DIN 808-STJoints universels

Roulement à friction en acier ,

Joints universels

DIN 808-ST

Code
d1
d2 H7
s H10
l1
l2
l3
l4
t+1 max. assembly length
of the shaft
DIN 808-16-B6-34-EG
16
6
-
34
-
17
-
8
40
DIN 808-16-K6-34-EG
16
6
-
34
-
17
-
8
39
DIN 808-16-V6-34-EG
16
-
V 6*
34
-
17
-
8
40
DIN 808-16-B6-56-DG
16
6
-
-
56
17
22
8
60
DIN 808-16-K6-56-DG
16
6
-
-
56
17
22
8
62
DIN 808-16-V6-56-DG
16
-
V 6*
-
56
17
22
8
60
DIN 808-16-B8-40-EG
16
8
-
40
-
20
-
11
40
DIN 808-16-K8-40-EG
16
8
-
40
-
20
-
11
40
DIN 808-16-V8-40-EG
16
-
V 8*
40
-
20
-
11
40
DIN 808-16-B8-62-DG
16
8
-
-
62
20
22
11
65
DIN 808-16-K8-62-DG
16
8
-
-
62
20
22
11
65
DIN 808-16-V8-62-DG
16
-
V 8*
-
62
20
22
11
64
DIN 808-16-B10-52-EG
16
10
-
52
-
26
-
14
49
DIN 808-16-K10-52-EG
16
10
-
52
-
26
-
14
47
DIN 808-16-V8-52-EG
16
-
V 8*
52
-
26
-
14
56
DIN 808-16-B10-74-DG
16
10
-
-
74
26
22
14
70
DIN 808-16-K10-74-DG
16
10
-
-
74
26
22
14
69
DIN 808-16-V8-74-DG
16
-
V 8*
-
74
26
22
14
75
DIN 808-22-B10-48-EG
22
10
-
48
-
24
-
12
96
DIN 808-22-K10-48-EG
22
10
-
48
-
24
-
12
96
DIN 808-22-V10-48-EG
22
-
V 10*
48
-
24
-
12
100
DIN 808-22-B10-74-DG
22
10
-
-
74
24
26
12
145
DIN 808-22-K10-74-DG
22
10
-
-
74
24
26
12
144
DIN 808-22-V10-74-DG
22
-
V 10*
-
74
24
26
12
142
DIN 808-22-B12-62-EG
22
12
-
62
-
31
-
18
119
DIN 808-22-K12-62-EG
22
12
-
62
-
31
-
18
118
DIN 808-22-V10-62-EG
22
-
V 10*
62
-
31
-
18
123
DIN 808-22-B12-88-DG
22
12
-
-
88
31
26
18
167
DIN 808-22-K12-88-DG
22
12
-
-
88
31
26
18
157
DIN 808-22-V10-88-DG
22
-
V 10*
-
88
31
26
18
178
DIN 808-25-B12-56-EG
25
12
-
56
-
28
-
13
147
DIN 808-25-K12-56-EG
25
12
-
56
-
28
-
13
146
DIN 808-25-V12-56-EG
25
-
V 12*
56
-
28
-
13
145
DIN 808-25-B12-86-DG
25
12
-
-
86
28
30
13
220
DIN 808-25-K12-86-DG
25
12
-
-
86
28
30
13
222
DIN 808-25-V12-86-DG
25
-
V 12*
-
86
28
30
13
215
DIN 808-25-B16-74-EG
25
16
-
74
-
37
-
21
150
DIN 808-25-K16-74-EG
25
16
-
74
-
37
-
21
163
DIN 808-25-V12-74-EG
25
-
V 12*
74
-
37
-
21
189
DIN 808-25-B16-104-DG
25
16
-
-
104
37
30
21
240
DIN 808-25-K16-104-DG
25
16
-
-
104
37
30
21
235
DIN 808-25-V12-104-DG
25
-
V 12*
-
104
37
30
21
260
DIN 808-28-B14-60-EG
28
14
-
60
-
30
-
13
185
DIN 808-28-K14-60-EG
28
14
-
60
-
30
-
13
185
DIN 808-28-V14-60-EG
28
-
V 14*
60
-
30
-
13
175
DIN 808-28-B14-96-DG
28
14
-
-
96
30
36
13
287
DIN 808-28-K14-96-DG
28
14
-
-
96
30
36
13
285
DIN 808-28-V14-96-DG
28
-
V 14*
-
96
30
36
13
275
DIN 808-32-B16-68-EG
32
16
-
68
-
34
-
16
286
DIN 808-32-K16-68-EG
32
16
-
68
-
34
-
16
283
DIN 808-32-V16-68-EG
32
-
V 16*
68
-
34
-
16
274
DIN 808-32-B16-105-DG
32
16
-
-
105
34
37
16
430
DIN 808-32-K16-105-DG
32
16
-
-
105
34
37
16
426
DIN 808-32-V16-105-DG
32
-
V 16*
-
105
34
37
16
420
DIN 808-32-B20-86-EG
32
20
-
86
-
43
-
24
324
DIN 808-32-K20-86-EG
32
20
-
86
-
43
-
24
317
DIN 808-32-V16-86-EG
32
-
V 16*
86
-
43
-
24
348
DIN 808-32-B20-124-DG
32
20
-
-
124
43
38
24
462
