Series BS (Compact Worm Gear) CBS-1.00GBD0108. Technical Up to - 4 kw / 315 Nm WORM GEARBOX.

Transcription

1 CBS-1.00GBD0108 Series BS (Compact Worm Gear) Technical Up to - 4 kw / 315 Nm WORM GEARBOX

2 SERIES BS PRODUCTS IN THE RANGE Serving an entire spectrum of mechanical drive applications from food, energy, mining and metal; to automotive, aerospace and marine propulsion, we are here to make a positive difference to the supply of drive solutions. Series A Worm Gear units and geared motors in single & double reduction types Series B Conex helicoidal gear geometry right angle gearmotors and reducers Series BD Screwjack worm gear unit HTP High torque planetary gear units Series BS Worm gear unit Series C Right angle drive helical worm geared motors & reducers DuoDrive Dual gears on parallel output shafts Series E Economical planetary servo gearboxes Extruder Drive Rugged duty reducer takes high screw pressure Series F Parallel angle helical bevel helical geared motors & reducers Series G Helical parallel shaft & bevel helical right angle drive gear units Series H Large helical parallel shaft & bevel helical right angle drive units Series J Shaft mounted helical speed reducers Series K Right angle helical bevel helical geared motors & reducers Series M In-line helical geared motors & reducers Series P Precision planetary servo gearboxes Roloid Gear Pump Lubrication and fluid transportation pump Series W Precision right angle servo gearboxes Series X Cone Ring Pin and bush elastomer coupling Series X Gear Torsionally rigid, high torque coupling Series X Grid Double flexing steel grid coupling Series X Nylicon Gear coupling with nylon sleeve Series X Torque Limiter Overload protection device We offer a wide range of repair services and many years experience of repairing demanding and highly critical transmissions in numerous industries. We can create custom engineered transmission solutions of any size and configuration.

3 SERIES BS Contacts AUSTRALIA EUROPE ITALY THAILAND David Brown Gear Industries Ltd Franklin Avenue Bulli, NSW 2516 Australia Tel: Fax: CHINA Benzler TBA BV Jachthavenweg 2 NL-5928 NT Venlo Netherlands & the rest of Europe Tel: Fax: Austria Tel: Fax: David Brown Hydraulics Italia S.R.L. Via Del Costruttore, Vignola (MO) Italy Tel: Fax: SOUTH AFRICA David Brown (Thailand) Ltd 700/43 Moo 6 Amata Nakorn Industrial Estate Tumbol Klongtumru Muang, Chonburi Thailand Tel: Fax: David Brown Gear Systems Trading (Shanghai) Co. Ltd No. 218 Xi Zhang South Road, Silver Tower, Suite 1204B Shanghai P.R.China Tel: Fax: DENMARK Benzler Transmission A/S Fuglebævej 3D DK-2770 Kastrup, Danmark Tel: Fax: Germany Tel: Fax: FINLAND Oy Benzler AB Vanha Talvitie 3C FI Helsingfors, Finland Tel: Fax: FRANCE WECO Transmissions SA Tel: Fax: David Brown Gear Industries Ltd 12 Birmingham Street, Benoni Industrial 1500 South Africa Tel: Fax: SWEDEN & NORWAY AB Benzlers Box 922 (Landskronavägen 1) Helsingborg Sweden Tel: Fax: UNITED KINGDOM David Brown Gear Systems Ltd Park Road Lockwood, Huddersfield West Yorkshire, HD4 5DD Tel: +44 (0) Fax: +44 (0) USA Cone Drive 240 East 12th Street Traverse City Michigan USA Tel: Fax:

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5 Contents Technical information... 5 Selection of worm gears and worm geared motors... 6 Order procedure...10 Mounting positions WORM GEARED MOTORS Power ratings - Output speeds...12 Applications Dimensions WORM GEARS Power ratings - Output speeds Dimensions Maximum input speed Gear with Environmental classification Combinationexamples CAD Mounting and maintenance instructions Questionnaire

6 The programme BS BS BS BENZLERS Single input shaft Hollow shaft Single input shaft BS BS BS BENZLERS Output shaft Motorflange Hollow shaft BS BS BS BENZLERS Feet Feet Horizontal BS BS BS Bolt the gear to a wall or foundation without feet or flange Output flange Output flange BS BS BS BENZLERS BENZLERS Double input shaft Double worm gears Double worm gears 4

7 Technical information Benzler worm gears BS have a symmetrical gearhousing manufactured in aluminium. BS 88 and 112 have a gearhousing of cast-iron. The worm wheel is made of centrifugal cast tinbronze and the worm screw is case-hardened and ground. All motor connections are according to IEC-standard and for BS with elastic coupling. This means the following advantages: The worm screw is mounted with two separate bearings and are not connected with the motor bearings. This means longer lifetime and a smoother drive.. Soft start and stop with elastic coupling for size No oil leakage in to the motor. Possibility to change motor without dismounting the gear.. Any type of motor with IEC-flange can be used.. The worm geared motor is available for mounting on a base, flange or torque arm and can be installed in any position. The gear can be combined with Benzlers remaining range of helical and worm gears to provide very low output speeds. All data given in this catalogue applies to ABB standard motors and Benzlers brake motors. Motorflanges The motorflanges up to IEC-size 112 are made of aluminium and are available in B5 and B14, larger motorflanges are made of cast-iron and available in B5. A finished bore shaft coupling is always delivered together with the motorflange. Feet The feet can be mounted without modification. Output shaft Single or double output shaft can be mounted into the hollow shaft. The output shafts are locked into position with keys and retaining rings. BS has as standard execution, a single output shaft or a hollow shaft. Output flange An output flange can easily be mounted on to the gear. The BS gear casing can also be mounted onto a wall or foundation and bolted through the 4 bolt holes in the gear casing. Torque arm bracket The hollow shaft gearboxes can be supplied with torque arm bracket and torque arm. Fan BS 88/112 have fan as an option. Painting BS35-71 is normally delivered without painting. BS can be delivered according to environmental classification M2-M3, see page BS is normally delivered with standardpaint, which is an alkyd paint in Benzler blue colour (RAL 5015). 5

