Burgmann Type M7N
Materials:
Rotary Ring: SiC/Ceramic
Stationary Ring: SiC/Carbon
Secondary Seals:FPM/EPDM
Metal parts: SS304/SS316
Stationary Seats:G6,G9,G4,GB
Applications:
Shaft Size =14～100mm
Pressure: 1.50Mpa
Temperature: -40 ～ 200 ℃
Speeds: 20 m/s
Equivalent to Burgmann type M7N, M74
| Size | d1 | d2 | d3 | d4 | L | L1 |
| h6 | H11 | H8 | ||||
| M7N-20 | 20 | 29 | 35 | 35 | 37.5 | 26 |
| M7N-22 | 22 | 31 | 37 | 37 | 37.5 | 26 |
| M7N-24 | 24 | 33 | 39 | 39 | 40 | 28.5 |
| M7N-25 | 25 | 34 | 40 | 40 | 40 | 28.5 |
| M7N-28 | 28 | 37 | 43 | 43 | 42.5 | 31 |
| M7N-30 | 30 | 39 | 45 | 45 | 42.5 | 31 |
| M7N-32 | 32 | 42 | 47 | 48 | 42.5 | 31 |
| M7N-33 | 33 | 42 | 48 | 48 | 42.5 | 31 |
| M7N-35 | 35 | 44 | 50 | 50 | 42.5 | 31 |
| M7N-38 | 38 | 49 | 55 | 56 | 45 | 31 |
| M7N-40 | 40 | 51 | 57 | 58 | 45 | 31 |
| M7N-43 | 43 | 54 | 60 | 61 | 45 | 31 |
| M7N-45 | 45 | 56 | 62 | 63 | 45 | 31 |
| M7N-48 | 48 | 59 | 65 | 66 | 45 | 31 |
| M7N-50 | 50 | 62 | 67 | 70 | 47.5 | 32.5 |
| M7N-53 | 53 | 65 | 70 | 73 | 47.5 | 32.5 |
| M7N-55 | 55 | 67 | 72 | 75 | 47.5 | 32.5 |
| M7N-58 | 58 | 70 | 79 | 78 | 52.5 | 37.5 |
| M7N-60 | 60 | 72 | 81 | 80 | 52.5 | 37.5 |
| M7N-63 | 63 | 75 | 84 | 85 | 52.5 | 37.5 |
| M7N-65 | 65 | 77 | 86 | 85 | 52.5 | 37.5 |
| M7N-68 | 68 | 81 | 89 | 90 | 52.5 | 34.5 |
| M7N-70 | 70 | 83 | 91 | 92 | 60 | 42 |
| M7N-75 | 75 | 88 | 99 | 97 | 60 | 42 |
| M7N-80 | 80 | 95 | 104 | 105 | 60 | 41.8 |
| M7N-85 | 85 | 100 | 109 | 110 | 60 | 41.8 |
| M7N-90 | 90 | 105 | 114 | 115 | 65 | 46.8 |
| M7N-95 | 95 | 110 | 119 | 120 | 65 | 47.8 |
| M7N-100 | 100 | 115 | 124 | 125 | 65 | 47.8 |