ECHT-FLEX Coupling NEF Series Major Specifications

Model No. ：NEF18W-NH30JD2XKH38JD2


[Click to enlarge ]

This drawing is for NEF□□W-KRXNR.
Refer to the PDF outline drawings or contact us for detail drawings.

PDF Outline Drawing

Model No. ：NEF18W-NH30JD2XKH38JD2

CAD data in DXF format

Contact us for details.

(Click here for a list of all DXF files )

3D CAD data

Contact us for details.

Standard Price

Contact us for details.

Delivery

Contact us for details.

Coupling selection calculator

Catalogs ・Instruction Manuals

Transmission Capacity and Dimensions

Units ：mm
Allowable Torque Max. Rotation Speed
r/min		 Plain Bore
d		 Standard Stock Bore Dia. Range Keyway Maximum Shaft Diameter Φ Torsional Rigidity Axial Spring Constant
N･m {kgf･m} Standard Hubs Long Hub Extended Dia. Hub N･m/rad {kgf･m/rad} N/mm {kgf/mm}
176 18 18000 12 14～35 35 35 42 7.84×104 0.8×104 63.7 6.5
PCD A1 A2 B BL E F H HL J K
71 104.4 120.7 28.7 45 8.3 9 51 66 47 93
Dd N No Ni T T' Allowable Misalignment Mass
kg		 Moment of Inertia
kg･m2		 GD2
{kgf･cm2}
Angular Misalignment
deg		 Parallel Misalignment Axial Displacement
mm
39 38 48 38 23 6.7 2 0.6 ±2.4 2.3 25×10-4 100

Note)
　1．Refer to the Table of Dimensions for long hub and extended-diameter hub dimensions. For long hubs, the overall length will be extended for as much as dimension B is lengthened.
　2．The maximum speed depends on the transmission capacity of the coupling. No balance adjustment has been conducted.
　3．The weight, moment of inertia, and GD2 are given for the maximum bore diameter (keyway) for a standard hub. For extended-diameter hubs and long hubs, add the value given in the Additional GD2 Table.
　4．Tsubaki can make models with non-standard spacer lengths. Refer to the page for the Long Spacer Type.
　5．The allowable axial displacement is based on the assumption that the angular misalignment is 0.
　6．Check that the key surface pressure is in accordance with your operating conditions. The hub is made of S45C.

Coupling selection calculator