8 Selection of gears and gearmotors Power and torque ratings for gears on page apply to service factor 1.0. Service factor for geared motors can be found after the output speeds. Service factor 1.0 is valid for continous operation 8 hours/day without shocks and with starts per hour. The inertia of the driven machine is less than 20% of the electric motor. Occasional shock loads may not exceed 1.8 times the gear rating at service factor 1.0. Determination of sizes 1. Determine the demand power or torque, P e or T 2b ratio (i) or output speed (n 2 ). 2. Based on type of load/driven machine, operating hours/day and number of starts/hour, select service factor fb (page 6-7). 3. Calculate T 2 T 2b x f b. 4. Choose gear on page according to following: T 2 T 2b x f b at required ratio (i) or speed (n 2 ). Note the efficiency. For example BS40 ratio 6,67:1, code A η = 86% at n 1 = 1430 rpm. 5. Calculate P 1 =P e x f b x 1 η Choose a size larger motor P m P 1 For example P 1 0,42 kw choose 0,55 kw. 6. Choose a worm gear motor on pages For example BS40A with a motor size 80A4. 7. Check that occasional shock loads do not exceed 1.8 times the gear rating at service factor 1.0. T 2max T 2 x 1,8 8. Check that the thrust and overhung loads are not exceeded. 9. Check that maximum input speeds and thermal ratings are not exceeded. 10. For conditions other than above described, for instance extreme environments, high inertia systems or other, please contact your nearest Benzler office. Formulas: T 2b = P e x 9550 n 2 T 2 T 2b x fb P 1 = P e x f b x 1 η P m P 1 T 2max T 2 x 1,8 J e, red = J e x (Nm) (Nm) (kw) (kw) (Nm) n 2 2 ( n1 ) (kgm2 ) T 2 = Output torque rating, Nm page 12-24, 40-47) T 2b = Demand torque, Nm T 2max = Occasional maximum torque, Nm P 1 = Demand input power, kw P e = Demand power driven machine, kw P m = Motor power n 1 = Input speed, rpm n 2 = Output speed, rpm f b = Service factor η = Efficiency of the gear J e, red = Reduced inertia, kgm 2 J e = Inertia driven machine, kgm 2 J m = Inertia motor, kgm 2 Load classification Description Moment of inertia Example I I a II Je, red 0.2 x Jm Machines with uniform load and no shocks Je, red Jm Machines with small shocks and small variations in load Je, red 3 x Jm Machines with moderate shocks and variable load Uniform loaded conveyors and elevators. Centrifugal pumps and fans. Agitators and mixers for liquids and semiliquids without solid particles. Larger conveyors. Reciprocating pumps with 3 or more cylinders. Agitators and mixers for media with high viscosity and/or solid particles. Larger conveyors. Reciprocating pumps with 3 or more cylinders. Agitators and mixers for media with high viscosity and/or solid particles Je, red 10 x Jm Heavy agitators and mixers. Reciprocating pumps with 1 or 2 cylinders. III Machines with very heavy shocks and large masses Crushers, mills and presses. to be accelerated Vibrators and shakers 6

9 Service factor f b Daily operations in hours 4 hours 8 hours 16 hours 24 hours Starts per hour < >200 < >200 < >200 < >200 Load classification I I a II III Ambient temperature factor f t For other ambient temperatures then 20 C, always multiply the thermal rating with the following factors. C Celsius / ft Fan factor f f If the gearbox has no fan and the motor is not directly flanged to the gearbox, multiply the thermal rating with the following factors. Input speed n1 (rpm) f f Control points The forces allowed on the gear shafts are determined by bearing life and strength on gear shafts and housing. Radial forces at no thrust loads.in the power ratings page max. allowed radial force on output shaft is given for each output speed. The value is only valid if the force is applied at the centre of the output shaft.if the force is applied at another position the allowed radial force is given by the following: Radial forces Bearing life: F r,x = a (f + x) F r2 Strength on shaft F r,x = c F r2 x Strength on d F r,x = gear housing: (g + x) F r2max F r F r,x c x F r,x F r2 F r2max = Max. radial force (N) = Radial force acc to power ratings (N). = Upper limit, for radial force. Can not be exceeded (N) a, d, f, g = Internal measures (mm) x = Distance to radial force (mm) c = Half shaft length (mm) Type/Size a c d f g F r2max (N) BS

10 Overhung load If a sprocket, gear wheel or pulley is mounted on a shaft, a load check must be made. The overhung load in middle of the shaft may not exceed values shown in tables below. For calculation of minimum permissible diameter the following formula should be used. D min = 2000 x T 2b x f e x f b Fr2 T 2b = Torque required (Nm) T 2b = P e x n 2 Nm mm P e = Power kw n 2 = Output speed (rpm) F r2 = Permissible overhung load (N) f b = Service factor (tables page 7) f e = 1.10 for sprockets = 1.30 for gearwheels = 1.50 for pulleys D min = Minimum permissible diameter (mm) Max overhung load in the middle of input shaft (N) Gear Ratio Fr1 A B C D E F Fx G H I J K L M BS Max thrust load on output shaft (N) Size Ratio A B C D E F Fx G H I J K L M BS Reversing Dynamic self locking means that a force applied on the output shaft of the gear can not continue to drive the gear when the motor has been stopped. Dynamic self locking is only possible at very high ratios and low output speeds. None of the worm gears produced by BENZLERS is dynamic totally self locking. Static self locking means that a force applied on the output shaft of the gear can not start a movement. When driving loads with high inertia care must be taken to achieve a braking time long enough to prevent overload on the gear. When a worm gear is used in an application with short braking time a worm gear that is "dynamically reversible" is normally the best selection. Information regarding lead angle for BENZLERS worm gears are given on the following page. Reversing as a function of the lead angle γ 25 Total reversing Statically reversible Variable static self locking 8-12 Quick return in case of vibrations Dynamically reversible Statically self locking 5-8 Return in case of vibrations Scant dynamic reversing Statically self locking 3-5 Slow movement return in case of vibrations. Low dynamic reversing Statically self locking 1-3 No return Low dynamic reversing 8

