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

YOUNGJIN WORM

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YOUNGJIN WORM

Ball Screw Jack

Model

Series

Screw Jack

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Description

BALL SCREW JACK

It is a standard screw jack that utilizes the experience and technology that only specialized jack manufacturers can do.

Since there is no rotational friction between the nut and the screw shaft like a ball bearing, compared to screw jacks using trapezoidal screws, the efficiency is about 3 times and it can be operated with low power.
It generates little heat even when used at high speed, has low noise, and does not spill oil, so it is also suitable for pollution control.
Since there is no self-locking function like the trapezoidal screw, install a brake if you need a self-locking function.
There are abundant selection functions such as BELLOWS BOOT to protect the screw shaft, TRUNNION BASE, LIMIT SWITCH, and RC encoder for computer control.

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

Download

Dimension table-YOUNGJIN WORM-Shaft lifting Type K0B

Dimension table-YOUNGJIN WORM-Shaft lifting Type K1B

Dimension table-YOUNGJIN WORM-Shaft lifting Type K2B

Dimension table-YOUNGJIN WORM-Shaft lifting Type K3B

Dimension table-YOUNGJIN WORM-Shaft lifting Type K4B

Dimension table-YOUNGJIN WORM-Shaft lifting Type K5B

Dimension table-YOUNGJIN WORM-Shaft lifting Type K6 1/2B

Dimension table-YOUNGJIN WORM-Shaft lifting Type K6B A Type

Dimension table-YOUNGJIN WORM-Shaft lifting Type K6B B Type

Dimension table-YOUNGJIN WORM-Shaft lifting Type K7B

Inquiry

Komachine Inc.

Head Office:

Ace Dongbaek Tower 1-1101, 16-4,

Dongbaekjungang-ro 16beon-gil, Giheung-gu,

Yongin City, Gyeonggido, South Korea 17015

Branch Office:

606, Seoul Stratup Center, 10,

Noryangjin-ro, Dongjak-gu, Seoul, South Korea 06938

CEOCharlie Park

Corporate #535-86-00664