NUT lifting Ball Screw Jack KOB,K1B,K2B,K3B,K4B by YOUNGJIN WORM - Komachine Supplier Profile and Product List

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YOUNGJIN WORM

NUT lifting Ball Screw Jack

Model Name

KOB

Series

Screw Jack

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Data

Dimension table-YOUNGJIN WORM-Nut lifting Type K0B

Manufacturer information

YOUNGJIN WORM

Precision Worm Reducer, Gantry Robot 3:1 Reducer, Dual Pitch Cavex Reducer, Dual Lead Worm, Screw Jack and more

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Manufacturer

YOUNGJIN WORM

Brand

SKU

142182

Product Name

NUT lifting Ball Screw Jack

Model Name

KOB, K1B, K2B, K3B, K4B, K5B, K6B, K6 1/2B, K7B

Size

Weight

Product Details

NUT lifting Ball Screw Jack

A type of jack in which the nut moves when the screw shaft rotates is called a nut lifting type ball screw jack.

Since it does not require a space for raising and lowering the screw shaft, the stroke can be effectively used to the end. This is especially convenient when space is limited.
For ball screw jacks, it is recommended to support the tip of the screw shaft to prevent vibration, especially in order to prevent the lateral load that you want to avoid, and to enable safe lifting even in the case of a long stroke.
When thrust bearings are used instead of radial bearings, which are normally used for screw shaft tip support, buckling can be avoided even when the shaft end shape is partially deformed or in the case of long strokes.

Standard specification

model number		KOB	K1B	K2B	K3B	K4B
Basic Capacity (Tonf)		1	2.5	5	10	20
Screw shaft diameter (mm)		20	25	36	45	60
Screw shaft lead (mm)		5(10)	5(10)	10	10	10(16)
worm reduction ratio	H	5	6	6	8	8
worm reduction ratio	L	24	24	24	24	24
efficiency	H	0.61	0.61	0.6	0.58	0.58
efficiency	L	0.36	0.36	0.34	0.41	0.43
Maximum allowable torque per jack turn (kw)		0.75	1.3	2.5	3.7	6
Required input torque for basic capacity (kgf-m)	H	0.27	0.88	2.2	4.2	11
Required input torque for basic capacity (kgf-m)	L	0.093	0.37	1	1.9	5
The number of revolutions of the worm for a stroke of 10 mm	H	10	7.5	6	6.7	5
The number of revolutions of the worm for a stroke of 10 mm	L	48	30	24	20	15
Holding Torque (kgf-m)	H	0.15	0.5	1.3	2.1	5.6
Holding Torque (kgf-m)	L	0.018	0.07	0.15	0.35	1
Weight (kgf) In case of stroke 100mm		5	11	20	40	70
Grease filling amount (kgf)		0.15	0.6	0.9	1.5	3
Anti-rotation key torque (kgf-m)		0.5	1.5	4.5	11.5	30
Input Shaft Allowable Overhang Load (kgf)		30	45	70	120	120
Input shaft no-load torque (kgf-m)		0.03	0.1	0.2	0.3	0.5
torque factor	H	0.27	0.35	0.44	0.42	0.55
torque factor	L	0.09	0.12	0.2	0.19	0.25
speed factor Stroke advance per 1 rotation of the input shaft mm	H	1	1.33	1.67	1.5	2
	L	0.21	0.33	0.42	0.5	0.67
screw shaft forming		Rolling	Rolling	Rolling	Rolling	Rolling
screw shaft cover material		Rigid Vinyl Chloride	Rigid Vinyl Chloride	Rigid Vinyl Chloride	Rigid Vinyl Chloride	Steel
Operating temperature range (°C)		-15~+80	-15~+80	-15~+80	-15~+80	-15~+100

model number		K5B	K6B	K6 1/2B	K7B
Basic Capacity (Tonf)		30	50	75	100
Screw shaft diameter (mm)		80	100	120	140
Screw shaft lead (mm)		10(20)	24	28	32
worm reduction ratio	H	10 2/3	10 2/3	10 2/3	12 2/3
worm reduction ratio	L	32	32	38	36
efficiency	H	0.59	0.58	0.59	0.6
efficiency	L	0.39	0.37	0.37	0.36
Maximum allowable torque per jack turn (kw)		9.5	14	17	22
Required input torque for basic capacity (kgf-m)	H	15	31	53	67
Required input torque for basic capacity (kgf-m)	L	8	16	29	40
The number of revolutions of the worm for a stroke of 10 mm	H	5.3	4.4	3.8	3.9
The number of revolutions of the worm for a stroke of 10 mm	L	16	13.3	13.6	11.2
Holding Torque (kgf-m)	H	8	16	18	37
Holding Torque (kgf-m)	L	0.9	1.4	1.5	2.1
Weight (kgf) In case of stroke 100mm		130	270	500	750
Grease filling amount (kgf)		4	6	8	12
Anti-rotation key torque (kgf-m)		60	125	225	350
Input Shaft Allowable Overhang Load (kgf)		220	250	250	300
Input shaft no-load torque (kgf-m)		1	2	3	4
torque factor	H	0.51	0.61	0.71	0.65
torque factor	L	0.26	0.32	0.32	0.31
speed factor Stroke advance per 1 rotation of the input shaft mm	H	1.87	2.25	2.62	2.53
	L	0.63	0.75	0.74	0.89
screw shaft forming		Rolling	Rolling	Machine Cutting	Machine Cutting
screw shaft cover material		Steel	Steel	Steel	Steel
Operating temperature range (°C)		-15~+100	-15~+100	-15~+100	-15~+100

YOUNGJIN WORM

Precision Worm Reducer, Gantry Robot 3:1 Reducer, Dual Pitch Cavex Reducer, Dual Lead Worm, Screw Jack and more

YOUNGJIN WORM is a company specializing in the production of high-precision worm shafts and worm wheels contributing to the development of the best precision gear industry. As a professional manufacturer of servo precision worm reducers (dual lead box), YOUNGJIN WORM is doing its best to contribute to the development of the precision gear industry in Korea with the experience and know-how accumulated for a long time. We are making ceaseless efforts to satisfy our customers in terms of quality, price, and delivery service with high-precision processing systems and the latest gear inspection equipment installed for achievement of the best efficiency. We will keep doing our utmost to become a first-class worm manufacturer by producing better products with superior information and technological power.We thank our customers for the unsparing guide and encouragement for our growth and development, and we look forward to the continuous use and participation of customers.

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