Rigid Flange Couplings

Rigid Flange Couplings are manufactured for Rotech Systems in South Africa according to international standards. Rigid flange couplings are primarily used on conveyor belt drives holding the gearbox shaft to the drive pulley shaft, using two rigid flanges with the 1014 type locking elements, locking each flange to the respective shaft and then bolted together making it a parallel rigid coupling connection.

Size Shaft Diametre (mm) Weight (kg) Torque (Nm) Flange Connecting Bolts Number of Bolts
170/260 min. 50 32 6 300 M14 x 16 8
max. 70 30 10 000
200/320 min. 70 39 16 000 M16 x 75 8
max. 90 37 20 000
230/400 min. 95 47 28 000 M24 x 100 8
max. 115 45 35 500
270/400 min. 115 55 45 000 M24 x 100 8
max. 140 51 56 000
330/560 min. 140 112 90 000 M30 x 120 18
max. 170 105 112 000
390/560 min. 170 137 160 000 M30 x 120 18
max. 210 125 200 000
430/630 min. 170 160 160 000 M30 x 130 18
max. 210 148 200 000
470/630 min. 210 199 255 000 M30 x 130 18
max. 250 183 315 000
510/710 min. 250 299 375 000 M30 x 130 24
max. 270 249 400 000
550/710 min. 270 286 475 000 M30 x 130 24
max. 290 275 500 000

Sequence torque – Installation

Assembly

  1. Release all bolts a few turns and transfer at least 3 bolts into each of the tapped holes of part 1 and 3 in order to keep a gap between pans 1 & 2 spaced from 3. The 1014 has a self locking taper.
  2. Lubricate the locking ring (machine oil) before installation (do not use Molybdenum disulfide MoS2).
  3. After installing onto shaft, transfer the bolts from the jacking holes In parts 1 & 3 into the taped holes of part 2.
  4. Before tightening the bolts, turn the connecting flange until the split is vertical on the topside of the shaft.
  5. Hand tightening the bolts progressively, starting next to the split and alternating diagonally. Check the run out and dimension A for equal distance. Correct any misalignment. At this point the run out should not exceed 0.05 at the face of the coupling. Excessive misalignment can cause permanent damage to the unit.
  6. Then proceed with a torque wrench progressively until the torque setting has been reached. Check final run out and as a guide line the runout could be 0.05 to 0.10.
  7. A slight axial movement will occur during this process (1 mm). Verify the bolt torque (TA) from the catalogue and to not exceed.

Dismantling

  1. Release all bolts. and transfer as many bolts into jacking holes in part 1 & 3 (tapped holes).
  2. Progressively tighten the bolts in the jacking holes. right and left from the split until the assemble comes free.

Technical Information

The 30 Flange coupling consists of 2 connecting flanges -10 and 20, which are locked onto the shafts by the integrated 1014 locking ring, which transmits the torque by friction. The 30 coupling can accommodate bore diameters from 50 to 290 mm. All the parts of the 1014 locking unit are split and have self-locking taper. No Fretting corrosion will occur on the locked contact surface.

Size Bore Length Screw Size Screw TA Nm
50/70 75 M10 83
70/90 90 M12 145
90/115 100 M14 230
115/140 100 M14 230
140/170 128 M16 355
170/210 128 M16 355
170/210 128 M16 355
210/250 150 M20 650
250/270 158 M20 650
270/290 158 M20 650

Applications

  • Pumps
  • Compressors
  • Motors
  • Centrifuges
  • Conveyor Systems
  • Mixing Equipment
  • Agitators
  • Power Transmission Equipment
  • Rolling Mills
  • Generators
  • Printing Presses
  • Marine Propulsion Systems
  • Paper Mills
  • Textile Machinery
  • Oil & Gas Equipment

For more products:

Shaft Encoders

Industry Standard Equipment

Fluid Coupling

Repairs and Balancing

Conveyor Backstop

Conveyor Slow Speed Hold backs and Backstops

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