Select temporarily J2G and obtain the inputshaft min-1 “n” assuming the worm reduction ratio as “H”.
Next. obtain the required input shaft torque.
Obtain the required power from the valuesand ②
min-1
V : lifting speed (mm/min)n : input shaftC : speed coefficient (see page 7)
N・mT : required input shaft torquea : torque coefficient (see page 7)b : input shaft no load torque (see page 7)W : lifting load (kN)
P : required power kW n : input shaft min-1
T : required input shaft torque N・m
min-1 ……①
……②
n1000Constant
C = 1.33
T = a・W + b
P =
P =
P =
=
n × T
1 . 33751.9=
nV
C=
=
N・m= =T 0.99×30+2 31.7
min-1
kW=
=T
= =n
=P800×32.1
0.97×30+3
2.7
N・m=32.1
10001 . 25
800
9550
Load at the time of lifting: 30 kN
2
9550
9550751.9×31.7 kW
W×V b×n
2.5
9550
� : jack efficiency�61200×
Lifting speed: 1000 mm/min.
From page 7, constant a = 0.99, constant b = 2
J2G is 2.3
J3GH is 3.1
Selection of jack size No.
Specification
Select temporarily the size No. of the screw jack having the standard ca-pacity to meet the load.
Assume the worm reduc-tion ratio as"H"and obtain the required input shaft rpm from the lifting speed.
Calculate the required input shaft torque from the load at the time of lifting.
Set the hand wheel radius if the screw jack is to be used for manual operation.
Obtain the required power per jack from the required input shaft torque and rpm.
Check again with ball screw jack Type J-B.
If low speed or fine ad-justment is specially re-quired, check assuming the worm reduction ra-tion as "L"
Is the allowablemaximum input shaft
rpm exceeded?
Is the maximum powerper jack exceeded?
Is the allowable bucklingload exceeded?
No.
No.
No.
Yes.
Yes.
Yes.
Adopt thesize No.
5
If th
e ja
ck i
s so
des
igne
d th
at t
ensi
le l
oads
are
app
lied
to t
he s
crew
, th
e si
ze N
o. c
an b
e se
lect
ed e
cono
mic
ally
with
out
conc
ern
abou
t bu
ckin
g ev
en w
hen
a lo
ng s
trok
e is
nee
ded.
Since the maximum power per jack for J2G is 2.3 kW from the table on page 7, the required power is not met.So the selection of J2G is inappropriate. Change the size No.to J3GH and perform the above calculatins again as follows.
Since the allowable input min-1 for J2G is 1800 min-1, this “n” is acceptable.
As the maximum power per jack for J3GH is 3.1 kW the re-quired power is met. So this size No. shall be adopted.
Required jackperformance
Formula (1)
Formula (2)
Formula (3)
<Step 1>
[Calculation example]
<Step 2>
<Step 3> ①
The following formula can also be used to obtain the re-quired power.
+
LScrewjack
Ball screwjack H
J 0 G J 1 G J 2 G J 3 G J G A J 4 A J 5 A J 6 A J F A J 7 A
J 0 B J 1 B J 2 B J 3 B
— J 4 B J 5 B J 6 B J F B J 7 B
5 6 6 8 8 8 102/3 102/3 102/3 122/3
24 24 24 24 24 24 32 32 38 36
Remarks:1) If the screw jack is used at input 1,000 min-1 or over, oil Iubrication is adopted.2) The allowable overhang load is obtained by the formula below.
3) In the presence of impact or Vibration, the self-locking function does not work in some cases. Then, the use of brake must be considered.
4) The service temperature ranges for standard products are -15 to +80˚C for JOG to JGA and -15 to +100˚C for J4A to J7A. If these ranges are exceeded, we can meet your requirements at your option. Please consult us.
5) As the lifting screw end is not locked, do not use the jack outside the service ranges.6) Allowable loads of 2 kN and 4 kN are also available. Please refer to special bulletin (J-005).7) If special accuracy, grade, etc., are necessary, please consult us.
