Product Center

Products

Product Center

NUPEX Combination Flexible Coupling
NUPEX Combination Flexible Coupling

MengziNUPEX Combination Flexible Coupling

The NUPEX combination elastomeric coupling is a high-performance coupling developed and launched onto the market in 2000 by Schenck Power specifically for the characteristics of variable-frequency drive units. After successful application at the Jinxi Petrochemical Plant, more than 300 units have been installed to date, all operating smoothly and delivering excellent results.

Category:

MengziNUPPEX Combination Flexible Coupling

Phone: +86 24 25830257

Product Description

Product Features
The NUPEX combination flexible coupling is a high-performance coupling developed and launched onto the market in 2000 by Schenck Power specifically for the characteristics of variable-frequency drive units. After successful application at the Jinxi Petrochemical Plant, more than 300 units have been installed to date, all operating smoothly and delivering excellent performance. Its structural features are as follows:
1. Supported by new U.S. technology, featuring an NUP+ diaphragm combination design.
2. Finite element equal-strength design—lighter, more convenient, and safer.
3. Automatic self-aligning feature can accommodate misalignment in all directions of the unit, requiring only rough alignment during installation.
4. The polyurethane rubber sleeve features pressure resistance, self-lubrication, and permanent elasticity; the three stiffness levels are selected based on torque calculation results.
5. Built-in joint bearing provides radial support up to 5 tons, completely eliminating the need for intermediate radial supports.
6. The deflection stiffness of the intermediate shaft can be adjusted to avoid critical rotational speeds and improve the dynamic characteristics of the unit’s rotor.
7. Fully absorbs variable-frequency harmonic impacts, provides shock absorption, and operates silently.
8.3 DH phase magnetic strip and counterweight screw holes allow for correction of shaft system imbalance.



Figure 3.2 NUPEX Composite Elastic Coupling

 

Table 3-2: Technical Parameters and Main Dimensions of the NUPEX Composite Elastic Coupling

Model Rated torque
Mr.
N.m 		Peak torque
City of Tp
N.m 		Permissible Rotational Speed
revolutions per minute 		D
mm 		d
Max
mm 		S
mm 		L
mm 		Moment of inertia
Kg·m² 		Torsional stiffness
MNm/rad 		Misalignment absorption capability
Axial
mm 		Angular direction
°
NUPEX162 920 1800 4300 162 75 4 60 0.132 0.02 4 1.5
NUPEX178 1000 2100 3800 178 80 4 70 0.14 0.036 4 1.5
NUPEX198 1200 2300 3400 198 90 4 80 0.148 0.054 5 1.5
NUPEX228 1800 3600 3000 228 100 5 90 0.159 0.114 5 1.5
NUPEX252 2600 5200 2700 252 120 5 100 0.17 0.19 6 1.8
NUPEX285 4500 9000 2400 285 130 5 110 0.179 0.35 6 1.8
NUPEX320 5500 11000 2100 320 140 5 125 0.19 0.46 6 1.8
NUPEX360 9000 18000 1900 360 160 5 140 0.2 0.13 7 1.8
NUPEX400 13000 27000 1700 400 170 6 160 0.212 1.9 7 2.5
NUPEX450 22000 44000 1500 450 195 6 180 0.22 3.6 7 2.5
NUPEX500 27000 54000 1350 500 220 6 200 0.23 5.8 8 2.5
NUPEX560 42000 84000 1200 560 235 6 220 0.24 10.4 8 2.5
NUPEX630 48000 95000 1050 630 250 6 240 0.25 16 8 2.5
NUPEX710 70000 142000 950 710 270 6 260 0.26 30 8 3.0
NUPEX800 81000 162000 850 800 295 6 290 0.27 47 10 3.0
NUPEX900 123000 245000 750 900 320 8 320 0.28 85 10 3.0
NUPEX1000 140000 280000 680 1000 350 8 350 0.29 125 10 3.0

Note: The shaft hole length L is a recommended value; users may specify their own values.
　　The values for the moment of inertia and torsional stiffness are given for E = 1 m; the final values are shown in the drawing.
　　The axis spacing E, as required by the user, shall be ≤10 m.

 

 

 

 

Previous entry

MengziNUP New Elastic Sleeve Pin Coupling

MengziNone

Next episode