Fixed Center Variable Speed Pulleys (FC Series)

Speed Variation Ratio - 1:6 / 0.5 TO 50 HP

0.25 KW TO 15 KWFc drive is suitable for 0.25kw to 15kw motor ratings.The step less output speed range in case of 1440 RPM motor is from 565 to 3780 RPM Approximately.The drive is consists of two variable speed pulleys & a belt .One pulley is mechanically Adjusted and mounted on motor shaft (driver pulley) and other pulley is spring loaded Which is mounted on Gear box / machine shaft (driven pulley).The output speed variation is obtained by rotating Knob which is Fixed on Driver Pulley.


F.C. Drives Size

Speed Range

HP

FC Drive Size

Motor RPM

Min

Max

0.5 To 1.0

130

1410

620

3285

1.5 To 2.0

155

1410

600

3380

3.0 To 5.0

205

1425

565

3675

7.5 To 10.0

252

1440

570

3725

12.5 To 20.0

315

1450

570

3780



Dimension and Drive Sizes

Dimensions

d1

d2

FC Drive Size

D

L

P

Min

Max

Min

Max

130

130

95

208

14

19

14

22

155

155

110

244

19

24

19

25

205

205

130

264

24

28

19

32

252

252

160

331

28

38

24

40

315

315

196

370

38

42

28

45



Selection of Belt Length

FC Drive Size

Belt Size

Type

130

22X8

CD

mm

150

175

200

225

250

275

300

325

350

375

405

435

465

BL

mm

550

600

650

700

750

800

850

900

950

1000

1060

1120

1180

155

22X8

CD

mm

171

196

221

247

272

297

322

348

378

408

438

473

508

BL

mm

650

700

750

800

850

900

950

1000

1060

1120

1180

1250

1320

205

37X10

CD

mm

223

248

274

299

329

360

390

425

461

501

551

602

652

BL

mm

850

900

950

1000

1060

1120

1180

1250

1320

1400

1500

1600

1700

252

47X13

CD

mm

286

316

347

382

418

458

509

559

609

BL

mm

1060

1120

1180

1250

1320

1400

1500

1600

1700

315

55X16

CD

mm

351

392

443

493

544

595

695

816

947

BL

mm

1320

1400

1500

1600

1700

1800

2000

2240

2500

*CD: Center Distance *BL: Belt Length Li