Size No. J0G J1G J2G J3G JGA J4A J5A J6A JFA J7A
Capacity kN 10 25 50 100 150 200 300 500 750 1000
Lifting screw diameter and lead mm20 25 40 50 55 63 85 118 132 150
4 5 8 10 10 12 16 16 16 20
Worm gear ratioH 5 6 6 8 8 8 102/3 102/3 102/3 122/3
L 24 24 24 24 24 24 32 32 38 36
EfficiencyH 0.22 0.21 0.21 0.20 0.18 0.18 0.18 0.13 0.13 0.13
L 0.13 0.13 0.12 0.15 0.14 0.14 0.12 0.09 0.08 0.08
H 0.75 1.3 2.3 3.12.8 4 6.5 11 15 17
L 0.4 0.5 1.1 1.8
H 6.0 16.8 51.7 100.1 165 249 376 820 1340 1660
L 2.4 7.4 23.7 47.4 79 115 196 440 630 1000
H 1190 735 420 295 140 135 130 90 75 75
L 1600 640 440 360 290 300 255 190 160 125
H 1800 1800 1800 1800 870 810 795 535 530 510
L 1800 1800 1800 1800 1055 995 825 555 540 400
3.6 9 1529 30 46 76 182 315 565
32 35 53 101 205 350 565
Grease charging quantity kg 0.1 0.4 0.6 1 1.5 2 3 4 6 8
Prevent key torque N·m 15 45 140 360 600 920 1850 4400 7450 11200
Input shaft allowable overhang load N 300 450 700 1200 1200 1200 2200 2500 2500 3000
Input shaft no load torque b N·m 0.3 1 2 3 4 5 10 20 30 40
Troque coefficient aH 0.57 0.63 0.99 0.97 1.07 1.22 1.22 1.6 1.75 1.62
L 0.21 0.25 0.43 0.44 0.5 0.55 0.62 0.84 0.8 0.96
H 0.80 0.83 1.33 1.25 1.25 1.5 1.5 1.5 1.5 1.58
L 0.17 0.21 0.33 0.42 0.42 0.5 0.5 0.5 0.42 0.56
Lifting screw forming Roll threading Machining
Lifting screw cover material Rigid PVC Steel
Maximum allowablepowerper jack kW
Required input at allowable load min-1
Maximum input at allowable load min-1
Allowable maximuminput min-1
Approximate Weight(stroke:100mm) kg
(Without prevent key)
(With prevent key)
Speed coefficient c (screw lead per rotationof input shaft) mm
Overhang load =Input torque (N·m)
Radius of pulley, sprocket, etc.
Reduction ratio H
Reduction ratio H
The size No. can be selected from the graph based on the lifting load and lifting screw speed.
Lift
ing
loa
d (
kN)
Lift
ing
loa
d (
kN)
Lifting screw speed (mm/min)
Lifting screw speed (mm/min)
JFA
JGAJGAJGAJGA
JFA
JGA
Allo
wa
ble
bu
cklin
g lo
ad
(kN
)
(2.1× 105N/mm2) E:modulis of longitudinal elasticity
(N) GG
GG
Allo
wa
ble
bu
cklin
g lo
ad
(kN
)
Allo
wa
ble
bu
cklin
g lo
ad
(kN
)
JFA
JGA
JFA
JGA
JFA
JGA
J 0 G : 16.0 J 1 G : 20.0J 2 G : 32.0 J 3 G : 39.5JGA : 44.5 J 4 A : 50.5J 5 A : 68 J 6 A : 101J F A : 115 J 7 A : 129
200 150 120 100 80 - - -
700 400 300 210 170 140 110 -
1450 900 600 500 400 350 250 210
1300 800 600 450 350 300 240 200
1700 1100 800 650 500 450 350 300
3050 2300 1900 1550 1350 1200 950 750
4750 3900 3200 2700 2250 1900 1500 1200
12650 9150 6750 5650 4700 4050 3200 2600
15900 12000 9300 7600 6400 5550 4400 3600
18700 13750 10900 9000 7650 5700 5300 4400
180 140 110 90 80 - - -
450 400 250 200 170 140 110 -
900 650 500 400 350 300 240 200
800 600 450 350 300 250 220 180
1000 750 600 500 450 400 300 250
2500 1950 1550 1300 1150 1000 800 600
3650 2850 2350 2000 1750 1550 1250 1050
6700 5450 4600 3750 3500 3100 2550 2200
8450 7000 6000 5250 4650 4200 3500 3000
8950 7600 6650 5950 5300 4800 4050 3500
(N)
100 200 300 400 500 600 800 1000
J 0 G
J 1 G
J 2 G
J 3 G
J G A
J 4 A
J 5 A
J 6 A
J F A
J 7 A
StrokeSize No.
