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Installation and Operational Instructions for

 

EAS

®

-Compact

®

 overload clutch Type 49_._ _4._

 

Sizes 01 to 3 

(B.4.14.1.EN)

 

13/11/2017 GC/NU/GH/SU

 

Chr. Mayr GmbH + Co. KG

 

 

Eichenstraße 1, D-87665 Mauerstetten, Germany

 

 

Tel.: +49 8341 804-0, Fax: +49 8341 804-421

 

Page 7 of  19 

www.mayr.com

E-Mail

[email protected]

 

 

Technical Data Type 494._ _4._ 

Table 8 

 

Bore lastic-side from 

– to 

Nominal and maximum torques

 

 flexible backlash-free shaft coupling T

KN

 and

 

T

K max.

 

 

Clamping hub 

Shrink disk hub 

Key hub 

Type 494._ _ 4.3

 

(yellow 

elastomeric 

element 92 Sh A) 

Type 494._ _ 4.4

 

(red  

elastomeric 

element 98 Sh A) 

Type 494._ _ 4.6

 

(green 

elastomeric 

element 64 Sh D) 

Size 

Type 494._04._

 

[mm] 

Type 494._14._

 

[mm] 

Type 494._24._

 

[mm] 

T

KN

 

[Nm] 

T

K max.

 

[Nm] 

T

KN

 

[Nm] 

T

K max.

 

[Nm] 

T

KN 

 

[Nm] 

T

K max.

 

[Nm] 

01 

15 

– 28 

15 

– 28 

– 28 

35 

70 

60 

120 

75 

150 

19 

– 35 

19 

– 38 

10 

– 38 

95 

190 

160 

320 

200 

400 

20 

– 45 

20 

– 45 

12 

– 45 

190 

380 

325 

650 

405 

810 

28 

– 50 

28 

– 50 

14 

– 55 

265 

530 

450 

900 

560 

1120 

35 

– 55 

35 

– 60 

20 

– 60 

310 

620 

525 

1050 

655 

1310 

 

Table 9 

 

Transmittable torques [Nm] on clamping hubs frictional locking (Type 494._04._ / Ø d

3

) / 

 on shrink disk hubs frictional locking (Type 494._14._ / Ø d

4

– dependent on bore - 

 

suitable for tolerance constellation F7/k6 for clamping hubs and H7/k6 for shrink disk hubs 

Size 

Ø 15 

Ø 16

 

Ø 19

 

Ø 20

 

Ø 22

 

Ø 24

 

Ø 25

 

Ø 28

 

Ø 30

 

Ø 32

 

Ø 35 

d

3

 

d

4

 

d

3

 

d

4

 

d

3

 

d

4

 

d

3

 

d

4

 

d

3

 

d

4

 

d

3

 

d

4

 

d

3

 

d

4

 

d

3

 

d

4

 

d

3

 

d

4

 

d

3

 

d

4

 

d

3

 

d

4

 

01 

34 

56 

36 

62 

43  81 

45 

87 

50 

100 

54 

120 

57  125 

63 

135 

79  141 

83 

153  91 

177  100  203  104  216  116  256  124  282  133  308  145  343 

83 

197  91 

228  100  261  104  279  116  332  124  368  133  405  145  460 

208  300  228  350  248  400  280  500 

350  450 

 

 

 

 

 

 

 

 

 

 

Size 

Ø 38

 

Ø 40

 

Ø 42

 

Ø 45

 

Ø 48

 

Ø 50

 

Ø 52

 

Ø 55

 

Ø 58

 

Ø 60

 

d

3

 

d

4

 

d

3

 

d

4

 

d

3

 

d

4

 

d

3

 

d

4

 

d

3

 

d

4

 

d

3

 

d

4

 

d

3

 

d

4

 

d

3

 

d

4

 

d

3

 

d

4

 

d

3

 

d

4

 

01 

373 

158  513 

166 

547 

174 

577 

187 

617 

315  600 

340 

680 

365 

730 

404 

790 

442 

850 

470 

880 

390  500 

420 

600 

455 

720 

505 

850 

560  1000  600  1180  640  1270  705  1353 

1428 

1471 

 

Table 10 

 

Shaft misalignments flexible coupling Type 494. 