11 Benzlers Worm gear BS, Wormwheel and Wormscrew data i = Ratio z = Starts of worm shaft η s = Starting efficiency γ = Lead angle m = Module η = Running efficiency n1=1430 rpm i γ z m η s η i γ z m η s η 10 A B B S 20 C D E F G A B C D B S 24 E F G H I J K A B C D BS 24 E F FX G H I J A B C D E B S 29 F FX G H I J K Efficiency The efficiency of the gear has to be considered when a worm gear or a worm geared motor is chosen. For intermittent duties it is necessary to increase the motor power to be able to compensate for the low efficiency during start. Also consider that the highest efficiency is reached after Maximum input speed 7.5 A B C D B S 21 E F G H J K A B C D E B S 29 F G H J K L M A B C D E B S 28 F G H J K L M run-in period and under continuous duty. All values given in the catalogue are only valid for a gear after running-in period under continuous duty with service factor 1. If the gear is driven from the output shaft the back driving efficiency is calculated as follows: η - = 2-1 η n1, max i<60:1 112i>60:1 rpm Size 9

12 Questionaire To specify a drive precisely certain data are essential. The most important questions are listed in the table below. If you do not have the required data available in this form, we advice you to use a technical handbook or other suitable documentation. Should you have any question, please do not hesitate to contact us, Benzlers specialists will be pleased to assist you. Load designation Output power (kw): P e at n max at n min Motor Enclosure IP Output speed (RPM): n emax n emin Operating voltage motor (V) brake (V) frequency (Hz) Output torque (Nm): T e at n max at n min Brake torque (Nm) Overhung load (N): F r2e at output shaft at input shaft Axial thrust load (N): F a2e at output shaft at input shaft Ambient factors Ambient temperature ( C) (away + / towards -) Load cycle / Duty cycle S / % ED Moment of inertia (kgm 2 ): at output shaft at input shaft Starting frequency (1/h) Unit type and mounting position (see page 11) Gears and geared motors are described by a code consisting of 10 positions. Positions that aren t used are left empty. Additional information is written clearly. Example of such information is: Output speed, Motor power Connecting voltage for motor and brake (if used) Type of motor at specific request All nonstandard executions that are not described in this catalogue. Example on ordering text: (explanations, see page 11): Gear Motor BS 40 A 2,0H, M= A4-180 B5 214 rpm 0,37 kw / V, 50 Hz Additional information: 10

13 BENZLERS BENZLERS BENZLERS BENZLERS 1 Gear type BS (Worm gear and worm geared motor) 2 Gear size Standard sizes 35,40, 50, 63, 71, 88, 112, 50/40, 63/40, 71/40, 88/50, 112/63 Other combinations and sizes can be achieved. Check with Benzlers. 3 Ratio code A, B, C...FA, FB, FC (2 letters for double wormgears). 4 Mounting position See picture *For execution - code 2 and 3 state flange size, for example M=115, see page Gear Accessories VM = distance ring for different position of terminal box EB = brake on gear KEB = coupling/brake unit (specify type and voltage) F = fan on gear (only BS88 and BS112) DP = double input shaft 6 Input design 2 = free high speed shaft (no motor or flange for motor) 3 = prepared for motor (specify flange and shaft diametres or IEC-standard size) 4 = with motor 7 Motor Acc. to IEC (71A, 71B) 8 Accessories for the motor B = Brake TB = Thermostat protection Th = Thermistor protection FS = Fitted with forced cooling TG = Tachogenerator PG = Encoder 9 Terminal box position Positions acc picture 10 Motorflange B14 = Small flange B5 = Large flange Motor flange B5 Position of terminal box Motor sizes Gear BS 40 45* 45* 45* 45* (i<60) (i>60) BS35 is not available with B5-flange. Mounting positions Hollow shaft U O H-A H-B gear BENZLERS Execution - code 0 Feet and output OV OH OD shaft Execution - code 1 Only output UV UH UD shaft Execution - code 8 Only feet VV VH VD Execution - code 9 Endast Endast Endast BS BS BS Code 9 only for BS40-71 BENZLERS BENZLERS Position of terminal box Standard position 0 Standard position Motor flange B14 Position of terminal box HU-A HN-A HD-A HU-B HN-B HD-B Output flange BS BS BS and shaft OH OV OH Execution - code 2* State M Output flange BS BS BS and hollow shaft OH OV OH Execution - code 3* State M Double gears P 1 P 2 P 3 (prestep gear is shown on picture) Execution - code 4 BENZLERS P 4 P 5 P 6 P 7 P 8 BENZLERS Gear with hollow O V shaft, torque arm and connection Execution - code 5 BENZLERS Motor sizes Gear BS * 45* 45* 45* 50 45* 45* 45* 63 45* 45* 45* * = Can be changed to 0 with distance ring, VM + = Distance ring to be mounted on gear BENZLERS BENZLERS BENZLERS 11

14 Worm geared motors 0.12 kw Output Ratio Service Output Permissible Size Weight Dim. speed factor torque overhung load page n 2 i f bp T2 Fr2 rpm Nm kn kg FJ BS 71/40 63A Fl FH FG FF FE FD FC FB FD BS 63/40 63A FC FB FA ED BS 50/40 63A EC EB EA K BS 63 71B J I K BS J BS 50 71B I J BS I H K BS 40 71B J I K BS J I K BS 40 63A J I H G F E D C B A G BS 35 71B F E D C B A G BS F E D C B A G BS 35 63A F

