Lim-Tec Stainless Screw Jack- KV Series
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KV-SERIES WORM GEAR ACTUATORS KATSA OY P.O. Box 366 FIN-33101 Tampere, Finland Tel. +358 3 3151 51 Fax +358 3 3151 5200 Internet: http://www.katsa.fi E-mail: katsagears@katsa.fi

KV-SERIES WORM GEAR ACTUATORS Page Code key General facts about KV-series actuators Technical data Actuators with trapezoid lifting screw. Dimensions Actuators with mounting flange, metric dimensions Actuators with mounting flange, inch dimensions Actuators with mounting lugs, metric dimensions Actuators with mounting lugs, inch dimensions Actuators with mounting flange and keyed cylindrical bore. Dimensions Actuators with mounting lugs and keyed cylindrical bore. Dimensions Special models (E,F,G and N-models) Backlash adjustment option (E and F-models) Actuators with longer mounting lugs...

KV-SERIES WORM GEAR ACTUATORS YY:1 = ratio K = mounting lugs L = mounting flange G = with strengthed bearings = black iron housing H = acidproof housing SPECIAL MODELS = without backlash adjustment E = internal backlash adjustment F1 = ext. backlash adjustment on mounting side F2 = ext. backlash adjustment on top side = std. input shaft ends N = female input shaft ends KV = type XXX.2 = longer mounting lugs 85.3 = tapered housing CUSTOMER MODELS = metric dimensions I = inch dimensions = with trapezoid thread 28 = KV60 with keyed cylindrical bore ∅28 replacing trapezoid thread 48 = KV85 with...

KV-SERIES WORM GEAR ACTUATORS COMMON FACTS • Axles are equipped with preloaded taper roller bearings or thrust ball bearings to eliminate backlash • The trapezoidal nut thread of the output shaft (Tr) is metric ISO type thread. Gear units can be furnished with different types of lifting screws • Trapezoid thread in output shaft can be replaced with keyed cylindrical bore • Mounting holes for pivot axle in model K (with mounting lugs) are equipped with pre-lubricated sliding bearings • Model L is equipped with mounting flange for 6 mounting bolts • Unit can be delivered with flange and...

KV-SERIES WORM GEAR ACTUATORS SPECIAL MODELS • Gear unit for high accuracy requirement equipped with internal backlash adjustment of trapezoidal thread. Type E, for example KV60-20LE − trapezoid thread nut with adjustable backlash, nut and lifting screw paired and backlash factory adjusted (delivered as pairs) − adjustable backlash between worm and gear − total backlash of KV60 E (from input shaft to lifting screw) 0.03...0.07 mm as axial movement of lifting screw • KV100 and types with higher capacity can be ecuipped with external backlash adjustment of trapezoid thread. Type E, for...

KV-SERIES WORM GEAR ACTUATORS TECHNICAL DATA ACTUATORS WITH TRAPEZOID THREAD KV48 -7.75 Type Nominal load [kN] 1) Worm gear ratio Max. Input power [kW] ED 40 % / 10 min 20 % / 1 h (20°C) Efficiency rating [%] 2) Stroke per input shaft rotation [mm] Max. number of actuators for series arrangement Weight [kg] 1) The actuators are allowed to hold a static overload of 25% momentarily. For forces developed by the actuator, 10% overload is allowed. 2) Efficiency ratings are measured with grinded trapezoid threads. Lifting screws are normally self-locking. When vibration occurs, self-locking may...

KV-SERIES WORM GEAR ACTUATORS TECHNICAL DATA ACTUATORS WITH CYLINDRICAL BORE OUTPUT SHAFT Max. number of actuators for series arrangement Worm gear ratio - starting Max. input power [kW] ED 40 % / 10 min 20 % / 1 h (20°C) Efficiency rating [%] Self-locking capability 1) Models KV85-30 and KV100-37 have limited self-locking capability.

KV-SERIES WORM GEAR ACTUATORS The buckling force depends on the material of the trapezoidal screw. Calculations are made using Euler II (safety factor 3).

KV-SERIES WORM GEAR ACTUATORS Allowable radial loads for input shafts

KV-SERIES WORM GEAR ACTUATORS TECHNICAL DATA Type Nominal load [kN] Worm gear ratio Nominal torque M1 [Nm] - 100 r/min - starting Screw torque M2 [Nm] - 100 r/min - starting Max. input power [kW] ED 40% /10 min 20% / 1h (20°) Efficiency rating [%] 2) - 100 r/min - starting Stroke per input shaft rotation [mm] Max. number of actuators for series arrangement Weight [kg] Example: KV85.3-24KNE = Gear unit, size 85.3, worm gear ratio 24 4 35 K = mounting lugs, E = special model, see page 9 N = female input shaft ends

kpl takapuolella st på baksidan pcs on reverse side St hinten nbre derrière st achter kpl etupuolella st på denna sida pcs this side St vorne nbre devant st voor Type Typenbezeich. Type Type Kiilat ja kiilaurat SFS 2636 Kil och kilspår SMS 2306 Kierrereiät karan suojuksien kiinnittämistä varten Threaded holes for the mounting of the spindle cover Trous filetes pour fixer les couvercles de la broche Schroefgaten voor bevestiging spilbeschermingen Keys and keyways SFS 2636 (ISO R 773-1969) Keile und Keilnuten nach SFS 2636 (DIN 6885) Clavettes et rainures de clavettes SFS 2636 Spieën en...

kpl takapuolella st på baksidan pcs on reverse side St hinten nbre derrière st achter kpl etupuolella st på denna sida pcs this side St vorne nbre devant st voor Type Typenbezeich. Type Type Kiilat ja kiilaurat SFS 2636 Kil och kilspår SMS 2306 Kierrereiät karan suojuksien kiinnittämistä varten Threaded holes for the mounting of the spindle cover Trous filetes pour fixer les couvercles de la broche Schroefgaten voor bevestiging spilbeschermingen Keys and keyways SFS 2636 (ISO R 773-1969) Keile und Keilnuten nach SFS 2636 (DIN 6885) Clavettes et rainures de clavettes SFS 2636 Spieën en...

kpl takapuolella st på baksidan pcs on reverse side St hinten nbre derrière st achter Type Typenbezeich. Type Type kpl etupuolella st på denna sida pcs this side St vorne nbre devant st voor M Kierrereiät karan suojuksien kiinnittämistä varten Threaded holes for the mounting of the spindle cover Trous filetes pour fixer les couvercles de la broche Schroefgaten voor bevestiging spilbeschermingen Kiilat ja kiilaurat SFS 2636 Kil och kilspår SMS 2306 Keys and keyways SFS 2636 (ISO R 773-1969) Keile und Keilnuten nach SFS 2636 (DIN 6885) Clavettes et rainures de clavettes SFS 2636 Spieën en...