Dimension

 

“E”

 

(Fig. 7)

 

[mm] 

Locking set screw (20.4)

 

for hub (Item 20.3 / Fig. 1) 

 

Axial ΔK

 a

 

Radial ΔK

 r

 

Angular ΔK

 w

 

Size 

[mm] 

92 Sh A

 

[mm] 

98 Sh A

 

[mm] 

64 Sh D

 

[mm] 

92 Sh A

 

[°] 

98 Sh A

 

[°] 

64 Sh D

 

[°] 

Thread

 

 

Tightening 

torque

 

[Nm] 

01 

1.4 

0.14 

0.10 

0.07 

1.0 

0.9 

0.8 

18 

M5 

1.5 

0.15 

0.11 

0.08 

1.0 

0.9 

0.8 

20 

M6 

4.1 

1.8 

0.17 

0.12 

0.09 

1.0 

0.9 

0.8 

24 

M8 

8.5 

2.0 

0.19 

0.14 

0.1 

1.0 

0.9 

0.8 

26 

M8 

8.5 

2.1 

0.21 

0.16 

0.11 

1.0 

0.9 

0.8 

28 

M8 

8.5 

 
 

 

Summary of Contents for EAS-Compact 49 . 4 Series

Page 1: ...l Data Type 493 _ _ 4 0 Page 7 Technical Data Type 494 _ _ 4 _ Page 8 Technical Data Type 496 _ _ 4 _ Page 9 Design Scope of Delivery State of Delivery Function Re engagement Page 10 Output Elements I...

Page 2: ...uation this product is not suitable for use in areas where there is a high danger of explosion This statement is based on the ATEX directive DANGER If the EAS clutches are modified If the relevant sta...

Page 3: ...e 1 D 87665 Mauerstetten Germany Tel 49 8341 804 0 Fax 49 8341 804 421 Page 3 of 19 www mayr com E Mail info mayr com Fig 1 Stroke Type 494 _14 _ Type 494 _04 _ Type 494 _24 _ Type 493 _34 0 Type 493...

Page 4: ...h flange and clamping hub 8 Steel ball 9 Cup spring Additional parts for Type 496 10 Supporting ring Item Name 11 Thrust ring 28 Disk pack 12 Steel ball 29 Connection plate 13 Hexagon head screw 30 He...

Page 5: ...45 28 40 3 4 5 35 55 32 50 Table 3 Type 49_ 5_4 _ Type 49_ 6_4 _ Type 49_ 7_4 _ Type 49_ 8_4 _ Size Maximum torque MG Nm Inspection dimension a Fig 10 at approx 70 MG mm Maximum torque MG Nm Inspectio...

Page 6: ...l torque TKN steel bellows coupling Type 493 Nm Bores steel bellows side Type 493 _14 _ mm Type 493 _24 _ mm Type 493 _34 _ mm Size Axial K a mm Radial K r mm Angular K w 01 0 4 0 15 2 50 9 20 9 20 12...

Page 7: ...on shrink disk hubs frictional locking Type 494 _14 _ d4 dependent on bore suitable for tolerance constellation F7 k6 for clamping hubs and H7 k6 for shrink disk hubs Size 15 16 19 20 22 24 25 28 30...

Page 8: ...on shrink disk hubs frictional locking Type 496 _14 _ dependent on bore suitable for tolerance constellation H7 g6 Size 19 20 22 24 25 28 30 32 35 38 40 42 45 48 50 52 55 60 65 70 01 150 150 150 150 1...

Page 9: ...his means that no re engagement impacts or metallic sliding movements occur on the clutch torque transmission geometries when using this clutch variant In order to make the clutch ready for operation...

Page 10: ...ing hub Type 490 _ _ 4 1 Fig 3 is recommended for extremely wide output elements or for elements with small diameters On very small diameters the output element is screwed together with the clutch pre...

Page 11: ...able device and bring it them into the correct position Tighten the tensioning screws 13 of the cone bushing 15 in 2 steps cross wise and then in 3 to max 6 tightening sequences evenly using a torque...

Page 12: ...ot be transferred via the steel bellows danger of bellows deformation Fig 7 Joining Both Clutch Components 1 20 Type 494 _ _ 4 _ Figs 1 and 7 The flexible elastomeric element 19 is pre tensioned betwe...

Page 13: ...nd 13 refer to clutch operation at nominal torque an ambient temperature of 30 C and an operating speed of 1500 rpm If the clutch is operated in other or more extreme operating conditions please obser...

Page 14: ...ub 1 facing side as shown in Fig 10 Please see Table 3 for the respective values Turning the adjusting nut 4 clockwise causes a reduction in torque Turning it anti clockwise causes an increase in torq...

Page 15: ...rrectly Contactless limit switch mounting example Fig 13 Maintenance and Maintenance Intervals Maintenance work which should be carried out after 2000 operating hours after 1000 disengagements or at t...

Page 16: ...he system out of operation 2 Inspect the clutch at the place of manufacture Worn disengagement mechanism Running noises in normal operation Insufficient clutch securement 1 Set the system out of opera...

Page 17: ...3 Tighten the tensioning and clamping screws for axial hub securement and the connection screws to the required torque or tighten the locking set screw and secure it against self loosening using seali...

Page 18: ...Make sure that further physical changes to the elastomeric element can be ruled out The ambient or contact temperatures permitted for the elastomeric element are exceeded 1 Set the system out of opera...

Page 19: ...crew and secure it against self loosening using sealing lacquer 4 Check the clutch for wear Disk pack breakage Disk pack breakage due to high load impacts overload 1 Set the system out of operation 2...

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