15 Worm geared motors 0.12 kw Output Ratio Service Output Permissible Size Weight Dim. speed factor torque overhung load page n 2 i f bp T2 Fr2 rpm Nm kn kg E BS 35 63A D C B A Worm geared motors 0.18 kw Output Ratio Service Output Permissible Size Weight Dim. speed factor torque overhung load page n 2 i f bp T2 Fr2 rpm Nm kn kg FG BS 71/40 63B FF FE FD FC FB FA FB BS 63/40 63B FA EB BS 50/40 63B EA M BS 88 80A K BS 71 80A J I K BS 63 80A J K BS 63 71A J I J BS 50 80A I H J BS 50 71A I H G Fx I BS 40 80A I BS 40 71A H K BS 40 63B J I H G F E D C B

16 Worm geared motors 0.18 kw Output Ratio Service Output Permissible Size Weight Dim. speed factor torque overhung load page n 2 i f bp T2 Fr2 rpm Nm kn kg A BS 40 63B C BS 40 63K B A D BS 35 71C C B A E BS 35 71A D C B A G BS 35 63B F E D C B A Worm geared motors 0.25 kw Output Ratio Service Output Permissible Size Weight Dim. speed factor torque overhung load page n 2 i f bp T2 Fr2 rpm Nm kn kg FK BS 112/63 71 A FJ Fl FH FG FFx FF FE FD FC Fl BS 88/50 71A FH FG FFx FF FE FD FC FB FA FE BS 71/40 71A FD FC FB FA FA BS 63/40 71A EA BS 50/40 71 A K BS B

17 Worm geared motors 0.25 kw Output Ratio Service Output Permissible Size Weight Dim. speed factor torque overhung load page n 2 i f bp T2 Fr2 rpm Nm kn kg J BS B I H G K BS 63 71A J I H I BS 50 71B H J BS 50 71A I H G Fx F H BS 40 71B G J BS 40 71A I H G F E D C B A C BS 40 63B B A C BS 35 71B B A E BS 35 71A D C B A A BS B Worm geared motors 0.37 kw Output Ratio Service Output Permissible Size Weight Dim. speed factor torque overhung load page n 2 i f bp T2 Fr2 rpm Nm kn kg FJ BS 112/63 71B Fl FH FG FFx FF FE FD

18 Worm geared motors 0.37 kw Output Ratio Service Output Permissible Size Weight Dim. speed factor torque overhung load page n 2 i f bp T2 Fr2 rpm Nm kn kg FD BS 112/63 71B FC FB FFx BS 88/50 71B FF FE FD FC FB FA FB BS 71/40 71B FA M BS S L M BS 88 90S L K M BS 88 80A L K J BS 71 90S K BS 71 80A J I H J BS 63 90S J BS 63 80A I H K BS 63 71B J I H G Fx F H BS 50 90S H BS 50 80A I BS 50 71B H G Fx F E D C H BS 40 71B G F E A BS 35 71C B BS 35 71B A A BS 35 71A

19 Worm geared motors 0.55 kw Output Ratio Service Output Permissible Size Weight Dim. speed factor torque overhung load page n 2 i f bp T2 Fr2 rpm Nm kn kg FFx BS 112/63 80A FF FE FD FC FB FA FD BS 88/50 80A FC FB FA FA BS 71/40 80A M BS L L K L BS 88 90L K M BS 88 80B L K J M BS 88 80A L K J I BS 71 90L J BS 71 80B I H J BS 71 80A I H G F E I BS 63 80B H G J BS 63 80A I H G Fx F E D G BS 50 80A Fx F E D C B A C BS 50 71B E BS 40 80A

20 Worm geared motors 0.55 kw Output Ratio Service Output Permissible Size Weight Dim. speed factor torque overhung load page n 2 i f bp T2 Fr2 rpm Nm kn kg D BS 40 80A C B A C BS 40 71B B A A BS 35 71C A BS 35 71B Worm geared motors 0.75 kw Output Ratio Service Output Permissible Size Weight Dim. speed factor torque overhung load page n 2 i f bp T2 Fr2 rpm Nm kn kg FE BS 112/63 80B FD FC FB FA FB BS 88/50 80B FA M BS LA L K M BS S L K J L BS LA K L BS 88 90S K J M BS 88 80B L K J H G H BS LA H BS 71 90S J BS 71 80B I H G F E D

21 Worm geared motors 0.75 kw Output Ratio Service Output Permissible Size Weight Dim. speed factor torque overhung load page n 2 i f bp T2 Fr2 rpm Nm kn kg I BS 63 80B H G Fx F E D C B D BS 63 80A F BS 50 80B E D C B A C BS 50 80A B C BS 40 80B B A C BS 40 80A B A A BS 35 71C

22 Worm geared motors 1.1 kw Output Ratio Service Output Permissible Size Weight Dim. speed factor torque overhung load page n 2 i f bp T2 Fr2 rpm Nm kn kg FC BS 112/63 90S FB FA L BS LB K L BS L K J BS L M BS S L K J K BS 88 90L J L BS 88 90S K J H G F E H BS 71 90S G F E D C B F BS 63 90S E D C B A D BS 63 80B C B C BS 50 90S B A C BS 50 80B B A B BS 40 80B A

23 Worm geared motors 1.5 kw Output Ratio Service Output Permissible Size Weight Dim. speed factor torque overhung load page n 2 i f bp T2 Fr2 rpm Nm kn kg FB BS 112/63 90L FA K BS M K BS L J M BS L L K J H G J BS L K BS 88 90L J H G F E D C F BS 71 90L E D C B A C BS 71 90S E BS 63 90L D C B A D BS 63 90S C B A B BS 50 90L A C BS 50 90S B A

