Rexroth: Screw Assemblies. Catalog (R999001185/2018-10) - page 14

 

  Index      Manuals     Rexroth: Screw Assemblies. Catalog (R999001185/2018-10)

 

Search            copyright infringement  

 

   

 

    

 

Content      ..     12      13      14      15     ..

 

 

 

Rexroth: Screw Assemblies. Catalog (R999001185/2018-10) - page 14

 

 

196
Screw Assemblies | Planetary Screw Assemblies PLSA
Product overview
Nuts, Screws, Screw Ends, Bearings
Nuts
Page
Cylindrical single nut
202
ZEM-E-S
Preload class: C0, C2
Single nut with flange
204
FEM-E-S
Preload class: C0, C2
Screws
Precision screw PSR
206
Tolerance grades
T5, T7, T9
Acceptance conditions
255
Diameter d0
Lead P
(mm)
(mm)
Screw ends
5
10
20
210
20
X
-
-
25
X
X
-
30
X
X
-
39
X
X
-
48
X
X
-
Bearing
60
-
X
X
LAF
238
75
-
X
X
LAN
240
LAD
242
LAS
244
FEC-F
246
Accessories
Slotted nut NMA
248
Ring nut GWR
249
Measuring pads
250
Planetary Screw Assemblies PLSA | Screw Assemblies
197
Product overview
Product overview
Planetary Screw Assembly - Definition
The Planetary Screw Assembly PLSA is a complete cylindrical screw assembly with planets as the rolling elements. It serves to
convert rotary motion into linear motion and vice versa.
The basic functioning of a Planetary Screw Assembly is easy to describe, but the range of designs and the requirements for
practical applications are many and varied.
Planetary Screw Assemblies are designed to transmit high forces and thus round off the upper end of the screw assembly
product portfolio.
Planetary Screw Assemblies are drive technology screw assemblies in which threaded rollers
(the planets) are housed in a threaded nut, their ends being lodged in discs with holes arranged around a pitch circle so that
they rotate axially parallel to the special threaded screw, causing the nut to move linearly along the screw.
Rexroth Planetary Screw Assemblies offer design engineers many
At each end of the nut there are internally geared rims which
opportunities to solve transport and positioning tasks with a driven
engage with the external gearing on the planets. Guide discs
screw. At Rexroth you will be sure to find exactly the kind of tailor-
inside the gear rims support the planets’ journals and ensure that
made products you need for special applications.
they are correctly spaced. The discs also prevent coarse dirt from
working its way into the nut.
Structural design:
Both the screw and the nut have an identical multi-start profile
Versions:
with a flank angle of 90°.
--
Cylindrical single nut with backlash or preload (ZEM-E-S)
The planets have journals at both ends, which are lodged in holes
-–
Single nut with flange with backlash or preload (FEM-E-S)
bored in the guide discs. The toothed ends of the planets engage
with the internal gear rims of the nut. The planets have single-start
threads and crowned flanks that roll without slipping along the nut
threads.
Precision Screws PSR
We have now transferred this tried and trusted manufacturing