mm
(N)
100 200 300 400 500 600 800 1000
J 0 G
J 1 G
J 2 G
J 3 G
J G A
J 4 A
J 5 A
J 6 A
J F A
J 7 A
StrokeSize No.
mm
Allowable side force of lifting-type screw jack: N (If bellows are used, the values for one size No. above are applicable.)
Allowable side force of suspending-type screw jack: N (If bellows are used, the values for one size No. above are applicable.)
If the stroke exceeds 500, please consult us.
Stroke
Symbol
A
A A
L
L H
100
115170 35 90150150230230
200
115170 35 90250250330330
300
115200 35120350350430430
400
115200 35120450450530530
500
115210 35130550550630630
Size No.
Symbol
T H
T J
T K
T L
T M
T N
J 0 G
22
10
100
32
65
9
J 1 G
25
11
108
38
76
11
J 2 G
33
16
119
45
80
18
J 3 G
33
16
146
55
105
22
J G A
47
16
178
70
127
26
J 4 A
52
16
178
70
127
26
J 5 A
64
19
216
90
153
32
Size No.
Symbol
Awith Prevent key
A A
B A
B E
B F
B G
B H
C
D
E
F
G
Hwith Prevent key
K
L
with Prevent key
L Hwith Prevent key
M
N
P
Q
S
T
U
V
W
Z
J 1 G
155(155) 40
ø25 L = 5 53106 54 73 45
44.5 40 92 40115
(115)180
Stroke +
55 ( 55)
170(170) 44 75 13 25 15
M18 × 1.5 22 17 5 11
J 2 G
175(175) 50
ø40 L = 8 75132 73 80 56 56 57112 53125
(125)230
Stroke +
60 ( 60)
185(185) 66 90 13 27 20
M25 × 2 32
22.5 6 18
J 3 G
185(220) 50
ø50 L = 10 95140 84100 56 66 73118 62136
(170)280
Stroke +
60 ( 60)
196(230) 84120 20 42 25
M32 × 2 32 28 8 22
J G A
220(270) 60
ø55 L = 10 98152 84100 70 66 76130 62160
(210)290
Stroke +
60(160)220
(170) 84120 20 42 25
M40 × 2 45 28 8 22
J 4 A
235(305) 60
ø63 L = 12105180102105 85 73 76150 72175
(244)300
Stroke +
65( 65)240
(309) 89.1
134 19 43 25
M45 × 2 50 28 8 26
J 5 A
280(410) 70
ø85 L = 16130225125145100 95 95190 90210
(339)360
Stroke +
75(175)285
(514) 114.3
175 25 50 35
M60 × 2 62 38 10 33
( )
( )
( )
( )
Size No.StrokeSymbol J 1 G
195(195)
230(230)
270(270)
270(270)
80
115
155155
155
255
355
455
555
655
855
75
100200
300400500
600
800
100200
300400500
600800
100
200
300
400
500
600
800
A
A A
L
B D
J 2 G
215(215)
250(250)
290(290)
290(290)
90
125
165165
160
260
360
460
560
660
860
95
J 3 G
225(260)
260(295)
300(335)
300(335)
90
125
165165
160
260
360
460
560
660
860
110
J G A
265(315)
300(350)
340(390)
340(390)
105
140
180180
160
260
460
560
860
660
860
110
J 4 A
285 (355)
320
(390)
360 (430)
360 (430)
110
145
185
185
265 (265)
365 (365)
365 (465)
465 (565)
565 (865)
865 (665)
1065 (865)
120
J 5 A
335 (465)
370
(500)
410 (540)
410 (540)
125
160
200
200
175 (175)
275 (275)
375 (475)
475 (675)
575 (675)
875 (875)
1075 (875)
140
Size No.
