INTECNO s.r.l.

POWER TRANSMISSION

IMS

PLANETROLL

KELVIN

LEESON

UNIMEC

- Mechanical
screw jacks

- Bevel gearboxes

- Screw jacks for
ball screws

- Speed modulation gears

CROUZET

ELECTRONIC DRIVES

HILGER U. KERN

LINEAR MOTION

THK

www.unimec.eu

Screw jacks for ball screws

REQUEST
CATALOG

Main features

possibility of application of any ball screw available on the market
exact gear ratio
high performance gears
possibility to connect several kinds of motors
cube shape
several different set-ups
model patented

The distinctive feature of these screw jacks is the possibility to mount any type of ball screw available on the market, in both versions: rotating and translant screw.

Basic models

	KT Screw jack with ball screw Version with translant screw internal nut
	KR Screw jack with ball screw Version with rotating screw external nut

Nominal power

The nominal power is given in the following tables for 8 hours continuous operation per day, a theoretical operating lifetime of 10,000 hours, and a service factor = 1. Pn represents input power, while Mt is the output torque. For values within the shaded parts, the thermal power and type of lubrication must be verified. For further information, or if in doubt about the range of products available, please contact our Technical Office.

SIZE K 59

Input revolutions	[rpm]	3000	2500	2000	1500	1000	800	600	400	200	100
Output revolutions	[rpm]	600	500	400	300	200	160	120	80	40	20
Input torque	[Nm]	11,08	11,73	12,32	13,37	13,85	14,81	16,66	17,19	18,51	21,11
Start torque	[Nm]	22	23	24	26	27	29	33	34	37	42
Output torque	[Nm]	47,23	49,91	51,74	56,15	58,16	61,56	68,8	70,82	74,87	83,32
Total efficiency		0,872	0,871	0,867	0,862	0,857	0,85	0,845	0,837	0,827	0,808
Input power	[kW]	3,4	3,07	2,5	2,05	1,42	1,21	1,02	0,71	0,38	0,22

SIZE K 88

Input revolutions	[rpm]	3000	2500	2000	1500	1000	800	600	400	200	100
Output revolutions	[rpm]	600	500	400	300	200	160	120	80	40	20
Input torque	[Nm]	30,82	33,19	37,94	45,05	47,75	49,43	52,37	55,61	61,8	70,44
Start torque	[Nm]	61	66	75	90	95	98	104	111	123	140
Output torque	[Nm]	132	141,9	161,7	191,2	200,6	207,6	219,9	230,4	251,8	276,4
Total efficiency		0,876	0,874	0,872	0,868	0,863	0,859	0,855	0,847	0,834	0,803
Input power	[kW]	9,47	8,5	7,77	6,92	4,87	4,05	3,23	2,28	1,26	0,72

SIZE K 117

Input revolutions	[rpm]	3000	2500	2000	1500	1000	800	600	400	200	100
Output revolutions	[rpm]	600	500	400	300	200	160	120	80	40	20
Input torque	[Nm]	64,74	67,92	78,37	88,82	109,7	117,9	125,4	131	145,5	165,9
Start torque	[Nm]	129	135	156	177	219	229	250	262	291	331
Output torque	[Nm]	278	291	334,6	378,1	463,6	484,2	525,9	541,5	591,5	665,8
Total efficiency		0,878	0,877	0,873	0,871	0,864	0,862	0,858	0,846	0,831	0,821
Input power	[kW]	19,89	17,37	16,05	13,64	11,24	9,41	7,7	5,38	2,98	1,7

Key:
lnput torque [Nm]: Torque during normal operation.
Start torque [Nm]: Maximum starting torque which can be applied.
Output torque [Nm]: Determines which size jack should be chosen for the balls screws once the torque required to move the load has been calculated.
Total efficiency: System performance includes gears, bearings, O-rings and oil flapping.
lnput power [kW]: Maximum applicable power. When determining the actual input power it is necessary to keep in mind the performance of the lead nut/ball screws.