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Xuzhou Wanda high qulity precision enclosed housing big slewing drive SE25 with hydraulic motor for heavy machine

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  • SE25

The slewing drive is a gearbox that can safely hold radial and axial loads, as well as transmit a torque for rotating. The rotation can be in a single axis, or in multiple axes together.

Slewing drives are made by manufacturing gearing, bearings, seals, housing, motor and other auxiliary components and assembling them into a finished gearbox.

Introduction:

By adopting slewing bearing as its core component, slewing drive can bear axial force, radial force and tilting moment simultaneously. Slewing drive is widely applied in modular trailers, all types of cranes, aerial working platform, solar tracking systems and wind power systems.

Electric and planetary gearboxes can be designed according to customer’s requirements. Slewing drive has the advantage for saving space in facilities, max load capacity in a compact design, extensive lifespan, and reduced maintenance costs.

Glossary

1) Tilting Moment Torque: Torque is the load multiplied by distance between the position of load and the center of slewing bearing. If the torque generated by load and distance is greater than the rated tilting moment torque, slewing drive will be overturned.

2) Radial load: Load vertical to the axis of slewing bearing

3) Axial load: Load parallel to the axis of slewing bearing

4) Holding torque: It is the reverse torque. When the drive is rotating reversely, and parts are not damaged,

5) The maximum torque achieved is called holding torque.

6) Self-locking: Only when loaded, the slewing drive is not able to reverse rotate and thus called self-locking.


--Customer can choose the motor according to our already designed slewing drive connect dimension.

--We can design the connect structure according to customer’s motor connect dimension.

--We can help to provide the whole parts with Hydraulic motor, DC motor, AC motor, Stepper or Servo motor.

SE.jpg

To get drawing (pdf),please clik on Model.

Model

External Dimensions

Installation Dimensions

Mounting Holes Date

Pdf.format

L1

L2

L3

H1

H2

D1

D2

D3

D4

D5

D6

n1

M1

T1

T2

n2

M2

T3

T4


mm

Inner Ring

Outer Ring

SE3-62-H-16R

190

157

80

94.5

97.5

126

100

no

no

100

115

6

M10

17

32

6

M10

17

no

SE5-62-H-16R

228

173

100.1

107.5

119

140

100

no

no

128

146

6

M10

18

33

6

M10

20

no

SE7-73-H-16R

295

185

132.7

76.5

80.8

145

120.6

98

163

203.2

237.5

10

M12

25

45

8

M12

25

42.4

SE9-61-H-25R

408

314

174.2

102

108

204

175

145

222.5

270

316

15

M16

30

65

16

M16

30

53

SE12-78-H-25R

498

324

220

106

110.5

289

259

229

308.5

358

402

19

M16

30

69.4

18

M16

30

51

SE14-85-H-25R

533

330

237.6

106

110

325

295

265

342.5

390

435.5

23

M16

30

69

18

M16

30

51

SE17-102-H-25R

578

378

282.55

121

126

406

365.1

324

425

479.4

522

20

M16

32

79

20

M16

32

55

SE21-125-H-25R

737

462

339.1

133

136.5

533

466.7

431.8

525.5

584.2

618

35

M20

40

91

36

M20

40

no

SE25-150-H-25R

863

462

401.8

133

130

628

565

512

620

675

744

35

M20

40

87

36

M20

40

no

Model

Rated Output Torque
kN.m

Tilting Moment Torque
kN.m

Axial Load
kN

Radial Load
kN

Holding Torque
kN.m

Gear Ratio

Tracking Precision

Self-locking Gears

Weight
kg

SE3

0.4

1.1

30

16.6

2

62:1

≤0.200

Yes

12 kg

SE5

0.6

3

45

22

5.5

62:1

≤0.200

Yes

20 kg

SE7

1.5

13.5

133

53

10.4

73:1

≤0.200

Yes

23 kg

SE9

6.5

33.9

338

135

38.7

61:1

≤0.200

Yes

49 kg

SE12

7.5

54.3

475

190

43

78:1

≤0.200

Yes

61 kg

SE14

8

67.8

555

222

48

85:1

≤0.200

Yes

64 kg

SE17

10

135.6

976

390

72.3

102:1

≤0.150

Yes

105 kg

SE21

15

203

1598

640

105.8

125:1

≤0.150

Yes

149 kg

SE25

18

271

2360

945

158.3

150:1

≤0.150

Yes

204 kg

Enclosed housing slewing drive, slew drive mainly apply to the relatively high condition for high requirement for dust-proof, rain-proof and aniti-corrosion occasion. Precision grade IP65.
Note

1.Different motors(AC,DC,Hydraulic) can be designed according to customer’s requirement.

2.Shaft opposite to motor can choose to be hex head or not hex head.

History

The slewing drive is a modernized take on the worm drive mechanism that dates back many centuries and was widely used during the Renaissance Era. Pappus of Alexandria (3rd century AD),

a Greek mathematician is credited for an early version of the endless screw, which would later evolve into the worm drive.This mechanism was also used by Leonardo da Vinci as a component in many

of his designs for machines.It can also be found in the notebooks of Francesco di Giorgio of Siena.Many slewing drive concepts found prominence with the emergence of larger scale construction and

engineering in the height of the Greek and Roman Empires.

Technology

Traditional worm gear with a 4-start worm.

Slewing drives function with standard worm technology, in which the worm on the horizontal shaft acts as the driver for the gear. The rotation of the horizontal screw turns a gear about an axis perpendicular to the screw axis.

This combination reduces the speed of the driven member and also multiplies its torque; increasing it proportionally as the speed decreases.The speed ratio of shafts depends upon the relation of the number of 

threads on the worm to the number of teeth in the worm wheel or gear.

As technology has improved, more slewing drives are using hourglass worm technology, in which the worm is shaped to engage more teeth in the gear.This increased tooth engagement results in greater

strength, efficiency and durability.

Performance characteristics

Because of their multiple uses, slewing drives come in a variety of model sizes, performance ranges and mounting characteristics.

The drives are well suited for applications that require both load holding and rotational torque from the same gear box.

They can also be made with dual axes of rotation, (turning axes at the same time) or with dual drives on the same axis, (two worm threads driving the same ring gear in one axis).

Materials

The specifications for drives and gears varies depending on the material the gear is composed of. However, a majority of the drives and gears commonly used are composed of steel and phosphor bronze.

According to an extensive series of tests by the Hamilton Gear & Machine Co., chill-cast nickel-phosphor bronze ranked first in resistance to wear and deformation. Number two on the list was SAE No. 65 bronze.For bronze gears a good casting should have the following minimum physical characteristics:

Applications

There are many applications in which the slewing drive can be utilized, primarily because it is perfect for applications that require both load-holding power and rotational torque strength.

Typical slewing drive applications include but are not limited to:Solar trackers,wind turbines,Man lifts,Hydraulic Machinery, Telescopic Handlers, Digger Derricks, Lifts,  Cranes, Drilling equipment, Military Equipment


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Xuzhou WanDa Slewing Bearing Co.,Ltd.
One More Choice For You!
Xuzhou WanDa Slewing Bearing Co.,Ltd.
 No.15,Huaxia Road,the 3rd Industrial Park,Tongshan District, Xuzhou, Jiangsu,China.
  +86-516-83309366     +86-516-83303986
   info@slew-bearing.com
  +86-133-37939399   +86-180 2053 7858

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