24 Worm geared motors 2.2 kw Output Ratio Service Output Permissible Size Weight Dim. speed factor torque overhung load page n 2 i f bp T2 Fr2 rpm Nm kn kg J BS M K BS LA J H G F E H BS LA G F E D C B D BS LA C B A C BS 71 90L B A C BS LA B A C BS 63 90L B A A BS 50 90L Worm geared motors 3 kw J BS LB H G F E D C E BS LB D C B A B BS L B BS LB A C BS L B A A BS LB B BS L A

25 Worm geared motors 4 kw Output Ratio Service Output Permissible Size Weight Dim. speed factor torque overhung load page n 2 i f bp T2 Fr2 rpm Nm kn kg H BS M G F E D C B D BS M C B A B BS M B BS M A Worm geared motors 5.5 kw Output Ratio Service Output Permissible Size Weight Dim. speed factor torque overhung load page n 2 i f bp T2 Fr2 rpm Nm kn kg F BS S E D C B A B BS SA B BS S A B BS SA A

26 Worm geared motors 7.5 kw Output Ratio Service Output Permissible Size Weight Dim. speed factor torque overhung load page n 2 i f bp T2 Fr2 rpm Nm kn kg E BS M D C B A B BS SB A A BS M B BS SB A Worm geared motors 9 kw Output Ratio Service Output Permissible Size Weight Dim. speed factor torque overhung load page n 2 i f bp T2 Fr2 rpm Nm kn kg D BS MD C B A B BS ME A B BS ME A

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28 Worm geared motors BS35 Shaftmounted ødmb L ødm LMB LM LB HA HH ø PA VA HB F2 øv HF A HE BA BB BC LE ød2 ødy2 G2 K øta F E Gear Motor size BA BB BC LE HA HB HH L LM LB ø PA HF A HE ø V BS BS Gear Motor size VA ø TA K F E ød2 H7 G2 F2 JS9 ødy2 ødm ødmb LMB BS M6x9 (4x) 7.5 (12x) BS M6x9 (4x) 7.5 (12x) Worm geared motors BS35 Footmounted ø DMB L ø DM LMB LM LB HA ø PA VA HB HH F2 øv HF A HE L2 LA BA BB ød2 G2 K ø TA F E BC LE Gear Motor size LA L2 BA BB BC LE HA HB HH L LM LB ø PA HF A BS BS Gear Motor size HE ø V VA ø TA K F E ød2 j6 G2 F2 h9 ødm ødmb LMB BS M6x9 (4x) 7.5 (12x) BS M6x9 (4x) 7.5 (12x)

29 Worm geared motors BS35 Flangemounted ø DMB L ø DM LMB LM LB HH ø PA VA HE A F2 L2 T BH BC ød2 G2 ø N ø M ø P Gear Motor size BC BH T L2 HE HH L LM LB ø PA A BS BS Gear Motor size ø VA ø M ø P ø N h7 ø D2 j6 F2 h9 G2 ødm ødmb LMB BS BS Worm geared motors BS35 Foot/flangemounted ø DMB L2 LA ø DM LE LA L2 LMB LM L LB VA ø V F2 G2 AC HH ø PA A HE HF E BE AA BC BD AB B BF ø TB C ød2 Gear Motor size LA L2 BD BE BC LE BF AA H, L LM LB øpa HF A HE BS BS Gear Motor size øv VA ø TB AB B C ød2j6 G2 F2h9 AC ødm ødmb LMB BS M6x9 (4x) 7 (4x) BS M6x9 (4x) 7 (4x)

30 Worm geared motors BS Shaftmounted LMB LM LB L ødmb ødm LU R(4) A HD HC øda ød2 HB HM øpa HA LD LC LC LA BC LE Mounting position O, hollow shaft Position of terminal box, see page 11 Shaft tolerance, see page 57 BS Motor- Motor dimensions Gear unit dimensions size B14 B5 BS L LB L LB A BC øda HA HB HC HD HE HH HJ LA LC ør S L S L S L S L (i>55) S L (i<55) S (i>60) L (i>60) (i>60) (i>60)

31 L LMB LM LB ødm ødmb FL LU HH HE A HJ T ød2 øfd øpa BG Mounting position O, hollow shaft F E G K øta BS DL BB LE BA DL Position of terminal box, see page 11 Shaft tolerance, see page 57 Shaft- Fan Motor dimensions With dimensions brake motor BA BB BG E F G K T øta ød2 LE DL FD FL DM HM LM LU PA-B14 PA-B5 DMB LMB

32 Worm geared motors BS Footmounted LMB LM L LB L2 B ødmb ødm LU HJ T HH HE ød2 HM øpa øta G F E K BB BA Mounting position OV, OH, OD Position of terminal box, see page 11 Shaft tolerance, see page 57 BS Motor- B14 B5 Gear unit dimensions size Motor dimensions BS L LB L LB B HE HH HJ BA BB E F G K T TA S L S L S L S L (i>55) S L (i<55) S (i>60) L (i>60) (i>60) (i>60)

33 Series BS Eng2.:Series BS Eng. 29/8/07 13:15 Page 33 LMB LM LB L FL ødm L2 B LU ødmb T HJ HH HE ød2 øfd øpa Mounting position OV, OH, OD Position of terminal box, see page 11 Shaft tolerance, see page 57 F E G K øta BS BB BA Shaft- Fan Motor With dimensions dimensions brake motor D2 L2 FD FL DM HM LM LU PA-B14 PA-B5 DMB LMB

34 Worm geared motors BS Footmounted L LMB LM LB L2 B LU HG T HF HE øpa ød2 HM øta K G BB F E ødm BA ødmb Mounting position UV, UH, UD Position of terminal box, see page 11 Shaft tolerance, see page 57 BS Motor- Motor dimensions Gear unit dimensions size B14 B5 BS L LB L LB B HE HF HG BA BB E F G K T TA S L S L S L S L (i>55) S L (i<55) S (i>60) L (i>60) (i>60) (i>60)