Bosch Rexroth has a long tradition of manufacturing precision
technology to the screws of our Panetary Screw Assemblies.
screws. Offered in many sizes and in unmatched quality, these
For users, this results in many advantages, including the following:
have been an integral part of our Ball Screw Assembly product
--
Identical quality to Rexroth Ball Screw Assemblies
range for years.
--
Fast delivery
-–
Attractive prices thanks to cost-effective manufacturing
Benefits
--
Smooth functioning due to the principle of
synchronized planets
--
Very low noise
-–
High linear travel speeds
-–
Large number of contact points
-–
High load ratings
-–
High mechanical efficiency
-–
Long service life
-–
Compact design
-–
High power density
-–
Effective, wiping sealing
-–
Low lubricant consumption
-–
Pre-tensioned units available
-–
High positioning accuracy and repeatability
198
Screw Assemblies | Planetary Screw Assemblies PLSA
Sample applications
Sample applications
Rexroth Planetary Screw Assemblies are used with great suc-
cess in many different application areas:
--
Food and packaging industries
--
Plastic injection molding machines
-–
Printing and paper industry
-–
Machine tools
-–
Medical technology
-–
Measuring and material testing machines
-–
Cutting operations
-–
Robots
-–
Forming operations
-–
Automotive industry
-–
Metals industry
-–
Aerospace industry
-–
Automation and handling
Electric press
Planetary Screw Assemblies PLSA | Screw Assemblies
199
Sample applications
Friction welding machine
200
Screw Assemblies | Planetary Screw Assemblies PLSA
Inquiries and orders
Identification system for short product names PLSA / ordering data
Planetary Screw Assembly
PLSA
20 x 5 R
FEM-E-S
00
1
0
T7
R
812
Z
120
412
Z 120
1250
1
1
Planetary Screw Assembly
Size
Nominal diameter (mm)
Lead (mm)
Direction of lead, R … right
Nut type
ZEM-E-S Cylindrical Single Nut
FEM-E-S Single nut with flange
Nut rework
00 … no rework
Sealing system
0 … without
4 … gap-type seal (standard)
1 … lip-type seal
5 … Wiper
Preload classes
0 … C0 (standard backlash)
1 … C2 (average preload)
Accuracy
T5, T7, T9
Screw
R ... Precision screw
Left screw end
Form:
… standard form
Option:
Z… centering as per DIN 332-D
S… hex socket
G… female thread
K … none
Versions:
Right screw end
... see left screw end
Overall length [mm]
Documentation
1 … standard (acceptance test report)
5 … Two-point compensation
2 … torque test report
6 … lead and torque test report
3 … lead test report
Lubrication
1 … preserved and nut with basic greasing
2 … preserved
Mounting direction of nut types
Definition: The centering diameter on nuts with a flange points to the right end of the screw. The mounting direction for cylindrical nuts is
freely selectable (symmetrical).
Centering diameter D1
Symmetrical keyway
Planetary Screw Assemblies PLSA | Screw Assemblies
201
Inquiries and orders
Overview of formats
ZEM-E-S
FEM-E-S
Abbreviations
C
= dynamic load rating
MAG
= tightening torque of set screw
C0
= static load rating
MRL
= bearing friction torque with seal
