HepcoMotion. BSP ballscrew premier

Transcription

1 HepcoMotion SP ballscrew premier

2 ontents INTROUIN TH HepcoMotion SP NUT/SRW OMINTIONS ccuracy SUPPLY OPTIONS SPS SRIS Rapid espatch Programme 3 SPH SRIS High Lead Screws 4 SPM SRIS Miniature Screws H RIN HOUSIN IX N To suit ballscrew end machining figure K RIN HOUSIN IX N To suit ballscrew end machining figure 7 & HS RIN HOUSINS SUPPORT N To suit ballscrew end machining figure SHT N MHININ TILS LLSRW SLTION Rotational Speed ritical Speed 3 uckling Load 4 verage Speed and verage Load Service Life Torque alculation ORRIN TILS Nut Part No. 3 esignation for nd Machining - Nut Orientation Screw Part No. 3 esignation for nd Machining earing Housing ixed earing end, to fit ig end machining earing Housing Supported earing end, to fit ig end machining

3 Introducing the HepcoMotion SP allscrew Premier allscrew Premier offers a compact range of the more popular rolled and ground screws in single IN nut format together with a range of high lead and miniature screws. Rapid despatch screws identified in the catalogue as SPS type are of single nut IN flange design and incorporate rolled screws grade 7 with nuts either having controlled play 0 or no play. Select this range for most applications where medium accuracy is required with maximum convenience and a rapid delivery. or the more preload critical application the same range can be offered with a ground screw grade and a lightly preloaded single nut. omplementing the range are high lead (SPH) and miniature screws (SPM) covering rolled 7 and ground grades. ny combination of accuracy and preload can be offered across all types but, allscrew Premier has been designed to make selection easy to suit the majority of applications whilst maintaining competitive deliveries across the whole range. or a complete list of the standard accuracy and preload combinations please refer to page

4 Nut/Screw combinations allscrew Premier offers 3 types of nut, IN single, High lead and Miniature all available on very competitive lead times. or maximum convenience select from the Rapid despatch programme SPS* which covers the popular combinations of rolled screws from mm to mm diameter. If the combination you require is not listed then please call our Technical epartment for availability. Series Type ccuracy Light Preload No Play Play SPS IN Single ground SPS* IN Single 7 rolled 0 SPH High Lead ground SPH High Lead 7 rolled 0 SPM Miniature 7 rolled 0 ccuracy ground screws have a maximum lead deviation of 0.0mm per 300mm 7 rolled screws have a maximum lead deviation of 0.0mm per 300mm Supply options allscrew units will be supplied with the ends machined and the nut assembled onto the screw. isassembly of the nut from the screw is not possible without the aid of a special mandrel in order to release the nut and prevent the loss of the recirculating balls. We do recommend, therefore that units are purchased with the ends ready machined to one of the standard configurations outlined in the catalogue using the relevant nd Support bearing. Machining to bespoke drawing requirements is possible, and screws without end machining can be supplied, however, it should be borne in mind that, in all cases, the nut will be assembled on to the screw and considerable care will need to be taken when machining in order to prevent the ingress of dirt into the recirculating system.

5 SPS Series Rapid espatch Programme IN 0 orm Single Nuts Standard vailability 7 Rolled* round. Holes Ø through on P 4 30 Holes Ø through on P 30 Ø (g) Ø Lub point H Ø - Ø3 Ø Lub point H Ø - Ø Length L S - Screw dia, P - Pitch, K - Stiffness (N/µm) Nut Part number Max length L () Max length L (7) * S P H as as yn Stat a(kn) oa(kn) K *SPS0R M ()*SPSR M 7..4 ()*SPS0R M.3 3. ()*SPSR 0. 4 M *SPSR 0. 4 M ()*SPS3R M *SPS3R M ()*SPS0R M *SPSR M SPSR M Nuts marked * are part of the Rapid espatch Programme Nuts marked () can be supplied with left hand threads (not Rapid espatch Programme) ombinations screw with light preload nut () 7 screw with no play nut () 7 screw with axial play nut (0) xial play (0) max figures: dia 0.0mm, dia 0.mm Screw diameters mm and above are available in lengths up to m by special request If the combination you require is not listed Please check availability 3

6 SPH Series High Lead Screws Single Nuts Standard vailability 7 Rolled round Lub Point H Ø Ø 4 Holes Ø through on P 0 I S - Screw dia, P - Pitch, K - Stiffness (N/µm) Nut Part number Max length L () Max length L (7) S P H I as yn a(kn) as Stat oa(kn) K SPHR M... 0 SPHR M...4 SPHR M SPH33R M.4. 0 SPHR M SPHR M Please note SPH R is only available with ground screw ombinations screw with no play nut () 7 screw with no play nut () 7 screw with axial play nut (0) xial play (0) max figures dia 0.0mm, dia 0.mm Screw diameters mm and above are available in lengths up to m by special request If the combination you require is not listed Please check availability 4