35 Series BS Eng2.:Series BS Eng. 29/8/07 13:18 Page 35 LMB LM LB L2 B øfd HG T HF HE øpa ød2 L E F G øta K FL BB BA ødm LU ødmb Mounting position UV, UH, UD Position of terminal box, see page 11 Shaft tolerance, see page 57 BS Shaft- Fan Motor With dimensions dimensions brake motor D2 L2 FD FL DM HM LM LU PA-B14 PA-B5 DMB LMB

36 Worm geared motors BS Flangemounted Mounting position OH Position of terminal box, see page 11 Shaft tolerance, see page 57 BS Motor- Motor dimensions Gear unit dimensions size B14 B5 BS L LB L LB A HS BJ M N P øsa TE TD BH ) 95 1) 140 1) S L S ) 110 1) 160 1) L S ) 130 1) 200 1) L S L (i>55) S L (i<55) S (i>60) L (i>60) (i>60) (i>60) Standard execution, others on request.

37 Series BS Eng2.:Series BS Eng. 29/8/07 13:19 Page 37 L ødm LU ødmb LMB LM LB FL BK BH L2 øn øp øfd A ød2 HS øpa øsa øm BJ TE TD Mounting position OH Position of terminal box, see page 11 Shaft tolerance, see page 57 BS Shaft- Fan Motor With dimensions dimensions brake motor D2 L2 FD FL DM HM LM LU PA-B14 PA-B5 DMB LMB

38 Worm geared motors BS 50/40 - BS112/63 Shaftmounted LU LK LN HB HA LB øpa L LM HM A HD HC øda ød2 R(4) ødm LD LC LA LC BC LE BS 50/40-71/40 Mounting position O, U -P7 Mountingsposition O -P7 Position of terminal box, see page 11 Shaft tolerance, see page 57 Motor- Motor dimensions Gear unit dimensions size B14 B5 BS L LK LB L LK LB A BC DA HA HB HC HD HE HH HJ LA LC LN R 50/ / / / S L / S L

39 Series BS Eng2.:Series BS Eng. 29/8/07 13:19 Page 39 LK L LU LN L2 B LB LM T HJ HH HM A HE ød2 ødm øta BB G K BA F E BS 88/50-112/63 Position of terminal box, see page 11 Shaft tolerance, see page 57 Shaft- Motordimensions dimensions BA BB E F G K T TA D2 L2 DM HM LM LU PA

40 Worm geared motors BS50/40 - BS 112/63 Footmounted LU LK LN L2 B LB L LM HJ T HH HM A HE ød2 ødm øpa øta BB F E G K OV BA OH Mounting position OV, OH, OO - P7 Position of terminal box, see page 11 Shaft tolerance, see page 57 BS 50/40-71/40 Mounting position OV - P7 Motor- Motor dimensions Gear unit dimensions size B14 B5 BS L LK LB L LK LB A B HE HH HJ LN 50/ / / / S L / S L

41 Series BS Eng2.:Series BS Eng. 29/8/07 13:20 Page 41 LK L LU LN LB LM HH HM HJ HE ød2 ødm BG G øta K DL BB DL F LE E BS 88/50-112/63 BA Mounting position 0,O - P7 Position of terminal box, see page 11 Shaft tolerance, see page 57 Shaft- Motordimensions dimensions BA BB BG E F G K T TA D2 LE DL DM HM LM LU PA

42 BS 35 Power ratings Ratio Input Output Input Output Efficiency Thermal rating 1) Overhung and code speed speed power torque load Shaft- Footn 1 n 2 P1 T2 η mount mount F r2 i rpm rpm kw Nm % kw kw N 10 A B C D E F G ) Gearbox with fan or motor motor with fan, flange mounted on the gearbox. 40

43 BS 40 Power ratings Ratio Input Output Input Output Efficiency Thermal rating 1) Overhung and code speed speed power torque load Shaft- Footn 1 n 2 P1 T2 η mount mount F r2 i rpm rpm kw Nm % kw kw N (20/3) A (20/2) B (30/2) C (20/1) D (24/1) (30/1) F (40/1) G (48/1) H (60/1) I (70/1) J (84/1) K ) Gearbox with fan or motor motor with fan, flange mounted on the gearbox. 41

44 BS 50 Power ratings Ratio Input Output Input Output Efficiency Thermal rating 1) Overhung and code speed speed power torque load Shaft- Footn 1 n 2 P1 T2 η mount mount F r2 i rpm rpm kw Nm % kw kw N (24/3) A (21/2) B (28/2) C (21/1) D (24/1) E (32/1) F (37/1) Fx (42/1) G (54/1) H (64/1) I (80/1) J ) Gearbox with fan or motor motor with fan, flange mounted on the gearbox. 42

45 BS 63 Power ratings Ratio Input Output Input Output Efficiency Thermal rating 1) Overhung and code speed speed power torque load Shaft- Footn 1 n 2 P1 T2 η mount mount F r2 i rpm rpm kw Nm % kw kw N (31/4) A (33/3) B (28/2) C (36/2) D (49/2) E (29/1) F (37/1) Fx (43/1) G (51/1) H (57/1) I (73/1) J (104/1) K ) Gearbox with fan or motor motor with fan, flange mounted on the gearbox. 43

46 BS 71 Power ratings Ratio Input Output Input Output Efficiency Thermal rating 1) Overhung and code speed speed power torque load Shaft- Footn 1 n 2 P1 T2 η mount mount F r2 i rpm rpm kw Nm % kw kw N (30/4) A (28/3) B (36/3) C (32/2) D (42/2) E (28/1) F (37/1) G (48/1) H (63/1) I (82/1) J (100/1) K ) Gearbox with fan or motor motor with fan, flange mounted on the gearbox. 44

