DI Type (Drop-In Spacer) Coupling

  • Designed to meet the API 610 Standard
  • Support for additional API requirements available on request
  • Unitized disc pack (6 or 8 bolt)
  • Infinite life if properly aligned
  • Torsionally rigid without any back lash
  • No need for lubrication or maintenance
  • No wearing parts and high resistance to harsh environmental conditions
  • ATEX Certified
DI Type (Drop-In Spacer) Coupling

DI Type (Drop-In Spacer) Coupling Additional Resources

The DI Type coupling consists of:

  • Two – Hubs
  • One – Spacer Assembly
  • 2 – Disc Pack Kits

Custom spacer lengths can be specified for special applications.

The coupling has two flex planes (one at each disc pack) so it can accommodate parallel misalignment by the angular misalignment in each disc pack. This configuration will also accommodate axial misalignment within the specified limits.

Nominal

Peak

Max Speed

Max Bore (ID1-ID2)

Weight

Maximum Misalignment

 

Torque

Torque

Unbal Bal

Std Hub

Jumbo Hub

 

Axial (±delta Ka)

Angular

Size

in-lb

Nm

in-lb

Nm

RPM

RPM

in

mm

in

mm

Lbs

kg

in

mm

degrees

90-6

2,100

240

4,200

480

9,100

22,700

1.68

43

2.25

59

8

4

0.059

1.5

1.5°

110-6

5,100

575

10,200

1150

7,200

18,000

2.06

52

2.94

75

12

6

0.083

2.1

1.5°

132-6

9,700

1,100

19,500

2200

5,840

14,600

2.69

67

3.56

90

22

10

0.102

2.6

1.5°

158-6

17,700

2,000

35,400

4000

4,920

12,300

3.13

80

4.13

105

40

18

0.122

3.1

1.5°

185-6

29,200

3,300

58,400

6600

4,200

10,500

3.75

95

4.94

125

62

28

0.146

3.7

1.5°

202-6

40,700

4,600

81,400

9200

3,840

9,600

4.06

102

5.38

135

84

38

0.150

3.8

228-6

62,000

7000

123,900

14000

3,400

8,500

4.50

115

5.94

150

121

55

0.165

4.2

255-6

90,300

10200

180,600

20400

3,080

7,700

4.94

125

6.63

170

159

72

0.185

4.7

278-6

125,700

14200

251,400

28400

2,800

7,000

5.50

140

7.31

185

223

101

0.205

5.2

302-6

177,000

20000

354,000

40000

2,560

6,400

6.13

155

7.88

200

293

133

0.224

5.7

325-6

221,300

25000

442,600

50000

2,400

6,000

6.75

170

8.44

215

353

160

0.256

6.5

345-6

274,400

31000

549,000

62000

2,200

5,500

7.13

180

9.13

230

425

193

0.272

6.9

380-6

374,400

42300

749,000

84600

2,040

5,100

8.31

210

9.88

250

578

262

0.299

7.6

410-6

505,400

57100

1,011,000

114200

1,880

4,700

8.88

225

10.63

270

739

335

0.323

8.2

440-6

650,500

73500

1,301,000

147000

1,740

4,350

9.25

235

11.44

290

875

397

0.346

8.0

*Performance Notes:

  • “Bal” Max Speed requires special balancing
  • Max Bore shown for cylindrical or taper shafts with keys
  • Weight given for complete coupling with min BSE and max bores
  • Axial misalignment data given for two disc packs
  • Angular misalignment data given for one disc pack

Nominal

Peak

Max Speed

Max Bore (ID1-ID2)

Weight

Maximum Misalignment

 

Torque

Torque

Unbal Bal

Std Hub

Jumbo Hub

 

Axial (±delta Ka)

Angular

Size

in-lb

Nm

in-lb

Nm

RPM

RPM

in

mm

in

mm

lbs

kg

in

mm

degrees

278-8

177,000

20000

354,000

40000

2,800

7,000

5.50

140

7.31

185

287

130

0.146

3.7

0.5°

302-8

265,500

30000

531,000

60000

2,560

6,400

6.13

155

7.88

200

362

164

0.157

4.0

0.5°

325-8

327,500

37000

655,000

74000

2,400

6,000

6.75

170

8.50

215

470

213

0.169

4.3

0.5°

345-8

407,100

46000

814,000

92000

2,200

5,500

7.13

180

9.06

230

551

250

0.181

4.6

0.5°

380-8

557,500

63000

1,115,000

126000

2,040

5,100

8.31

210

10.13

255

717

325

0.197

5.0

0.5°

410-8

761,000

86000

1,522,000

172000

1,880

4,700

8.88

225

10.94

275

908

412

0.213

5.4

0.5°

440-8

973,500

110000

1,947,000

220000

1,740

4,350

9.25

235

11.88

300

1,058

480

0.228

5.8

0.5°

475-8

1,221,000

138000

2,443,000

276000

1,680

4,200

9.94

250

12.63

320

1,393

632

0.248

6.3

0.5°

505-8

1,549,000

175000

3,098,000

350000

1,520

3,800

10.88

275

13.44

341

1,750

794

0.264

6.7

0.5°

540-8

1,947,000

220000

3,894,000

440000

1,440

3,600

11.63

295

14.25

360

1,852

840

0.283

7.2

0.5°

570-8

2,292,000

259000

4,585,000

518000

1,360

3,400

12.63

320

15.25

385

2,094

950

0.299

7.6

0.5°

*Performance Notes:

  • “Bal” Max Speed requires special balancing
  • Max Bore shown for cylindrical or taper shafts with keys
  • Weight given for complete coupling with min BSE and max bores
  • Axial misalignment data given for two disc packs
  • Angular misalignment data given for one disc pack