- Diaphragm coupling
- Gear coupling
- Snake spring coupling
- Pin coupling
- Cardan shaft
- Plum blossom/star coupling
- Roller chain coupling
- Tire coupling
- Elastic block coupling
- Flange coupling
- Safety coupling
- Expansion sleeve
- Power station oil station liquid couple accessories
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The semi-coupling adopts precision casting, cast iron HT20-40, cast steel ZG35Ⅱ, and the shaft hole and keyway are formed by drawing. The inner gear coupling elastomer jacket can be selected from various hardness synthetic rubber grease rubber according to the user's requirements; Reinforced cast nylon elastomer and other materials.
NL4 internal tooth elastic coupling (keyway according to GB3852-83 standard)
Active shaft: d1=38 L1=80
Driven shaft: d2=30 L21=50
表示为NL4:38×80/30×50(非标注明键槽尺寸)
NL type nylon inner tooth elastic couplingBasic parameters and main dimensions mm
model |
Nominal torque Tn (NM) |
Allowable speed n (r/min) |
Main size (mm) | Maximum size deviation |
Moment of inertia (KgC m 2) |
weight (Kg) |
||||||||
Diameter of shaft hole d1 d2 |
Length of shaft hole |
L | D |
D1 D2 |
E | L3 | Axial (mm) | Radial (mm) | Angle α° | |||||
NL1 | 40 | 6000 | 6 8 10 |
16 20 25 32 |
37 45 55 69 |
40 |
26 | 4 | 34 | 2 | ± 0.3 | 1 ° | 0.25 | 0.85 |
12 14 | ||||||||||||||
NL2 | 100 | 6000 | 10 12 14 22 |
25 32 42 52 |
57 71 91 111 |
42 |
36 | 4 | 40 | 2 | ± 0.4 | 1 ° | 0.92 | 1.7 |
16 18 20 24 | ||||||||||||||
NL3 | 160 | 6000 | 20 22 24 | 52 62 |
113 133 |
66 |
44 | 4 | 46 | 2 | ± 0.4 | 1 ° | 3.10 | 2.6 |
25 28 | ||||||||||||||
NL4 | 250 | 6000 | 28 30 32 | 62 82 |
129 169 |
83 |
58 | 4 | 48 | 2 | ± 0.4 | 1 ° | 8.69 | 3.6 |
35 38 | ||||||||||||||
NL5 | 315 | 5000 | 32 35 38 | 82 112 |
169 229 |
93 |
68 | 4 | 50 | 3 | ± 0.4 | 2 ° | 14.28 | 5.5 |
40 42 | ||||||||||||||
NL6 | 400 | 5000 | 40 42 45 | 82 112 |
230 |
100 |
68 | 4 | 52 | 3 | ± 0.4 | 2 ° | 18.34 | 6.8 |
48 | ||||||||||||||
NL7 | 630 | 3600 | 45 48 50 | 82 112 |
229 |
115 |
80 | 4 | 60 | 3 | ± 0.6 | 2 ° | 56.5 | 9.8 |
55 | ||||||||||||||
NL8 | 1250 | 3600 | 48 50 55 | 112 142 |
229 289 |
140 |
96 | 4 | 72 | 3 | ± 0.6 | 2 ° | 98.55 | 26.5 |
60 63 65 | ||||||||||||||
NL9 | 2000 | 2000 | 60 63 65 | 142 172 |
295 351 |
175 |
124 | 6 | 93 | 4 | ± 0.7 | 2 ° | 370.5 | 37.6 |
70 71 75 80 | ||||||||||||||
NL10 | 3150 | 1800 | 70 71 75 80 |
142 172 212 |
292 352 432 |
220 |
157 | 8 | 110 | 4 | ± 0.7 | 2 ° | 1156.8 | 55 |