229,4 229,4 46,3 116, ,8 170,4 116, ,5 18, ,4 80,4 10,8 80,8 M1 210,8 210, ,8 250,4 46,3 134, L2 188,8 188,4 116, , ,4 98,4 10,8 98,8 M2 228,8 228, ,8 268, ,4 191,4, ,5 26, , ,2 103,2 M1 231,4 231, ,4 271, ,4 219,4, ,5 36, , ,2 131,2 M1 259,4 259, ,4 299, M1 166, ,5 36, , M1 198, ,5 36, , D5* = Shaft fit tollerance h8 Ts (N) = laping eleent screws tightening torque FLXSTL L M vailable bore sizes () / Peak torque transissible (N) by the claping eleent for h8 shafts D T N T N T N T N T N T N T (N) = Peak torque transissible by the claping eleent 7237 T N L M: hub with internal claping eleent. Disc pack radial disounting needs axial displaceent of the claping eleent only for types L2, M2; not necessary for types, M1 (see table 1 page 3). L2 M1 in M2 in M1 L4 X V V X L5 1 X V L5 V X M2 Z T D5 Z T D5 Z T D F X 1 V V X

15 FLXSTL Mounting and operating instructions The full screws tightening torque ust be set by a torque wrench in further steps and checked after soe hours of service, according to the catalogue values for the couplings and claping eleents. fter ounting the diension ust be kept with alligned shafts in order to prevent disc pack axial pretensioning. Nut tightening openend torque wrench ±0.2 Screw blocking allen spanner Nut tightening torque wrench ±0.2 Screw blocking openend spanner PRFRNTIL TITNIN LTRNTIV TITNIN void the twisting of the disc pack when tightening the screws! Nut blocking openend spanner Screw tightening torque wrench Screw tightening torque wrench Nut blocking openend spanner ow to easure: axial, offset, angular isalignents Offset reased rease free reased xial ngular 0.04 Mounting with outside and internal hubs + spacer (where required) 0.04 ored perissible axiu runout 15

16 Product Lines: onex laping leents Midas laping leents and Tiing elt Pulleys Metalflex ellow ouplings Flexsteel Disc Pack ouplings Securex Standard Z Torque Liiters opolastic lastic ouplings OMPOM S.p.. Via runo uozzi, DRINO ranarolo ilia (ologna) Italy tel. 051/ fax 051/ info@copoac.it opogear Nylon ear ouplings Jason cculink djustable length Velts