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Applications in the Papermaking Industry -- Electrically Insulated Series Echt-Flex Couplings

Prevents unexpected electrolytic corrosion (bearing damage) on reducers and equipment due to current leakage from the motor.
A spacer with an insulation resistance greater than 1MΩ is installed in all couplings, after which they are tested for voltage resistance and insulation properties before being shipped. We can manufacture spacers to any length as well.

*Contact a Tsubaki representative for more information on this product.

Dimensional Diagram

Dimensional Diagram
  • 01 Hub
  • 02 Reamer bolt
  • 03 Washer
  • 04 Disc
  • 05 U-nut
  • 06 Insulation adapter A
  • 07 Insulation adapter B
  • 08 Insulation plate
  • 09 Insulation bolt

Kilowatt Ratings and Dimensions Chart

Model No. Allowable Torque
N·m
Max. RPM
r/min
pilot bore Keyway Max. Bore Dia. A B E H J K Weight
kg
Moment of Inertia
kg·cm2
NEF80W 784 6900 15 60 320.6 47.8 11.7 84 225 143 13 349
NEF130W 1270 5700 25 74 346.4 57.2 16.8 106 232 168 18 668
NEF210W 2060 5000 25 83 398 63.5 17 118 271 194 29 1427
NEF340W 3330 4400 45 95 430.4 76.2 21.6 137 278 214 37 2213
NEF540W 5290 3400 50 109 484.8 88.9 23.9 156 307 246 56 4497
NEF700W 6860 3100 50 118 574.2 101.6 27.2 169 371 276 89 9000
NEH09W 8820 3500 70 111 529 110 19 161 309 276 77 7370
NEH14W 13700 3300 70 111 578 127 19 161 324 276 88 8373
NEH20W 19600 3000 75 133 652 146 19 193 360 308 128 15790
NEH30W 29400 2700 75 152 714 165 21.5 218 384 346 177 27583
  • 1. Made-to-order item.
  • 2. Please request delivery specifications when you place your order.
  • 3. Contact a Tsubaki representative regarding model numbers not shown above.
  • 4. Values for total length A and J dimensions are minimum values.
  • 5. Contact a Tsubaki representative regarding smaller minimum values.

Reference Number System

Reference Number System