Symbol
T A
T B
T C
T D
T E
T F
T G
J 0 G
60
45
15
15
32
22
15
J 1 G
70
50
20
20
40
25
20
J 2 G
105
75
30
30
50
32
25
J 3 G
115
80
35
35
63
36
30
J G A
140
100
40
40
85
45
40
J 4 A
150
110
40
40
85
45
40
J 5 A
215
150
65
65
90
55
50
100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500
285 385 485 585 685 785 885 985 1085 1185 1285 1385 1485 1585 1685
L U L I L U L I L U L I L U L IJ 0 G J 1 G J 2 G J 3 G
205 305 405 505 605 705 805 905 1005 1105 1205 1305 1405 1505 1605
350 450 550 650 750 850 950 1050 1150 1250 1350 1450 1550 1650 1750
260 360 460 560 660 760 860 960 1060 1160 1260 1360 1460 1560 1660
390 490 590 690 790 890 990 1090 1190 1290 1390 1490 1590 1690 1790
280 380 480 580 680 780 880 980 1080 1180 1280 1380 1480 1580 1680
430 530 630 730 830 930 1030 1130 1230 1330 1430 1530 1630 1730 1830
320 420 520 620 720 820 920 1020 1120 1220 1320 1420 1520 1620 1720
Size No,
Stroke
Direction
(Unit: mm)
Size No. Symbol
J 0 GJ 1 GJ 2 GJ 3 GJ G AJ 4 AJ 5 A
A Aø20L= 4ø25L = 5ø40L = 8ø50L = 10ø55L = 10ø63L = 12ø85L = 16
A B12172535404565
A C 20 28 45 56 63 71100
B A 80 90125160190224250
B B 63 63100125140160200
B C 40 40 63 80 90100125
B D 45 63 80 90100112140
B E12.516 25 31.535.540 50
C A 80115125136160175210
C B25252535606575
C D 55 75 90120120134175
C E – 35 50 60 60 70100
C F –
2 4.5 8181820
C C34
48.6 60.5 76.3 76.3 89.1114.3
Z4444444
d 9 (M 8)11 (M10)14 (M12)18 (M16)22 (M20)22 (M20)26 (M24)
Table of dimensions:
For dimensions of Type J6A and larger, please consult us.
Grease fitting
Grease fitting
J 0 G
J 1 G
J 2 G
J 3 G
R
100
100
–
–
K
135
140
–
–
AJ
95
100
–
–
R
–
200
–
–
K
–
210
–
–
AJ
–
115
–
–
R
–
–
300
300
K
–
–
275
285
AJ
–
–
180
190
R
–
–
–
450
K
–
–
–
290
AJ
–
–
–
195
Type 100 Type 200 Type 300 Type 450Size
Size No.
Dimensions
* The grip size for Type 100 only is 40.
Table of dimensions
10 25 25 50 50 100 200 300 0 1 1 2 2 3 4 5
BAー00 BAー0 BAー1 BAー2
20 25 25 40 40 50 63 85 4 5 5 8 8 10 12 16 2.5 3 4.11 6
0.27 0.26 0.26 0.27 0.27 0.26 0.23 0.23
Allowable load (KN)
Lifting screw diameter (φ)
Lifting screw lead (mm)
Ratio
Efficiency
A
B
C
D
E
F
G
H
K
L
M
N
P
S
T
U
V
W
A A
A B
A C
A D
A K
154 60 45 178 - 122 76.5
139.7 4 60 95 - 37
171 60 45 210 - 135 85
165.1 4 85
226 60 45 289 - 155 95 254 8 150
305 60 55 386 343 225 140
298.5 8 134 175 19
0 1 1 2 2 3 4 5
35 45 45 55 55 55 65 75
M14×1.5 M18×1.5 M18×1.5 M25×2 M25×2 M32×2 M45×2 M60×2
310 460 610 92 97 112
20 22 22 32 32 32 50 62 92 120
15 17 17 18 120 125
40 32 39 74 105 160 72 77 80 82 89 124 165 230
BA-0BA-00 BA-1 BA-2
Stroke +170
Stroke +170
Stroke +180
Stroke +180
Stroke +210
Stroke +210
Stroke +285
Stroke +275
Symbol
Size No.
