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Crankshaft Steady Rest



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Product Description

Steady Rest

With immense experience and expertise, we are able to manufacture, supply and export Steady Rest. Made of high quality raw material, these products are used for used for turning outside diameters, inside diameters, grinding, induction hardening, facing and drilling. Equipped with pneumatic and hydraulic motors, these products facilitate increased production and high centering accuracy. These products are packed in special packaging material in order to ensure their safe and secure transit. Steady Rest is available with us in different specifications in accordance to the clients' requirements.

Steady Rest are normally used efficient machining of long slender shafts. On conventional steady rest three screws 120o apart are adjusted manually. This type of centering process is not reliable and depends on operator’s skill.

FAR self centering steady rest work on an entirely different principle. Three rollers hold the work piece at point approx 120o apart. These rollers move such that they always inscribe concentric circles between them. This feature along with the internal compensating system prevents the dislocation of work piece center under changing clamping pressure. This results in high centering accuracy By mounting accordingly these steady rests can be used for turning outside diameters, inside diameters, facing, drilling, grinding, induction hardening etc.

Steady rest can be operated either hydraulically or pneumatically with the only difference being the clamping cylinder bore.

Specifications:

  • High centering accuracy.
  • Provide replaceable sealing strip and provision for compressor air connection that prevent the of coolant and dirt to the body
  • Automatic centering that reduces the cycle time and increased productivity.
  • Have provision for centralized lubrication system in all steady rest
  • Provide Actuating cylinder which have integral safety valve that ensure support of the work under sudden pressure drops.
  • Based on special cam design, which is proved in the field
  • Consist of Adjustable 3 piece chip guard for outer rollers with low reduction of clamping range
  • It can be mounted either on slant or flat bed lathes
  • made with Rigid and precisely bracket that ensure centering accuracy

This series is made for machines where the rear mounted cylinder may foul with the sheet metal enclosures or other machine enclosures To achieve this the actuating cylinder of the steady rest is mounted on the side of steady rest.

Standard Features:

  • Safety Valve
  • Provision for max opening feedback
  • 1 set swarf guard 3-piece
  • Provision for compressed air connection
  • Provision for centralized lubrication


STEADY REST TYPE


FRU-B3

FRU-B3.1

FRU-B4

FRU-B5

FRU-B6

FRU-B7

FRU-B8


A

348

356

480

6125

823

1001

1130


B

308

316

437

500

709

8975

1019


C

115

123

146

178

215

320

375


D

135

135

240

270

330

440

500


E

262

262

365

400

610/640

650

855


F

290

290

400

450

680

710

930


G

85

85

110

145

145

180

190


J

52

52

67

80

83

112

110


K

45

45

60

75

75

100

100


L

25

25

25

29

29

32

32


M

47

47

52

62

80

100

100


N

25

25

32

36

43

55

60


O

40

40

43

112.5

114

103.5

111


P2

74

74

85

85

125.8

130

130


P3

57

57

68

85

89.2

130

130


R

117.5

124

172

209

290

398

402


S

18

18

23

23

27

27

35


T

199

198

246

325

383

405

487


V

91.5

99.5

128

160

182

283.5

290


Y

19

19

19

20

27

27

27

Centering range without chip guard.

U1

12

20

30

50

125

200

230

U2

152

165

245

310

460

530

630

Centering range with 3 piece chip guard

U1

21

20

30

50

125

200

230

U2

152

165

245

310

460

530

630

Cylinder Bare

d

80

80

100

100

130

150

150

e

58

58

68

85

55

191

191

f

27

27

39

40

50

50

50

g

180

180

220

270

430

450

450

Hyd. Connection (BSP)

h

1/4

1/4

3/8

3/8

3/8

3/8

3/8

Operating pressure Min/Max

bar

8/60

8/60

8/60

8/80

8/70

8/70

8/70

Max. Clamp force/roller

daN

1000

1000

1500

2000

3000

4000

4000

Clamping press/roller at 15bar

daN

250

250

400

400

600

880

890

Centering accuracy over the whole clamping range

mm

0.04

0.04

0.05

0.06

0.05

0.08

0.08

Repeatability

mm

0.007

0.007

0.007

0.01

0.01

0.02

0.02

Max. Peripheral speed

M/min

800

8000

720

650

525

570

570

Weight Approx

kg

53

53

115

190

500

1000

1300

 Technical Specifications

Model

Holding Diameter

Rear Mounted cylinder

Side mounted cylinder

Min (mm)

Max (mm)

FRU1


04

64

FRU2

FRUB2

08

101

FRU3

FRUB3

12

152

FRU3.1

FRUB3.1

20

165

FRU3.2

FRUB3.2

50

200

FRU4

FRUB4

30

245

FRU5

FRUB5

45

310

FRU5.1

FRUB5.1

85

350

FRU6

FRUB6

125

460

FRU7

FRUB7

200

530

FRU8

FRUB8

230

630

Product Code : FRU/FRUB      Brand Name :FENWICK & RAVI

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FENWICK AND RAVI
No. 10/3, Lakshmipura Main Road, Chikkabanavara Post, Abbigere, Bengaluru - 560090, Karnataka, India
Mr. Sree Kumar Ramachandran (Manager- Exports)
Mr. Shajimon A. P. (Manager)
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