DIN 808-32-K20-124-DG
32
20
-
-
124
43
38
24
460
DIN 808-32-V16-124-DG
32
-
V 16*
-
124
43
38
24
488
DIN 808-36-B18-74-EG
36
18
-
74
-
37
-
17
382
DIN 808-36-K18-74-EG
36
18
-
74
-
37
-
17
375
DIN 808-36-V18-74-EG
36
-
V 18*
74
-
37
-
17
366
DIN 808-36-B18-114-DG
36
18
-
-
114
37
40
17
565
DIN 808-36-K18-114-DG
36
18
-
-
114
37
40
17
565
DIN 808-36-V18-114-DG
36
-
V 18*
-
114
37
40
17
536
DIN 808-42-B20-82-EG
42
20
-
82
-
41
-
18
476
DIN 808-42-K20-82-EG
42
20
-
82
-
41
-
18
620
DIN 808-42-V20-82-EG
42
-
V 20*
82
-
41
-
18
570
DIN 808-42-B20-128-DG
42
20
-
-
128
41
46
18
895
DIN 808-42-K20-128-DG
42
20
-
-
128
41
46
18
905
DIN 808-42-V20-128-DG
42
-
V 20*
-
128
41
46
18
880
DIN 808-42-B25-108-EG
42
25
-
108
-
54
-
31
700
DIN 808-42-K25-108-EG
42
25
-
108
-
54
-
31
715
DIN 808-42-V20-108-EG
42
-
V 20*
108
-
54
-
31
774
DIN 808-42-B25-156-DG
42
25
-
-
156
54
48
31
1035
DIN 808-42-K25-156-DG
42
25
-
-
156
54
48
31
1026
DIN 808-42-V20-156-DG
42
-
V 20*
-
156
54
48
31
1060
DIN 808-45-B22-95-EG
45
22
-
95
-
47.5
-
22
781
DIN 808-45-K22-95-EG
45
22
-
95
-
47.5
-
22
773
DIN 808-45-V22-95-EG
45
-
V 22*
95
-
47.5
-
22
743
DIN 808-45-B22-145-DG
45
22
-
-
145
47.5
50
22
1137
DIN 808-45-K22-145-DG
45
22
-
-
145
47.5
50
22
1121
DIN 808-45-V22-145-DG
45
-
V 22*
-
145
47.5
50
22
1109
DIN 808-50-B25-108-EG
50
25
-
108
-
54
-
26
1100
DIN 808-50-K25-108-EG
50
25
-
108
-
54
-
26
1098
DIN 808-50-V25-108-EG
50
-
V 25*
108
-
54
-
26
1000
DIN 808-50-B25-163-DG
50
25
-
-
163
54
55
26
1620
DIN 808-50-K25-163-DG
50
25
-
-
163
54
55
26
1606
DIN 808-50-V25-163-DG
50
-
V 25*
-
163
54
55
26
1555
DIN 808-50-B30-132-EG
50
30
-
132
-
66
-
38
1000
DIN 808-50-K30-132-EG
50
30
-
132
-
66
-
38
1300
DIN 808-50-V25-132-EG
50
-
V 25*
132
-
66
-
38
1251
DIN 808-50-B30-188-DG
50
30
-
-
188
66
56
38
1764
DIN 808-50-K30-188-DG
50
30
-
-
188
66
56
38
1757
DIN 808-50-V25-188-DG
50
-
V 25*
-
188
66
56
38
1790
DIN 808-58-B30-122-EG
58
30
-
122
-
61
-
29
1200
DIN 808-58-K30-122-EG
58
30
-
122
-
61
-
29
1646
DIN 808-58-V30-122-EG
58
-
V 30*
122
-
61
-
29
1565
DIN 808-58-B30-190-DG
58
30
-
-
190
61
68
29
2528
DIN 808-58-K30-190-DG
58
30
-
-
190
61
68
29
2507
DIN 808-58-V30-190-DG
58
-
V 30*
-
190
61
68
29
2420
DIN 808-58-B32-130-EG
58
32
-
130
-
65
-
33
1724
DIN 808-58-K32-130-EG
58
32
-
130
-
65
-
33
1600
DIN 808-58-V30-130-EG
58
-
V 30*
130
-
65
-
33
1280
DIN 808-58-B32-198-DG
58
32
-
-
198
65
68
33
2619
DIN 808-58-K32-198-DG
58
32
-
-
198
65
68
33
2598
DIN 808-58-V30-198-DG
58
-
V 30*
-
198
65
68
33
2598
DIN 808-70-B35-140-EG
70*
35
-
140
-
70
-
35
2780
DIN 808-70-K35-140-EG
70*
35
-
140
-
70
-
35
2786
DIN 808-70-V35-140-EG
70*
-
V 35*
140
-
70
-
35
2650
DIN 808-70-B35-212-DG
70*
35
-
-
212
70
72
35
2040
DIN 808-70-K35-212-DG
70*
35
-
-
212
70
72
35
2100
DIN 808-70-V35-212-DG
70*
-
V 35*
-
212
70
72
35
2100
* not available from stock, requires a minimum order quantity