Type
Item
Size No.
Type
M16×2, depth 25 M20×2.5, depth 25 M16×2, depth 25 M20×2.5, depth 31
+0 -0.0595.2 +0
-0.076127 +0 -0.076152.4 +0
-0.076177.8
+0 -0.13631.56 +0
-0.13631.56 +0 -0.13631.56 +0
-0.13635.5+0.030 -0.01510+0.030
-0.0157+0.030 -0.0157+0.030
-0.0157+0 -0.0428.56 +0
-0.0428.56 +0 -0.0428.56 +0.009
-0.03432
Please designate code No. (size No. -type)Example: " BA-00-0" (" Size No. BA-00, Iifting screw diameter
20 mmφand lead 4 mm" )
R
J
Type 12 Type 18 Type 24Symbol
Size
KN
N・m
N・m
N・m
N・m
10 25 50 100 200 300 500 750 1000
3 9 . 8 24 45 115 163 327 563 690
1 . 2 4 12 22 55 88 180 270 350
5 15 45 115 300 600 1250 2250 3500
300 450 700 1200 1200 2200 2500 2500 3000
0 . 3 1 2 3 5 10 20 30 40
1 . 5 5 13 21 56 80 160 180 370
0 . 18 0 . 7 1 . 5 3 . 5 10 9 14 15 21
N
2) The maximum input rotational frequency is 1,800 min-1. If the jack is used at input 1,000 min-1 or over, oil lubrication is adopted.
Input torque (N・m)Radius of pulley, sprocket, etc.
B
kN
ø
mm
H
L
H
L
kW
H
L
H
L
H
L
kg
kg
N·m
N
N·m
H
L
H
L
Size No.
Capacity
Lifting screw diameterand lead
Worm gear ratio
Efficiency
Maximum allowable power per jack
Required input torque N·m
for allowable load
Worm rotation per10mm of stroke
Holding torque N·m
Approximate weight(stroke: 100 mm)
Grease charging quantity
Prevent Key torque
Input shaft allowable oberhang load
Input shaft no load torque
Torque coefficient a
Speed coefficient c(screw lead per rotation of input shaft) mm
J 0 B
10
205
5
24
0.61
0.36
0.75
3
1.2
10
48
1.5
0.18
5
0.15
5
300
0.3
0.27
0.09
1
0.21
J 1 B
25
258
6
24
0.61
0.36
1.3
9.8
4
7.5
30
5
0.7
11
0.6
15
450
1
0.35
0.12
1.33
0.33
J 2 B
50
3610
6
24
0.60
0.34
2.5
24
12
6
24
13
1.5
20
0.9
45
700
2
0.44
0.2
1.67
0.42
J 3 B
100
4512
8
24
0.58
0.41
3.7
45
22
6.7
20
21
3.5
40
1.5
115
1200
3
0.42
0.19
1.50
0.5
J 4 B
200
6016
8
24
0.58
0.43
6
115
55
5
15
56
10
70
3
300
1200
5
0.55
0.25
2
0.67
J 5 B
300
8020
102⁄3
32
0.59
0.39
9.5
163
88
5.3
16
80
9
130
4
600
2200
10
0.51
0.26
1.87
0.63
J 6 B
500
10024
102⁄3
32
0.58
0.37
14
327
180
4.4
13.3
160
14
270
6
1250
2500
20
0.61
0.32
2.25
0.75
J F B
750
120 28
102⁄3
38
0.59
0.37
17
563
270
3.8
13.6
180
15
500
8
2250
2500
30
0.71
0.32
2.62
0.74
J 7 B
1000
14032
122⁄3
36
0.60
0.36
22
690
350
3.9
11.2
370
21
750
12
3500
3000
40
0.65
0.31
2.53
0.89Roll threading
Rigid PVC
Machining
Steel
Lifting screw forming
Lifting screw cover material
Lift
ing
loa
d (
kN)
Lift
ing
loa
d (
kN)
1000
750
500
300
200
100
50
25
10
3
1000
750
500
300
200
100
50
25
10
3
JFB
JFB
Allo
wa
ble
bu
cklin
g lo
ad
(kN
)
1000
500
300
200
100
50
25
10
5
1
0 . 5
Allo
wa
ble
bu
cklin
g lo
ad
(kN
)
1000
500
300
200
100
50
25
10
5
1
0 . 5
Allo
wa
ble
bu
cklin
g lo
ad
(kN
)
1000
500
300
200
100
50
25
10
5
1
0 . 5
(2.1× 105N/mm2) E:modulis of longitudinal elasticity
(N)
JFB
JFB
JFB
J 0 B : 17.5 J 1 B : 21.4J 2 B : 31.2 J 3 B : 39.6J 4 B: 53.0 J 5 B : 70.5J 6 B : 88.3 J F B : 106.4J 7 B : 123.7
Lo
ad
(kN
)
1000
750
500
300
200
100
50
25
10
5
Expected traveling distance (m) =Stroke (m) � 2 � number of reciprocations/day � 365 days � expected number of years
Example of table lifter using ball screw jacks
JFB
If the stroke exceeds 500, please consult us.