d0 x P = size
Mp
= Maximum permissible drive torque
d0
= nominal diameter
(condition: no radial load at drive journal)
FaB
= axial breaking load of slotted nut
Rfb
= rigidity (axial)
G
= female thread
Rkl
= rigidity against tilting
Js
= moment of inertia
P
= lead (R = right-hand)
nG
= limit speed (grease)
vmax
= maximum speed
No.
= part number
S
= hex socket
MA
= tightening torque of slotted nut
Z
= centering hole
202
Screw Assemblies | Planetary Screw Assemblies PLSA
Nuts
Overview of formats/abbreviations
Cylindrical single nut ZEM-E-S
--
With standard seals
-–
Preload class: C0, C2
-–
For precision screws PSR in tolerance
grade T5, T7, T9 (with backlash only)
Note: Delivered only as a complete unit
Ordering code PLSA:
PLSA
20 x 5R
ZEM-E-S
00
4
0
T7
R
822Z150
412Z120
1250
1
1
d0 x P
no.
C1)
C01)
vmax2)
(kN)
(kN)
(m/min)
20 x 5R
R157C A10 03
55
80
37.5
20 x 5R
R157C A10 13
55
80
37.5
25 x 5R
R157C 210 03
65
122
30.0
25 x 10R
R157C 230 03
74
118
60.0
30 x 5R
R157C 310 13
87
178
25.0
30 x 10R
R157C 330 03
101
174
50.0
39 x 5R
R157C 410 03
123
269
19.2
39 x 10R
R157C 430 03
145
271
38.4
48 x 5R
R157C 610 03
188
481
15.6
48 x 10R
R157C 630 03
220
475
31.2
60 x 10R
R157C 730 03
322
780
25.0
60 x 20R
R157C 770 03
375
786
50.0
75 x 10R
R157C 830 03
480
1,487
20.0
75 x 20R
R157C 870 03
544
1,496
40.0
1) The load ratings are valid for tolerance grade T5 only.
For other tolerance grades, please consider the correction factor fac on Page 253.
2) See “Characteristic speed” on page 253 and “Critical speed ncr” on page 270
For the codes, see the chapter entitled “Abbreviations”
Planetary Screw Assemblies PLSA | Screw Assemblies
203
Overview of formats/abbreviations
L
L5
T1
L12
L6
L
11
d0 x P
(mm)
Mass
B P9
D1 g6
L
L5
L6
L11 +0.2
L12
T1 +0.1
S
m (kg)
20 x 5R
4
42
65
34
23.5
18
5.0
2.5
2
0.62
20 x 5R
5
45
64
34
22.0
20
5.0
3.0
2
0.72
25 x 5R
6
53
78
50
26.5
25
5
3.5
5
0.72
25 x 10R
6
53
78
50
26.5
25
5
3.5
5
0.72
30 x 5R
6
64
85
53
26.5
32
5.0
3.5
5
1.25
30 x 10R
6
64
85
53
26.5
32
5.0
3.5
5
1.25
39 x 5R
8
80
100
64
30.0
40
7.0
4.0
5
2.00
39 x 10R
8
80
100
64
30.0
40
7.0
4.0
5
2.00
48 x 5R
8
100
127
87
41.0
45
7.0
4.0
5
4.20
48 x 10R
8
100
127
87
41.0
45
7.0
4.0
5
4.20
60 x 10R
10
122
152
99
53.5
45
10.5
5.0
5
6.82
60 x 20R
10
122
152
99
53.5
45
10.5
5.0
5
6.80
75 x 10R
10
150
191
129
64.0
63
10.5
5.0
5
14.00
75 x 20R
10
150
191
129
64.0
63
10.5
5.0
5
13.70
204
Screw Assemblies | Planetary Screw Assemblies PLSA
Overview of formats/abbreviations
Single nut with flange FEM-E-S
--
With standard seals
-–
Preload class: C0, C2
-–
For precision screws PSR in tolerance
grade T5, T7, T9 (with backlash only)
Note: Delivered only as a complete unit
Ordering code PLSA:
PLSA
20 x 5R
FEM-E-S
00
4
0
T5
R
812Z150
412Z120
1100
1
1
d0 x P
no.
C1)
C01)
vmax2)
(kN)
(kN)
(m/min)
20 x 5R
R157C A10 01
55
80
37.5
20 x 5R
R157C A10 11
55
80
37.5
25 x 5R
R157C 210 01
65
122
30.0
25 x 10R
R157C 230 01
74
118
60.0
30 x 5R
R157C 310 11
87
178
25.0
30 x 10R
R157C 330 01
101
174
50.0
39 x 5R
