PROPERTIES
– Design: Two coupling hubs are concentrically machined with curved jaws.
– Tolerance: Overall clearance between shaft and hub 0,01 to 0,05 mm.
– Material:
+ clamping hub: up to series 450 high strength aluminum, from series 800 and up steel
+ elastomer insert: precision molded, wear-resistant, and thermally stable polymer
– Speeds: See the table below
ISO 2.5 balance grade available
– Properties of Elastomer Coupling model EKL:
+ short compact design
+ easy assembly
+ vibration damping
+ electrically isolating
+ press fit design
+ backlash-free
| EKL Series | 2 | 5 | 10 | 20 | 60 | 150 | 300 | 450 | 800 | |
| Type | A|B|C | A|B|C | A|B|C | A|B|C | A|B|C | A|B|C | A|B|C | A|B|C | A|B|C | |
| Rated torque (Nm) | TKN | 2|2,4|0,5 | 9|12|2 | 12,5|16|4 | 17|21|6 | 60|75|20 | 160|200|42 | 325|405|84 | 530|660|95 | 950|1100|240 |
| Fit length (mm) | C | 6 | 8 | 10,3 | 17 | 20 | 21 | 31 | 34 | 46 |
| Inside diameter possible from Ø to Ø H7 (mm) | D1/2 | 8-Mar | 4-12,7 | 16-Apr | 25-Aug | Dec-32 | 19-36 | 20-45 | 28-60 | 35-80 |
| Inside diameter of elastomer (mm) | DE | 6,2 | 10,2 | 14,2 | 19,2 | 26,2 | 29,2 | 36,2 | 46,2 | 60,5 |
| Outside diameter (mm) | B | 16 | 25 | 32 | 42 | 56 | 66,5 | 82 | 102 | 136,5 |
| Outside diameter with screw head (mm) | BS | 17 | 25 | 32 | 44,5 | 57 | 68 | 85 | 105 | 139 |
| Moment of inertia per hub (10-3 kgm2) | J1/J2 | 0,0003 | 0,002 | 0,003 | 0,01 | 0,04 | 0,08 | 0,3 | 0,66 | 8 |
| Approximate weight (kg) | 0,008 | 0,02 | 0,05 | 0,12 | 0,3 | 0,5 | 0,9 | 1,5 | 8,5 | |
| Fastening screw (ISO 4762) | E | M2 | M3 | M4 | M5 | M6 | M8 | M10 | M12 | M16 |
| Tightening torque of the fastening screw (Nm) | E | 0,6 | 2 | 4 | 8 | 15 | 35 | 70 | 120 | 290 |
| Distance between centerlines (mm) | F | 5,5 | 8 | 10,5 | 15,5 | 21 | 24 | 29 | 38 | 50,5 |
| Distance (mm) | G | 3 | 4 | 5 | 8,5 | 10 | 11 | 15 | 17,5 | 23 |
| Speed standard (min -1) | 15000 | 15000 | 13000 | 12500 | 11000 | 10000 | 9000 | 8000 | 4000 | |
| Speed balanced (10³min-1) | 60|67|45 | 57|65|43 | 53|63|40 | 45|60|35 | 31|31|25 | 22|26|18 | 22|26|16 | 16|17|12 | 13|13|8 | |
| Hub length (mm) | H | 12 | 16,7 | 20,7 | 31 | 36 | 39 | 52 | 57 | 74 |
| Maximum torque* (Nm) | TKmax | 4|4,8|1 | 18|24|4 | 25|32|6 | 34|42|12 | 120|150|35 | 320|400|85 | 650|810|170 | 1060|1350|190 | 1900|2150|400 |
| Overall length (mm) | A | 20 | 26 | 32 | 50 | 58 | 62 | 86 | 94 | 123 |
