GN 808.3

Kruiskoppelingen, Verbindingen

__logo__RoHS__

Omschrijving

1Specification

Bore codes

  • Version K: with keyway

Steel

blank

Joint bearing areas, pins

case hardened

2Information

Universal joint shafts with needle bearing GN 808.3 not only join the offset between two shafts, but also enable the alignment of lengths, which depending on the overall length l1 enables the corresponding extraction length l2. The power transmission is achive-bed by two universal joints  DIN 808 (type EW) a splined shaft and a sliding sleeve. It is important to check the accuracy when connecting the splined shaft to the sliding sleeve. The markings -> <- have to be opposite to each other. Any kind of misconnection leads to an inhomogeneous output and to a quick abrasion.

3On request
  • different length l1 - l2
  • Bores without keyway
  • Bores with square
  • with other or unequal bores
4Technical information
  • Keyway DIN 6885
  • Cross holes GN 110
  • ISO-Fundamental Tolerances 
5Mounting information
 

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.

6Selection of the size

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 to the r.p.m. n. 

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 is arrived at 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 is arrived at 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.

 

Scroll horizontaal onderaan de tabel en / of selecteer filters voor het gewenste resultaat

Code

Omschrijving

Aantal

Prijs

Bestel

CAD

d3

t +1

Gewicht

d1

l5

l3

d2 H7

l1 l2

Selecteer
161611107 GN 808.3-22-K10-140-30
€ 350,98
22 12 320 22 48 30 K 10 140-30
161611116 GN 808.3-22-K10-160-40
€ 350,98
22 12 360 22 48 30 K 10 160-40
109559180 GN 808.3-22-K10-180-60
€ 352,50
22 12 395 22 48 30 K 10 180-60
109559185 GN 808.3-25-K12-160-30
€ 365,11
26 13 500 25 56 40 K 12 160-30
109559190 GN 808.3-25-K12-180-45
€ 365,11
26 13 510 25 56 40 K 12 180-45
161611106 GN 808.3-25-K12-200-70
€ 373,36
26 13 563 25 56 40 K 12 200-70
161611111 GN 808.3-25-K12-250-105
€ 374,32
26 13 755 25 56 40 K 12 250-105
109559195 GN 808.3-28-K14-170-30
€ 387,70
29 13 627 28 60 40 K 14 170-30
109559200 GN 808.3-28-K14-200-60
€ 387,70
29 13 730 28 60 40 K 14 200-60
161611108 GN 808.3-28-K14-220-80
€ 407,29
29 13 804 28 60 40 K 14 220-80
109559205 GN 808.3-28-K14-280-140
€ 407,29
29 13 972 28 60 40 K 14 280-140
161611113 GN 808.3-32-K16-190-30
€ 396,30
32 16 910 32 68 40 K 16 190-30
109559210 GN 808.3-32-K16-240-80
€ 404,13
32 16 1106 32 68 40 K 16 240-80
161611099 GN 808.3-32-K16-275-115
€ 404,13
32 16 1250 32 68 40 K 16 275-115
109559215 GN 808.3-32-K16-380-210
€ 403,82
32 16 1640 32 68 40 K 16 380-210
161611105 GN 808.3-36-K18-230-50
€ 426,92
37 17 1355 36 74 40 K 18 230-50
161615100 GN 808.3-36-K18-270-100
€ 425,56
37 17 1575 36 74 40 K 18 270-100
109559220 GN 808.3-36-K18-290-110
€ 439,05
37 17 190 36 74 40 K 18 290-110
109559225 GN 808.3-36-K18-400-220
€ 439,05
37 17 2241 36 74 40 K 18 400-220
161615118 GN 808.3-42-K20-250-50
€ 461,36
42 18 1947 42 82 45 K 20 250-50
109559230 GN 808.3-42-K20-320-120
€ 482,86
42 18 2480 42 82 45 K 20 320-120
100716490 GN 808.3-42-K20-420-220
€ 491,54
42 18 3130 42 82 45 K 20 420-220
109559235 GN 808.3-45-K22-270-50
€ 507,45
47 22 2540 45 95 50 K 22 270-50
109559240 GN 808.3-45-K22-330-100
€ 526,07
47 22 3060 45 95 50 K 22 330-100
109559245 GN 808.3-45-K22-470-240
€ 526,07
47 22 4140 45 95 50 K 22 470-240
109559250 GN 808.3-50-K25-295-50
€ 525,98
52 26 3375 50 108 50 K 25 295-50
109559255 GN 808.3-50-K25-350-100
€ 544,91
52 26 3940 50 108 50 K 25 350-100
109559260 GN 808.3-50-K25-420-170
€ 547,30
52 26 4680 50 108 50 K 25 420-170
109559265 GN 808.3-58-K30-330-50
€ 607,43
58 29 4900 58 122 60 K 30 330-50
109512535 GN 808.3-58-K30-400-110
€ 623,26
58 29 5800 58 122 60 K 30 400-110