47 BS 88 Power ratings Ratio Input Output Input Output Efficiency Thermal rating 1) Overhung and code speed speed power torque load Shaft- Footn 1 n 2 P1 T2 η mount mount F r2 i rpm rpm kw Nm % kw kw N (29/4) A (47/4) B (47/3) C (39/2) D (47/2) E (29/1) F (39/1) G (47/1) H (58/1) J (71/1) K (82/1) L (106/1) M ) Gearbox with fan or motor motor with fan, flange mounted on the gearbox. 45

48 BS 112 Power ratings Ratio Input Output Input Output Efficiency Thermal rating 1) Overhung and code speed speed power torque load Shaft- Footn 1 n 2 P1 T2 η mount mount F r2 i rpm rpm kw Nm % kw kw N (28/4) A (46/4) B (46/3) C (39/2) D (46/2) E (28/1) F (39/1 ) G (46/1) H (63/1) J (76/1) K (95/1) L (108/1) M ) Gearbox with fan or motor motor with fan, flange mounted on the gearbox. 46

49 Double worm gears Power ratings Ratio Input Output Input Output Efficiency Thermal rating 1) Overhung and code speed speed power torque load Shaft- Footn 1 n 2 P1 T2 η mount mount F r2 Code i rpm rpm kw Nm % kw kw N BS 50/40 EA EB EC ED EE EF EG EH El EJ EK BS 63/4 0 FA FB FC FD FE FF FG FH Fl FJ FK BS 71/4 0 FA FB FC FD FE FF FG FH Fl FJ FK BS 88/5 0 FA FB FC FD FE FF FFX FG FH Fl FJ BS 112/63 FA FB FC FD FE FF FFX FG FH Fl FJ FK ) Gearbox with fan or motor motor with fan, flange mounted on the gearbox. 47

50 Standard execution BS40-71 L LB L1 HA ME SE R(4) øda ød1 A HB HD HC MF ød2 LD LC LA LC BC LX LE Mounting position O, hollow shaft BS A BC D1 D2 DA HA HB HC HD L L1 LA LB LC LD LE LX ME MF ør SE Kgs M8x M8x M8x M8x Underdriven worm gear with feet and output shaft LB L L1 L2 B HG T ød1 HF HE ød2 øta BB K G BA F E Mounting position UV, UH, UD Mounting position UV BS B BA BB D1 D2 E F G HE HF HG K L L1 L2 LB T TA Kgs Shaft tolerance, see page 57 48

51 Overdriven worm gear with feet and output shaft LB L L1 L2 B HG T HH HE ød2 ød1 øta BB G K BA F E Mounting position OV, OH, OD Mounting position OV BS B BA BB D1 D2 E F G HE HH HG K L L1 L2 LB T TA Kgs Worm gear with vertical worm screw, feet and output shaft ød1 B L2 HE LB HK T ød2 L1 F GA øta K BB BA E Mounting position VV, VH, VD Mounting position VV BS B BA BB D1 D2 E F GA HE HK K L1 L2 LB T TA Kgs Shaft tolerance, see page 57 49

52 Series BS Eng2.:Series BS Eng. 29/8/07 14:41 Page 52 Worm gear with horizontal input shaft and feet LB L L1 ød2 A TC HN X ød1 B HI L2 øtb LF LE KA BD GB BF BE Mounting position HU, HN, HD. Also state position of input shaft A or B. Mounting position HU-B BS A B BD BE BF D1 D2 GB HI HN KA L L1 L2 LB LE LF TB TC X Kgs Standard execution with motorflange L LB øma TM HA øna BS40 M90 45 BS71 45 øs R(4) DA A HC ød2 øpa HD HB Mounting position O- or U-hollow shaft LD LC LA LC BC LE Size Motor- Flange size type A BC D2 DA HAHB HC HD L LA LB LC LD LE MA NA PA ør S TM Kgs 63 B B B B B B B B B B B B B /112 B Shaft tolerance, see page 57 50

53 Series BS Eng2.:Series BS Eng. 29/8/07 14:30 Page 53 Underdriven worm gear with feet, output shaft and motorflange L TM LB ød2 L2 B BS40 M90 45 BS71 45 HE øpa HG HF øs T øna øma Mounting position UV, UH, UD øta K G F E BB BA Mounting position UV Size Motor- Flange size typee B BA BB D2 E F G HE HF HG K L L2 LB MA NA PA TA TM S T 63 B B B B B B B B B B B B B /112 B Overdriven worm gear with feet, output shaft and motorflange L TM LB L2 B BS40 M90 45 BS71 45 øs T HJ HH HE ød2 øpa øna øma øta BB G K BA F E Mounting position OV Size Motor- Flange size typee B BA BB D2 E F G HE HH HJ K L L2 LB MA NA PA S T TA TM 63 B B B B B B B B B B B B B /112 B Shaft tolerance, see page 57 51

54 Worm gear with vertical worm screw, feet, output shaft and motorflange L2 B øma øpa TM øna øs(4x) BS71 45 HL T HR ød2 LB Mounting position VV, VH, VD F E GA øta K BB BA Mounting position VV Size Motor- Flange size type B BA BB D2 E F GA HR HL K L2 LB MA NA PA S T TA TM Vikt B B B B B B B B B B B B B /112 B Motorflange type B5 BS 40 M71-M80 0 øs BS Size Motorsize LB MA NA PA S TM BS øna øma BS BS øpa BENZLERS BS / TM LB 52