Universal joints with friction bearing

Version in Steel

Types

  • Type EG: single, friction bearing
  • Type DG: double, friction bearing

Bore codes

  • Version B: without keyway
  • Version K: with keyway
  • Version V: with square

Steel

blank

Joint bearing areas / pins / bearing sleeves

case hardened

Version in Stainless Steel

Types

  • Type EG: single, friction bearing
  • Type DG: double, friction bearing

Bore code

  • Version B: without keyway
  • Version K: with keyway
  • Version V: with square

Stainless Steel AISI 304 NI

Universal joints with needle bearing

Types

  • Type EW: single, needle bearing
  • Type DW: double, needle bearing

Bore codes

  • Version B: without keyway
  • Version K: with keyway
  • Version V: with square

Steel

blank

Joint bearing areas, pins

case hardened

The permissible r.p.m. of universal joints with friction bearing DIN 808 is to a large extent dependent on the type of application such as load, duration, angular disposition as well as lubrication. For over 1000 r.p.m. universal joints with needle bearing should be used

For continuous use ample lubrication is essential. This achieved by fitting the joint with a grease filled gaiter GN 808.1 

  • with other or unequal bores

Permissible r.p.m. and torque 

 

The single universal joints transfer the initial smooth rotation as an irregular rotation. One revolution of the drive shaft via single universal joint will cause the driven shaft to accelerate and decelerate twice. The extent of the irregularity depends on the operating angle ß.

In order to obtain a smooth rotation of the driven shaft two single or one double universal joint is required. In such cases where minor irregularities in the movement are acceptable or where minor operating angles are the norm a single universal joint will do.