Stroke
Symbol
A
A A
L
L H
100
175225 40 90150250285385
200
175225 40 90250350385485
300
175255 40120350450485585
400
175255 40120450550585685
500
175265 40130550650685785
Size No.
Symbol
T H
T J
T K
T L
T M
T N
J 0 B
22
10
100
32
65
9
J 1 B
25
11
108
38
76
11
J 2 B
33
16
119
45
80
18
J 3 B
33
16
146
55
105
22
J 4 B
52
16
178
70
127
26
J 5 B
64
19
216
90
153
32
Size No.
Symbol
A
A A
B A
B E
B F
B G
B H
B J
C
D
E
F
G
H
K
L
L H
M
N
P
Q
S
T
U
V
W
Z
J 1 B
200
45
ø25 L = 8
53
106
54
73
76
45
44.5
40
92
40
156
180
Stroke +
55
211
44
75
13
25
15
M18 × 1.5
22
17
5
11
J 2 B
265
55
ø36 L = 10
75
132
73
80
94
56
56
57
112
53
211
230
Stroke +
60
271
66
90
13
27
20
M25 × 2
32
22.5
6
18
J 3 B
330
55
ø45 L = 12
95
140
84
100
120
56
66
73
118
62
275
280
Stroke +
60
335
84
120
20
42
25
M32 × 2
32
28
8
22
J 4 B
430
75
ø60 L = 16
105
180
102
105
155
85
73
76
150
72
357
300
Stroke +
65
422
89.1
134
19
43
25
M45 × 2
50
28
8
26
J 5 B
525 85
ø80 L = 20
130
225
125
145
188
100
95
95
190
90
443
360
Stroke +
75
518
114.3
175
25
50
35
M60 × 2
62
38
10
33
Size No.StrokeSymbol J 1 B
235
270
310
80
115
155
255
355
455
555
655
855
1055
75
100
200
300
400
500
600
800
100
200
300
400
500
600
800
100
200
300
400
500
600
800
A
A A
L
B D
J 2 B
300
335
375
90
125
165
260
360
460
560
660
860
1060
95
J 3 B
365
400
440
90
125
165
260
360
460
560
660
860
1060
110
J 4 B
465
500
540
110
145
185
265
365
465
565
665
865
1065
120
J 5 B
570
605
645
125
160
200
275
375
475
575
675
875
1075
140
Size No.
Symbol
T A
T B
T C
T D
T E
T F
T G
J 0 B
60
45
15
15
32
22
15
J 1 B
70
50
20
20
40
25
20
J 2 B
105
75
30
30
50
32
25
J 3 B
115
80
35
35
63
36
30
J 4 B
150
110
40
40
85
45
40
J 5 B
215
150
65
65
90
55
50
100 200 300 400 500 600 700 800 900100011001200130014001500
L U
300 400 500 600 700 800 90010001100120013001400150016001700
J 0 B J 1 B J 2 B J 3 B
L I
220 320 420 520 620 720 820 9201020112012201320142015201620
L U
350 450 550 650 750 850 95010501150125013501450155016501750
L I
260 360 460 560 660 760 860 9601060116012601360146015601660
L U
410 510 610 710 810 910101011101210131014101510161017101810
L I
300 400 500 600 700 800 90010001100120013001400150016001700
L U
490 590 690 790 890 990109011901290139014901590169017901890
L I
375 475 575 675 775 875 97510751175127513751475157516751775
(Unit: mm)
Stroke
Size No.Direction
We can manufacture lifting screws of lengths other than those shown above. Please consult us.