55 BS Worm gear with feet and output shaft L L1 LB FL L2 B ME SE HJ T HH HE ØFD ød2 MF ød1 Size FD FL BS BS øta G K E F Mounting position OV, OH, OD BB BA Mounting position OV Size Ratio BB BA B E K F G D2 D1 L2 L1 HH T HJ HE L LB TA SE ME MF Kgs BS < M10x > M10x BS < M10x > M10x BS Worm gear with hollow shaft L LB L1 FL ME SE HH HE HJ ød2 ØFD MF ød1 BG T øta G K E F Mounting position O-hollow shaft BB DL DL LE BA Mounting position O-hollow shaft Size Ratio BB BA BG D2 D1 DL E F G HH HJ HE K L L1 LB LE T TA SE ME MF Kgs BS < M10x > M10x BS < M10x > M10x Shaft tolerance, see page 57 53

56 Worm gear BS with horizontal input shaft and feet LB L L1 ød2 A FL HN TC ød1 øfd B L2 HM øtb BD LF LE BF GB KA BE Mounting position HU, HN, HD. Also state position of input shaft A or B. Mounting position HU-A Size Ratio A B BD BF BE D1 D2 L2 L1 FD FL GB HM HN L LB LF LE KA TB TC Kgs Oil (lit) BS < > BS < > BS Motorflange L TM LB øma øpa øs øna HH Mounting position OH, OV, OD Mounting position OV Size Motor B14 Flange B5 Flange size HH L LB MA NA PA S TM L LB MA NA PA S TM Vikt i> H H BS H H / H H i< H i> H H BS i> H H / H H H Shaft tolerance, see page 57 54

57 Execution with output flange and shaft BS BH TE L2 TD ØM ØSA BJ BH L2 ød2 øn øp ØN ØP ØD2 øsa øm BJ TE TD 1) Standard execution, others on request Size BH D2 L2 BJ M N P SA TE TD Vikt BS h h h h BS h h h h BS h h BS h BS j BS j Shaft tolerance, see page 57 55

58 Execution with torque arm Size ø B ø BY ø H SA ø SH ø SV RL RS TS TB BS (8x) LN LS BO 20 BL TF øsb HT 20 Torque arm shall be mounted for tension (see arrows). LS AK AS 20 AT ØS HT LS Size AK AS AT BO HT BL LN min/max S SB TF Kgs BS / BS / BS /290-3/8" BS /290-3/8" BS / BS /

59 Execution with electromagnetic brake LK LH øpb Size Brake Brake size torque Nm øpb LH LK Vikt BS BS BS BS Shaft bushings Hollow shaft mm Size Standard Bushing BS BS Key and locking screws are supplied with each set of bushes. Shaftdimensions and tolerances F1 F2 F2 G1 Input shaft Hollow shaft Output shaft ødy2 G2 G2 ød1 ød2 ød2 Size Input shaft Hollow shaft Output shaft D1 F1 G1 DY2 D2 F2 G2 D2 F2 G2 BS 35 30d9 20H7 6JS j6 6h BS 40 14j6 5h d9 20H7 6JS j6 6h BS 50 19j6 6h d9 25H7 8JS j6 8h BS 63 19j6 6h d9 30H7 8JS j6 8h BS 71 24j6 8h d9 35H7 10JS j6 10h BS 88 i<60 28j6 Sh d9 45H7 14D k6 14h BS 88 i>60 24j6 8h9 27 BS 112 i<60 35j6 10h d9 55H7 16D k6 16h BS 112 i>60 28j6 8h9 31 Keyway acc. to SMS 2305 Maximum input speed n1 Size i<60:1 112i>60:1 n 1, max rpm

60 Worm Gear with environmental With BS (size 40-71) classified acc to environmental class we are able to recommend the gears for installation in ambient conditions where normally classification only materials in stainless steel are accepted. The gears are classified acc to environ-mental class M2-M3, Swedish standard stbk-n4. 58

61 Advantages: No corrosion Low weight (aluminium) High rating IEC-standard High surface finish Modern design No maintenance Easy handling Large number of motor alternatives Product specification coated gear case, flanges and feet stainless steel bolts in gear housing stainless steel hollow shaft ( SS 2346 alt. 2382) stainless steel output shaft surface for seal ring protected by stainless steel sleeve (SS 2333) Seal rings of viton ratings acc to catalogue Type of coating The coating is a recently developed surface coating method for aluminium. The coating means that the material surface is, by a chemical process, converted into an aluminium oxide, which gives a very hard, ceramic, surface finish. The oxide layer is then impregnated and coated with plastic. With heat treatment a very strong and resistant connection between oxide and plastic is created. Unique coating qualities: high resistance against corrosion very hard and resistant against wear Iow tendency to be sticky hygienic Application examples food industry paper and cellulose industry pharmaceutical industry chemical industry defence industry marine and mobile installations all outdoor installations Gear BS 40 BS 50 BS 63 BS 71 Catalogue rating, Nm max min Output speed, rpm max min Max static load, Nm Radial force on output shaft, N Thrust load on output shaft, N

62 Applications Worm gear with shrink fit BENZLERS Size Shrink disc A B øc ød Nm BS 40 HSD BS 50 HSD BS 63 HSD BS 71 HSD ød øc BENZLERS BS 88 B A BENZLERS BS 88 Wormed geared motor with v-belt variator BENZLERS 63 Wormed geared motor with planetary variator Wormed geared motor with encoder flange (PGF) 60

63 Benzlers "electronic" catalogue We at Benzlers has as one of our goals to continuously help our customers to increase their profitability and efficiency. As a step on this road we have made programs for CAD and PC with drawings and calculation programs for our whole range of gears, which will simplify your selection of gears. This electronic catalogue will help you with; Selection of gear and geared motor. Documentation of selection and related power demands etc. Detail drawing and Layout drawing. With these programs you will win considerable amount of time in the design stadium and will gain higher development speed in your own business. Except gaining time the selection will secure that the optimal gear combination is selected in each and every case. Thereby the risk for expensive breakdown will decrease to a minimum and also unnecessary high cost if too big gears are selected. 61