R157C 410 01
123
269
19.2
39 x 10R
R157C 430 01
145
271
38.4
48 x 5R
R157C 610 01
188
481
15.6
48 x 10R
R157C 630 01
220
475
31.2
60 x 10R
R157C 730 01
322
780
25.0
60 x 20R
R157C 770 01
375
786
50.0
75 x 10R
R157C 830 01
480
1,487
20.0
75 x 20R
R157C 870 01
544
1,496
40.0
1) The load ratings are valid for tolerance grade T5 only.
For other tolerance grades, please consider the correction factor fac on Page 253.
2) See “Characteristic speed” on page 253 and “Critical speed ncr” on page 270
For the codes, see the chapter entitled “Abbreviations”
Planetary Screw Assemblies PLSA | Screw Assemblies
205
Overview of formats/abbreviations
BB1
BB2
S
S
D
7
D7
L5
L3
L4
D6
D6
L
d0 x P
(mm)
D1
D5
Hole pattern
L
D6
D7
L3
L4
L5
S
m (kg)
20 x 5R
42
64
BB1
65
53
5.5
20.0
22.5
11.0
M6
0.65
20 x 5R
45
68
BB1
64
56
5.5
18.0
23.0
11.0
M6
0.75
25 x 5R
56
84
BB1
78
70
6.6
20.0
29.0
15.0
M6
1.34
25 x 10R
56
84
BB1
78
70
6.6
20.0
29.0
15.0
M6
1.34
30 x 5R
64
98
BB1
85
81
9.0
27.0
29.0
13.0
M6
2.10
30 x 10R
64
98
BB1
85
81
9.0
27.0
29.0
13.0
M6
2.10
39 x 5R
80
124
BB1
100
102
11.0
33.0
33.5
15.5
M6
3.70
39 x 10R
80
124
BB1
100
102
11.0
33.0
33.5
15.5
M6
3.70
48 x 5R
105
150
BB1
127
127
13.5
37.0
45.0
25.0
M8 x 1
7.60
48 x 10R
105
150
BB1
127
127
13.5
37.0
45.0
25.0
M8 x 1
7.60
60 x 10R
122
180
BB1
152
150
17.5
45.0
53.5
27.0
M8 x 1
11.30
60 x 20R
122
180
BB1
152
150
17.5
45.0
53.5
27.0
M8 x 1
11.30
75 x 10R
150
210
BB2
191
180
17.5
45.0
73.0
42.0
M8 x 1
19.40
75 x 20R
150
210
BB2
191
180
17.5
45.0
73.0
42.0
M8 x 1
20.20
206
Screw Assemblies | Planetary Screw Assemblies PLSA
Screws
Precision screw PSR
Planetary Screw Assemblies PLSA | Screw Assemblies
207
Screws
Ltot
d0 x P
(mm)
Mass
Length
Js
m
d1
d2
Standard
on request
(kgcm2/m)
(kg/m)
20 x 5R
20.3
19.5
1,500
2,500
1.22
2.45
25 x 5R
25.3
24.1
2.99
3.85
25 x 10R
25.6
24.0
2.96
3.82
30 x 5R
30.3
29.5
6.21
5.54
30 x 10R
30.5
29.1
6.15
5.51
39 x 5R
39.3
38.5
17.64
9.36
39 x 10R
39.5
38.1
17.64
9.33
3,000
5,000
48 x 5R
48.3
47.5
40.88
14.21
48 x 10R
48.5
47.1
40.62
14.16
60 x 10R
60.5
59.1
99.38
22.15
60 x 20R
61.1
58.1
98.38
22.03
75 x 10R
75.5
74.1
243.37
34.67
75 x 20R
76.1
73.1
241.32
34.51
Precision screws PSR, with
mechanically connected
screw ends
0,5
C
0,5 x 45°
mechanically connected
These screws consist of
--
a precision screw part and
-–
an unmachined spigot (as the screw
journal).
The spigot is mechanically connected on one
side and is available in different sizes.
C
To prevent problems arising when using big
LS
LR
end bearing journals (for example, visible
thread grooves or axial contact faces that are
Ltot
too small for the fixed bearing), we offer appro-
priate solutions.
Please consult us.
d0 x P
Tolerance grade
(mm)
(mm)
DR
LR
Ltot
LS
Separate delivery of a screw without end
-1
+2
machining and without nut is not planned.
20 x 5R
36.40
200
1,700
1,500
25 x 5R/10R
36.40
200
1,700
1,500
30 x 5R/10R
46.10
250
2,050
1,800
39 x 5R/10R
T5
76.25
400
2,300
1,900
48 x 5R/10R
80.40
400
2,300
1,900
60 x 10R/20R
98.30
600
3,500
2,900