7 SPM Series Miniature Series Single Nuts Standard vailability 7 Rolled Ø Ø 4 Holes Ø through on P S - Screw dia, P - Pitch, K - Stiffness (N/µm) Nut Part number Max length L () Max length L (7) S P as yn a(kn) as Stat oa(kn) K SPM00R SPM00R SPM00R SPM0R SPMR SPMR ll the above nuts can be supplied with left hand threads Lubrication hole for nut not supplied ombinations 7 screw with axial play nut (0) xial play (0) max figure 0.0mm, all sizes If the combination you require is not listed Please check availability

8 H earing Housing ixed nd The HepcoMotion H bearing housings are made from chemically blackened steel and contain a pair of matched angular contact bearings to provide accurate radial and axial location for the ballscrew. On installation, the locking nut should be fully tightened and locked in place using the grub screw. The standard ballscrew machined ends (see page ) fit into these housings. To suit ballscrew end machining figure ØL ØK rub screw T R / M ØN J ±0.0 Q ØP = H = - b±0.0 S - allscrew fitted with fixed and supported end bearings ixed end Supported end

9 K earing Housing - ixed nd The HepcoMotion K bearing housings are made from chemically blackened steel and contain a pair of matched angular contact bearings to provide accurate radial and axial location for the ballscrew. On installation, the locking nut should be fully tightened and locked in place using the grub screw. The standard ballscrew machined ends (see page ) fit into these housings. To suit ballscrew end machining figure K & K ØK rub screw T R / Q ØP ±0.0 = = - b±0.0 S - K & K ØK ØL R / rub screw T M ±0.0 Q ØP = = - b±0.0 S - U allscrew iameter Part No. b ØK ØL M ØP Q R S T U Standard housed bearing units are not available. K Mx K Mx K Mx K Mx

10 & HS earing Housings - Supported nd The HepcoMotion & HS bearing housings are made from chemically blacked steel and have an accurately machined bore into which a deep groove ball bearing is fitted. The bearing is a sliding fit in the bore, and is axially located onto the end of the ballscrew using a circlip, which is included with the unit. Units will fit ballscrews with ends machined to figure on page. To suit ballscrew end machining figure... ØL ØK ØK V M ØP ±0.0 & - - b±0.0 - HS... HS ØK ØL V M ØN J ±0.0 ØP = = - b±0.0 - allscrew Part iameter No. b J ØK ØL M ØN ØP V earing Standard housed bearing units are not available ZZ ZZ & ZZ HS ZZ HS ZZ HS ZZ 3 HS ZZ HS ZZ HS ZZ

11 Shaft nd Machining etails The following end machining details are to suit the fixed and supported bearing housings H, HS, K & shown in this catalogue. Standard machining as detailed, excludes a shaft keyway. If this feature is required, please indicate on a separate drawing showing size and position. In addition we can machine ends to your requirements on receipt of a drawing. allscrews with machined ends supplied under the Rapid espatch Programme will have ends machined as detailed below, for use with H and HS end support bearings. ixed end (ig ) Supported end (ig ) H J ØL Ø (h7) Ø (h7) Screw Ø Turned groove for retaining ring IN 47 ØK (k) ixed end (ig ) Supported end (ig ) Use Screw Use Screw With iameter With iameter H J K L K Mx K 34 Mx 0..7 K K Mx Mx H 3 Mx HS.. H 43 Mx HS 3..3 H 7 M7x HS. 7. H3 3 3 Mx 7 HS3 3.3 H M30x. HS H 3 Mx. 3 HS 3. 3 Note: There is no standard end machining design for the Ø ballscrew, as Hepco does not stock housed bearing units for this size. Please submit a drawing showing details of your end machining requirements.

12 allscrew Selection Rotational Speed The speed of a ballscrew is generally specified in terms of its linear velocity. The rotational speed is calculated using the following equation. n = v x 3 p where n = rotational speed (rpm). v = linear velocity (m/min). p = lead (mm). It is recommended that the speed does not exceed rpm. ritical Speed The permissible maximum speed for any size and length of ballscrew depends on the diameter of the screw, end fixing and free length L, and can be taken from the chart below. The chart shows 4 speeds corresponding to the 4 mounting options and includes a safety factor of %. nd ixing 00 ixed Supported ixed ixed 3 4 ree Supported Supported ixed Ø Ø Ø3 Ø Ø Ø Ø Ø ree Length L(m) nd ixing

