NL internal tooth elastic coupling
In order to meet the needs of the renewal and transformation of various machinery and the introduction of equipment and spare parts, our company can provide a complete range of internal tooth-shaped elastic couplings. Our factory has launched a series of products such as spline holes, tapered holes, and inch holes. Users need to accept non-standard orders.
The inner tooth elastic coupling is the newest domestic product at present, and it has been widely adopted abroad. The NL type-nylon inner gear ring drum gear coupling half coupling adopts precision casting, cast iron HT20-40, Cast steel ZG35Ⅱ, No. 45 steel, the shaft hole and keyway are made by drawing, and the inner gear coupling elastomer jacket can be selected from various hardness synthetic nylon, reinforced cast nylon elastomer and other materials according to user requirements. NL inner tooth elastic coupling ordinary nylon jacket has undergone a series of improvements, using high-strength glass fiber nylon 66 injection molding, injection temperature 330C, pressure 9MPA, time 4S, heat treatment for 1 hour and humidification for 24 hours after molding , Its strength exceeds 3 times that of ordinary nylon.This product is designed by the Jinan Foundry and Metalforming Machinery Research Institute of the Machinery Committee. It is suitable for flexible transmission between shafts and allows large axial radial displacement and angular displacement. It has simple structure, convenient maintenance, easy disassembly and assembly, and low noise. , The advantages of low transmission efficiency loss and long service life are very popular among users.The shaft hole types are cylindrical (Y), conical (Z) and short cylindrical (J).The shaft hole and keyway are processed in accordance with the national standard GB3852-83 "Coupling shaft hole and keyway form and size".The working temperature is -20~+70℃.
TGL Type—Nylon Internal Gear Ring Drum Gear Coupling NL type nylon inner gear ring elastic coupling
Basic parameters and main dimensions of NL internal tooth elastic coupling
● The internal tooth-shaped elastic coupling is currently the latest domestic product and has been widely used abroad. This product is designed by the Jinan Foundry and Forging Machinery Research Institute of the Machinery Committee. It is suitable for flexible transmission between shafts and allows larger It has the advantages of simple structure, convenient maintenance, easy disassembly and assembly, low noise, low transmission efficiency loss, and long service life. It is very popular with users.The shaft hole types are cylindrical (Y), conical (Z) and short cylindrical (J).The shaft hole and keyway are processed in accordance with the national standard GB3852-83 "Coupling shaft hole and keyway form and size".The working temperature is -20~+70℃.
●The semi-coupling adopts precision casting, cast iron HT20-40, cast steel ZG35Ⅱ, the shaft hole and keyway are made by drawing, and the inner gear coupling elastomer jacket can be selected from various hardness synthetic rubber grease rubber according to user requirements. ; Reinforced cast nylon elastomer and other materials.In order to meet the needs of the renewal and transformation of various machinery and the introduction of equipment and spare parts, our company can provide a complete range of internal tooth-shaped elastic couplings, and can accept non-standard orders according to user needs.Hydraulic coupling
Order marking method:
For example: 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)
Model |
Nominal torque Tn (NM) |
Allowable speed n (r/min) |
Main size (mm) | *Large 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 |