75 x 10R/20R
110.40
600
3,500
2,900
208
Screw Assemblies | Planetary Screw Assemblies PLSA
Screw ends
Overview of screw ends:
Screw ends, forms for a left or right screw end
Basic version
with keyway
Page 209
002
112
122
Page 210
Page 210
Page 212
Page 212
132
142
Page 214
Page 214
212
222
312
Page 216
412
Page 218
512
page 220
522
page 220
page 222
page 222
532
542
page 224
page 224
612
622
page 226
page 226
712
722
812
Page 228
822
Page 228
832
Page 230
842
Page 230
912
page 232
page 232
922
932
page 234
942
page 234
Planetary Screw Assemblies PLSA | Screw Assemblies
209
Screw ends
Abbreviations
C
= dynamic load rating
MAG
= tightening torque of set screw
C0
= static load rating
MRL
= bearing friction torque with seal
d0 x P = size
Mp
= maximum permissible drive torque (condition:
d0
= nominal diameter
no radial load at drive journal)
FaB
= axial breaking load of slotted nut
Rfb
= rigidity (axial)
G
= female thread
Rkl
= rigidity against tilting
nG
= limit speed (grease)
P
= lead (R = right-hand)
No.
= part number
S
= hex socket
MA
= tightening torque of slotted nut
Z
= centering hole
Form 002
Option (machining of end face)
K
None
Z
tZ
S
tS
S
002
G
tG
Ordering data:
PLSA
20 x 5R
FEM-E-S
00
1
0
T7
R
002K200
822K150
1250
1
1
Form
Version
Size
(mm)
d0 x P
Z
tZ
S
tS
G
tG
002
200
20 x 5
M6
16.0
8
8
M6
9
250
25 x 5/10
M8
19.0
10
10
M8
12
300
30 x 5/10
M10
22.0
12
12
M10
15
390
39 x 5/10
M12
28.0
14
14
M12
18
480
48 x 5/10
M16
36.0
17
17
M16
24
600
60 x 10/20
M20
42.0
17
17
M20
30
750
75 x 10/20
M20
42.0
19
19
M24
36
210
Screw Assemblies | Planetary Screw Assemblies PLSA
Screw ends
Form 112, 122
Option (machining of end face)
K
None
Z
tZ
Undercut Form E DIN 509
Thread undercut
DIN 76 short
112
S
tS
L1
L2
LG1
S
Ljf
b x l x t
G
122
tG
Ordering data:
PLSA
20 x 5R
FEM-E-S
00
1
0
T7
R
122Z151
412K120
1250
1
1
Form
Version1)
Size
(mm)
DIN 68852) keyway
d0 x P
Ljf
D1
L1
D2
L2
G1
LG1
b
l
t
Z
tZ
S
tS
G
tG
h6
h7
P9
112
150
20x5
60
15
23
12
25
M12x1
12
4
20
2.5
M4
10.0
4
4
M5
8
1222)
151
20x5
87
15
50
12
25
M12x1
12
4
20
2.5
M4
10.0
4
4
M5
8
170
25x5/10
100
17
48
15
30
M15x1
22
5
25
3,0
M5
12,5
4
4
M6
9
171
25x5/10
106
17
54
15
30
M15x1
22
5
25
3.0
M5
12.5
4
4
M6
9
200
30x5/10
116
20
54
18
40
M17x1
22
6
28
3.5
M6
16.0
5
5
M6
9
201
30x5/10
120
20
58
18
40
M17x1
22
6
28
3.5
M6
16.0
5
5
M6
9
300
39x5/10
130
30
54
28
50
M25x1.5
26
8
36
4.0
M10
22.0
8
8
M10
15
301
39x5/10
150
30
74
28
50
M25x1.5
26
8
36
4.0
M10
22.0
8
8
M10
15
350
48x5/10
152
35
66
32
60
M30x1.5
26
10
40
5.0
M10
22.0
10
10
M12
18
351
48x5/10
168
35
82
32
60
M30x1.5
26
10
40
5.0
M10
22.0
10
10
M12
18
450
60x10/20
186
45
98
42
60
M40x1.5
28
12
50
5.0
M16
36.0
12
12
M16
24
600
75x10/20
234
60
122
58
80
M50x1.5
32
16
63
6.0
M16
36.0
17
17
M20
30
1) The allocation of screw ends to the bearing assemblies is clearly defined by the version.
2) Keyway with form 122 only
3) Under preparation
For the codes, see the chapter entitled “Abbreviations”

 

 

 

 

 

 

 

Content      ..     12      13      14      15     ..