Horse Power Rating Chart
Single Stage Reduction Crane Duty Helical Gearboxes-HA Type

SIZE

HA-100

HA-150

RPM

960

720

960

720

Duty

I

II

III

IV

I

II

III

IV

I

II

III

IV

I

II

III

IV

R
A
T
I
O

1.83

24.6

17.6

13.5

10.8

19.2

13.6

10.6

8.45

81.8

59

45.5

36.4

64.8

46

36.6

28.5

2.3

21.3

15.1

11.7

9.35

17.0

12.1

9.35

7.5

71.5

50.7

39.4

31.4

56.7

40.5

31.2

25

2.81

18

12.8

9.9

7.9

14.5

10.8

8.2

6.8

60.5

43

33.3

26.6

48.8

36

27.3

22.9

3.5

15.6

11.1

8.6

6.85

12.8

9.1

7.05

5.6

52.7

37.4

29

23.2

43.2

30.6

23.7

19

3.95

14.2

9.9

7.82

6.25

11.2

8

6.15

4.9

46.5

32.2

25.6

20.4

36.2

26

20

16

4.5

12.6

9.15

7.05

5.5

9.9

7.2

5.5

4.35

42.2

30.6

23.6

18.3

33

24

18.5

14.6

5.6

10.2

7.1

5.4

4.44

8.4

5.95

4.6

3.8

34.4

23.9

18.3

15.3

28.2

20

15.4

12.7

6.615

8.26

5.75

4.4

3.6

6.7

4,7

3.66

3.02

27.9

19.4

14.8

12.4

22.8

16.2

12.5

10.3

8.0

6.7

4.65

3.56

2.92

5.4

3.84

2.95

2.44

22.4

15

11.9

10

18.4

13.1

10.1

8.3

SIZE

HA-200

HA-250

RPM

960

720

960

720

Duty

I

II

III

IV

I

II

III

IV

I

II

III

IV

I

II

III

IV

R
A
T
I
O

1.83

178

126

98

78

139

100

76.5

61

346

246

190

152

270

192

151

119

2.3

158

112

87

69.5

125

89

69

55

308

218

169

135

244

173

134

107

2.81

135

96

74

59.5

109

79.5

62

50

260

184

143

114

210

153

120

98.5

3.5

120

85

66

52.5

98

70

54

43

235

167

130

104

192

136

105

84

3.95

110

76.5

60.7

48.5

86

61

47.5

38

218

153

120

96

170

121

93.5

75

4.5

99

71.5

55.5

43

78

57

43.7

35.4

193

140

108

84

150

109

84

69

5.6

81.5

56.6

43.3

36.2

67

47.5

36.6

30.2

159

111

85.5

69

130

92.2

70.8

58.5

6.615

66.1

47

35.2

29.4

54

38.4

29.5

24.3

129

89.6

69.5

56

105

74.5

57.2

47.2

8.0

53

35.4

28.2

23.6

43.5

30.8

23.8

19.6

102

71

54.2

44.4

83.5

58.5

45.5

37.5

SIZE

HA-300

HA-350

RPM

960

720

960

720

Duty

I

II

III

IV

I

II

III

IV

I

II

III

IV

I

II

III

IV

R
A
T
I
O

1.83

664

470

364

292

520

370

286

229

1050

735

575

460

820

580

450

360

2.3

572

405

314

252

453

322

250

199

910

645

500

400

720

512

396

317

2.81

485

344

266

214

392

286

223

172

768

545

423

337

620

452

352

272

3.5

420

300

231

185

344

244

189

151

667

465

367

294

545

386

300

240

3.95

374

260

207

165

290

206

160

130

605

420

334

266

470

334

260

206

4.5

336

243

188

146

262

191

145

118

530

384

297

231

414

302

232

186

5.6

275

191

146

120

226

160

123

102

437

304

232

190

358

254

195

161

6.615

223

155

118.5

97

182

129

99

82

354

246

188

154

290

206

158

131

8.0

179

124

95.5

77.7

147

104

80

66

262

182

139

114

214

152

117

96

SIZE

HA-400

RPM

960

720

Duty

I

II

III

IV

I

II

III

IV

R
A
T
I
O

1.83

1570

1020

865

690

1225

870

673

538

2.3

1360

965

745

597

1080

765

595

475

2.81

1142

810

628

502

920

670

523

405

3.5

1000

715

552

440

818

580

450

360

3.95

909

630

502

400

710

505

390

312

4.5

810

585

455

352

630

460

352

277

5.6

652

454

346

283

535

380

292

240

6.615

528

368

280

230

433

308

236

195

8.0

390

271

207

170

320

227

174

144