 

For a smooth transfer of a rotating speed, the angle of inclination ß must be equal at both ends of the connecting shaft.

 

Due to a misconnection of the universal joint shafts, the irregular rotation of each joint is not compensated, but strengthened. This allows joint bearings and wedge profiles to be destroyed. For this reason, the markings of the universal joint shaft halves have to be opposite to each other.

 

Furthermore the bearings must be as close as possible to the universal joints.

For continuous operation of universal joints with friction bearings adequate lubrication is essential. If drip lubrication is not possible they should be lubricated at least once a day. It is also possible to fit the universal joint with a gaiter GN 808.1 which can be filled with oil or grease.

Universal joints with friction bearing, Type EG

 

The table shows the transferable output N and/or torques M of universal joints DIN 808, type EG (single friction bearing) in relation 

The values are only applicable to a constant speed of rotation, constant load and an operating inclination angle of max. 10°. They are not applicable to universal joints in Stainless Steel.

For larger inclination angles ß a nominal output N increased by the correction coefficient k and/or a nominal torque M has to be selected (see example below).

Conversion formular:

Torque M [Nm] = 9550 N[kW]/n [min-1]

Output N [kW] = M [Nm] x n [min-1]

1 kW = 1.36 PS / 1 PS = 0.736 kW

Example 1

Output to be transferred N = 0.65 kW

R.p.m. n = 230 min-1

Angle of inclination ß = 10°

Correction coefficient k = 1

Indicative output N‘= Nominal output N

Intersection point P results from 0.65 kW and 230 min-1 (which corresponds to a torque of 27 Nm).

The next size up universal joint corresponding to point P is the model with a diameter d1 = 25.

Example 2

Torque to be transferred M = 27 Nm

R.p.m. n = 230 min-1

Angle of inclination ß = 30°

Correction coefficient k = 2.25

Indicative torque = 2.25 x 27 Nm = 60 Nm

Intersection point P1 results from 61 Nm and 230 min-1 (which is equivalent to an indicative output N = 1.47 kW).

The next size up universal joint corresponding to P1 is the model with a diameter d1 = 36.

 

Universal joints with needle bearing, Type EW

 

The table shows the transferable output N and/or torques M of universal joints DIN 808, type EW (single needle bearing) in relation 

The values are only applicable to a constant speed of rotation, constant load and an operating inclination angle of max. 10°.

For larger inclination angles ß a nominal output N increased by the correction coefficient k and/or a nominal torque M has to be selected (see example below).

Conversion formular:

Torque M [Nm] = 9550 N[kW]/n [min-1]

Output N [kW] = M [Nm] x n [min-1]

1 kW = 1.36 PS / 1 PS = 0.736 kW

Example 1

Torque to be transferred N = 5.5 kW

R.p.m. n = 2300 min-1

Angle of inclination ß = 10°

Correction coefficient k = 1

Indicative output N‘= Nominal output N

Intersection point P results from 5.5 kW and 2300 min-1 (which corresponds to a torque of 23 Nm).

The next size up universal joint corresponding to point P is the model with a diameter d1 = 28.

Example 2

Torque to be transferred M = 23 Nm

R.p.m. n = 2300 min-1

Angle of inclination ß = 18°

Correction coefficient k = 1.43

Indicative torque = 1.43 x 23 Nm = 33 Nm

Intersection point P1 results from 33 Nm and 2300 min-1 (which is equivalent to an indicative output N = 7.9 kW).

The next size up universal joint corresponding to P1 is the model with a diameter d1 = 32.

 
Related products
Guêtres

GN 808.1

Guêtres Guêtres
Arbres à cardan avec roulement à friction

GN 808.2

Arbres à cardan avec roulement à friction Arbres à cardan avec roulement à friction
Arbres à cardan avec roulement à aiguilles

GN 808.3

Arbres à cardan avec roulement à aiguilles Arbres à cardan avec roulement à aiguilles
Roulement à friction simple

GN 9080-EG

Joints universels Joints universels