(Unit: mm)
Size No.Symbol
J 0 B
J 1 B
J 2 B
J 3 B
J 4 B
J 5 B
A A
ø 20 L = 5ø 25 L = 8ø 36 L = 10ø 45 L = 12ø 60 L = 16ø 80 L = 20
A B
121725354565
A C
20 28 45 56 71100
B A
67 83100150200250
B B
55 65 80115155200
B C
44 47 60 70 94125
B D
58 66 98150187235
B E
121618303545
B F
–3039516277
B G
–3548577796
C A
80115125136175210
C B
305560606575
C C
34 48.6 60.5 76.3 89.1114.3
C D
55 75 90120134175
C E
– 32 45 60 70100
C F
–1215181820
d
5.5 911182226
Drawing of dimensions:
For dimensions of Type J6B and larger, Please consult us.
2) They can be used at high-speed rotation (1,800 min-1 maximum).
196 197 222 231 236 240 262 291 351 344
85 90 115 140 145 150 180 279 300 305
J0G ( B )
J1G ( B )
J2G ( B )
J3G ( B )
JGA
J4A ( B )
J5A ( B )
J6A ( B )
JFA ( B )
J7A ( B )
(Unit: mm)Symbol
Size No.A
85 90115140145150180279300305
B
196197222231236240262291351344
Remove the cover.1
Raise the center of stopper with pushing it. (This enable the setting button to be pushed.)
2
Raise the "A" button into locked position with pushing it. (This will release the internal clutch engagement. Make sure that the white lines in the window are in line. If it is not in line, repeat above setting procedure again. )
3
4
Once reached to the setting position, stop the equipment, then make sure the white lines in line.
5
Recover the "A" button into the original position.6
7
89
10Turn on the equipment and operate to the setting position.
Make sure the operation. Put the screw jack back slightly, then operate to the set position.
Set "B" button as same as "A".
Once confirmed ""A" & "B" operation, return the stopper.
Put the cover back.
Geared limit switch setting procedure
Size No.
J0G• J0B
J1G• J1B
J2G• J2B
J3G• J3B
JGA
J4A• J4B
J5A• J5B
J6A• J6B
JFA• JFB
J7A• J7B
A
85 90115140145150180279300305
B2 Train Type
193202227253257262290392412423
B'4 Train Type
275284309335339344372474494505
C2 Train Type
278292342393402412470671712728
C'2 Train Type
360374424475484494552753794810
Setting direction symbols
∑T∑J N
t
×
9.55× =
∑ T Total braking torque in terms of motor shaft:
:(N・m)
N motor min-1
T(L) : (N・m) load torque
∑J = J(H) + J(C1) + J(GR) + (J(C2) + J(JACK))×(1/i)2
∑J: total of J in terms of motor shaftJ(H): J of motor with brake
J(C1): J of coupling on motor sideJ(C2): J of coupling on jack sideJ(GR): J in terms of the input shaft of intermediate
speed reducerJ(JACK): J in terms of the worm shaft of jack
i: reduction ratio of intermediate speed reducer
Further, the necessary braking torque is calculatedfrom the stop time and the J of the driving rotarybody.
(Unit N m) : ・
50 50 145 272 272 272 834 1106 1954 1954
J0G(B) J1G(B) J2G(B) J3G(B) JGA J4A(B) J5A(B) J6A(B) JFA(B) J7A(B)
Size No.