13 allscrew Selection 3 uckling Load The maximum axial load which can be carried depends on the diameter of the ballscrew, end fixing and free length L. The buckling load for 4 different end fixings is shown below, the chart includes a safety factor of 0% ixed ree Supported ixed 3 Supported Supported Permissible Load (kn) Ø Ø Ø Ø Ø ixed ixed Ø Ø Ø Ø Ø Ø ree Length L(m) nd ixing

14 allscrew Selection 4 verage Speed and verage Load Where the speed varies through the machine cycle, average speed is calculated as follows: n m = q x n + q x n q x x n x where n m = average speed (rpm) q = time fraction (%) Where the load varies, the average load is calculated as follows: m = 3 3 x q + 3 x q x3 x q x where m = average load Where the load and speed varies, the average load is calculated as follows: m = 3 3 x n x q + 3 x n x q x3 x n x x q x n m 0 n m 0 n m 0 Service Life The basic life is expressed by the number of revolutions that will be attained or exceeded by 0% of a representative sample of identical ballscrews before the first signs of material fatigue become evident. Life in hours can be calculated by using the average speed. ( ) L = a 3 x where L = service life (revolutions) m m = average load (kn) a = dynamic capacity (kn) L h = L 0n m where L h = service life (hours) Torque alculation Input torque for conversion of rotary motion to linear motion: T in = x P 00 x π x η where T in = drive torque (Nm) = operating load (N) P = lead (mm) η = efficiency (approx 0.) Output torque for conversion of linear motion to rotary motion: T out = x P x η 00 x π where T out = transmitted torque η = efficiency (approx 0.)

15 Ordering etails Specify the nut type SPS, SPH or SPM along with the dia and pitch, accuracy and running code followed by the screw to match with end machining details. ll the screw references regardless of nut type are SP. The allscrew unit will be supplied assembled with ends machined ready for mounting, or assembled with plain ends according to customers order. nd bearing units are supplied separately. Nut Part No. SPS 0 R Nut type iameter Pitch Running code,, 0 ccuracy class, 7 Right hand thread* Screw Part No. SP 0 R 00 L Screw Ref iameter Pitch Right hand thread* ig machining Left facing flange (see page for options) ig machining Overall length ccuracy class * Some screws are available with left hand threads, these are clearly marked in the data/dimension tables. To specify a left hand thread use designation L instead of R 3

16 Ordering etails esignation for nd Machining - Nut Orientation L xample. Nut flange left position with standard machining L R xample. Nut flange right position with standard machining R or plain ends with no machining delete L or R (Ref ordering details) earing Housing ixed earing end, to fit ig end machining H ixed end Screw diameter earing Housing Supported earing end, to fit ig end machining HS Supported end Screw diameter

17 Notes

18 Notes

19 Notes 7

20 HepcoMotion Product Range V3 Linear uidance and Transmission System HS Heavy uty Slide System PRT Ring Slides and Track System HRT Heavy uty Ring Slides and Track System SL Stainless Steel ased Slide System L Linear all uides S Sealed elt rive MS luminium rame and Machine onstruction System HLS Heavy uty riven Linear System LS Linear Transmission and Positioning System HTS Telescopic all earing Slides HPS Powerslide- uided Rodless ylinder MH Heavy uty Track Roller uidance System TS riven Track System SP allscrew Premier Vee Slide Linear uidance Systems PU Profile riven Unit PS Profile Screw riven Unit Product Range HepcoMotion xclusive uropean partners and distributors for ishop-wisecarver since. Single dge Slide System LoPro luminium ased Slide System UtiliTrak Lightweight U hannel uideway or further information on HepcoMotion products please request our leaflet PL HepcoMotion Lower Moor usiness Park, Tiverton Way, Tiverton, evon, ngland X T Tel: +44 (0) 7000 ax: +44 (0) 430 -mail: sales@hepcomotion.com TLOU No. SP 04 UK 0 Hepco Slide Systems Ltd. Reproduction in whole or part without prior authorisation from Hepco is prohibited. lthough every effort has been made to ensure the accuracy of the information in this catalogue, Hepco cannot accept liability for any omissions or errors. Hepco reserves the right to make alterations to the product resulting from technical developments. Many Hepco products are protected by: Patents, opyright, esign Right or Registered esign. Infringement is strictly prohibited and may be challenged in law.the ustomer s attention is drawn to the following clause in Hepco s conditions of sale: It shall be the ustomer s sole responsibility to ensure that goods supplied by Hepco will be suitable or fit for any particular application or purpose of the ustomer, whether or not such application or purpose is known to Hepco. The ustomer will be solely responsible for any errors in, or omissions from, any specifications or information the ustomer provides. Hepco will not be obliged to verify whether any such specifications or information are correct or sufficient for any application or purpose. Hepco s full conditions of sale are available on request and will apply to all quotations and contracts for the supply of items detailed in this catalogue. HepcoMotion is the trading name of Hepco Slide Systems Ltd.