IndicationB
C
D
E
F
G
H
K
M
N
P
Q
S
W
d
Bolt size
J 0 G
J 0 B
50 22 50 80 30 12 60 54104254140 20 15170 11M10
J 1 G
J 1 B
60 20 70110 40 12 80 70134250100 22 25140 11M10
J 2 G
J 2 B
70 40 90150 50 18 85 90186340150 40 35200 18M16
J 3 G
J 3 B
80 55120170 60 24120100210400190 45 50240 22M20
J G A
–
90 65140190 65 26130110240435200 50 60260 22M20
J F A
J F B
140120220400120 50210220500860400115110520 45M42
J 7 A
J 7 B
160 140 260 400 140 55 270 250 5001170 640 150 130 780 55 M52
J 4 A
J 4 B
100 75160230 70 28140120280460205 50 70270 26M24
J 5 A
J 5 B
120 90180270 90 36170150330600280 80 80360 33M30
J 6 A
J 6 B
140120220320120 50200220400960500100100620 45M42
JMG-H JSG-H JSG-L
600W
one for 2 kN and one for 5 kN.
kN
mass
kN
Main specifications
Item
Allowable load kN
Lifting screw diameter
Worm gear ratio
Efficiency
Maximum power per
Approximate mass
Size No.JMG-H
2
φ16×3
3
0.22
320W
1.1kg
JSG-H
5
φ20×4
5
0.22
600W
1.9kg
JSG-L
5
φ20×4
24
0.13
230W
1.9kg
(stroke: 100 mm)
Main specifications
Item
Standard capacity kN
Rack diameter
Rack lead per revolutionof input shaft
Efficiency
Maximum speed
Size No. JMR
2
20mm
106.8mm/rev.
0.9
8m/min at 75min-1
JSR
4
30mm
160.2mm/rev.
0.9
8m/min at 50min-1
Jack Inquiry SpecificationScrewBall screwRackYour company name:
Tel: Fax:
Name of person in charge
Load conditions
Customer name
Date:
User name
Machinery namePurpose of useNecessary function
LiftingTransfer
TiltingAdjustment
Pushing upSustention
OpeningConstant -amount
Total maximum load
Number of jacks
Maximum load per jack
Total maximum load
Number of jacks
Maximum load per jack
Load direction
kN
kN
kN
kN
kN
Compression
Jack fixed
Jack supported
Jack fixed
Tension Both direction
Mounting conditions in the case of compressive load
Shaft end free
Shaft end supported
Shaft end supported
Lateral load
Offset
None
None
Applied
Applied
kN
mm
Operating conditions Service conditions
Service environment
Service frequencyRequired stroke mm
Driving source
Manual
Electric motor
Air motor
With brake
Geared motor
Hydraulic motor
Without brake
Power kW p Hz
Driving shaft rotation frequency min-1
Jack input rotational frequency min-1
Worm reduction ratio i ==
==Lifting screw lead L mm
Lifting screw speed
Limit switch
mm/min
Hr/day
m/day
reciprocations in minutes reciprocations/day
hours
Operating days days/month days/year
Expected life
Indoor Outdoor
Very dusty Rather dusty Not dusty
Ambient temperature range ˚C to ˚C
Impact and Vibration Quiet operation
Some impact and vibration
Great impact and vibraton
Not necessary
Stainless steel lifting screw must be used
(SUS 304)
Consideration of corrosion resistance
Lifting screw direction
Lifting screw prevent key
Lifting screw bellows
Lifting screw end shape
Upright Inverted
Necessary
Necessary
Not necessary
Not necessary
Screw end
Clevis
Disc
Plain end
Necessary Not necessary Selection of type and specification
Specification
Type
Number of jacks
Date of delivery
7 Kirihara - cho, Fujisawa - shi, Kanagawa - ken, 252 Japan
2-row type (2TR) 4-row type (4TR)
When you inquire for jacks, please copy this inquiry specification and fill it up.
Head Office
Sales Head quater NOF Yokohama Nishiguchi Building11-11 Kitasaiwai1 chome, Nisiku,Yokohama 220-0004 JapanTelephone : 045-326-2065Facsimile : 045-320-5961http://www.nippon-gear.co.jp
BULLETIN R - 301F 70131 AS
DYN
AMIC
LO
ADST
ATI
C L
OA
D