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Low backlash Planetary Precision gear box for stepper motor servo motor nema

DL Series Precision Planetary Gearbox

Varitron DL Inline Precision planetary gearbox promise dynamic performances with low backlash. An impressive assortment of servo grade planetary gearbox for our inline series. Providing the ultimate flexibility for our customers.

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Features

Varitron Planetary Gearbox Inside view

 

- High Precision Gear -

 The planetary gear and sun gear are manufactured from high quality Ni-Cr-Mo alloy steel. Precision machined and carburized, then for precision tooth grinding or skiving assures gears high precision.

 

- Modular Deisgn of Motor Connection Plate -

The special modular design of motor connection plate is suitable for any brand and any type of servomotor. Manufactured from aluminum alloy, its surface is anodized treated for upgrading environmental-resistant and corrosion-resistant capability.

 

- Single-piece Gearbox & Advanced Surface Treatment -

The gearbox and internal gear ring are single price design and constructed, which is manufactured from Cr-Mo alloy steel, and tempered for high torque output. Gearbox surface is anti-corrosive treated for upgrading environmental resistant and corrosionresistant capability.

 

- Modular Input Shaft -

Modular input shaft design and motor shaft are coupled through a dynamic balanced collar clamping mechanism to ensure connection concentricity and zero slip power transmission at high speed.

 

- Integrated Planetary Arm Bracket -

 

The planetary arm bracket and the output shaft are single piece design constructed to increase torsional rigidity and accuracy. The entire structure is one-time machined for controlling accuracy in the specified tolerance.

 

   

Model Number

DL Series High Precision Planetary Gearbox

Speed Reduction Method

Planetary gear mechanism with designed tooth profile

Efficiency

95% per stage gearbox

Shock Load

300% as there are only compressive forces rather than shear forces on the tooth

Gear box Mounting

Flange Mounting, Foot mounting parts sold separately

Reduction Ratio

Up to 1:10 per stage

1:1000 on 3-stages

Capacity Range

100Watt to 11,000Watt

Enclosure

Totally enclosed IP55

Power Source

Servo motor, stepper motor

Backlash

Single Stage: below 5arcmin

Double Stages: Below 8arcmin

Reduction Gearbox

Lubrication Method

High viscosity anti-separation grease

Method of Coupling with Driven Machine

Coupling, gears, chain sprocket or belt

Standard

CE, UL, CSA, ISO 9001, ISO14001

Warranty

1 Year Limited Warranty

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Technical

Information

 

Specification 

Ratio 

(Stages)

DL060

DL090

DL120

DL150

Instantaneous Max. Output Torque

T2B (Nm)

3/9/10/12/21/30

120

420

780

1428

4/15/16/20/25/40

153

504

918

1680

7/28/35/70/100

132

498

855

1560

5/50

141

465

876

1608

Defined Output Torque

T2N (Nm)

3/9/10/12/21/30

40

140

260

476

4/15/16/20/25/40

51

168

306

560

7/28/35/70/100

44

166

285

520

5/50

47

155

292

536

Reduction Ratio 

L1: 1 Stage 單段

3 / 4 / 5 / 7 / 10

L2: 2 Stage 雙段

9 / 12 / 15 / 16 / 20 / 21 / 25 / 28 / 30 / 35 / 40 / 49 / 50 / 70

L3: 3 Stage 三段

100 / 200 / 250

Defined Input Rotational Speed

n1N (rpm)

3/4/5 (L1)

3300

2600

2300

2200

7/10 (L1)

4000

2900

2700

2700

12~40 (L2)

4400

3200

3000

3000

50 (L2)

4800

3600

3300

3200

70~100 (L2)

5500

4200

3900

3500

Backlash

(arcmin)

3~10 (L1)

≤10

≤10

≤10

≤10

12~100 (L2)

≤12

≤12

≤12

≤12

Torsional Rigidity (Nm/arcmin)

3~100

(L1,L2)

7

11

27

48

Allowable Radial Force

 F2rB2 (N)

3~100

(L1, L2)

750

5400

7500

14000

Allowable Axial Force

 F2aB2(N)

3~100

(L1, L2)

545

4500

6450

12000

Full Load Efficiency

 %

3~10 (L1)

≥97

12~100 (L2)

≥94

Service Life  Lh2 (hrs)

3~100 (L1, L2)

20000

Weight  (kgs)

3~10 (L1)

1.1

3.5

6

16

12~100 (L2)

1.6

4.5

7.2

20

Noise  (db)

 

65

64

64

64

Temperature °C

 

-15°C  ~ +90°C

Protection Rank 

 

IP64 / IP65 (IP66 by request 訂購製作)

Lubricating Oil 

 

Synthetic Lubricant 合成潤滑油 ISO VG220

Moment Of Inertia  J1 (kg.cm)

Stages

Ratio

 

L1

 

3

0.31

0.4

5.9

10.5

4

0.3

0.6

5.09

9.1

5

0.29

0.59

4.93

8.85

7

0.28

0.58

4.83

8.85

10

0.27

0.57

4.81

8.46

L2

9

0.29

0.56

4.91

9.02

12

0.3

0.58

5.1

9.01

16

0.3

0.6

5.09

9.01

20

0.3

0.6

5.07

9.02

25

0.29

0.59

4.91

8.83

28

0.3

0.59

5.07

9.01

35

0.3

0.58

4.91

8.82

40

0.27

0.56

4.8

8.45

50

0.27

0.56

4.8

8.45

70

0.27

0.56

4.8

8.45

100

0.27

0.56

4.8

8.45

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Designation

j

Model

DA: Helical Gear High Precision Planetary Gearbox

DM:Precision Planetary Gearbox

DML:Precision Round Body Planetary Gearbox

DF:Precision Flange Type Planetary Gearbox

DH:Standard Precision Planetary Gearbox

DL:Standard Precision Round Body Planetary Gearbox

DN:High R-A Load Standard Precision Planetary Gearbox

RAM-S:Precision Shaft Output Spiral Bevel Gearbox

RAM-SS:Precision Double Shaft Spiral Bevel Gearbox

RAM-H:Precision Hollow Shaft Spiral Bevel Gearbox

RAM-D: Precision Clamping Shaft Spiral Bevel Gearbox

RAM-F: Precision Flange Spiral Bevel Gearbox

RAH-S: Standard Precision Shaft Output Spiral Bevel Gearbox

RAH-SS:Standard Precision Double Shaft Spiral Bevel Gearbox

RAH-H:Standard Precision Hollow Shaft Spiral Bevel Gearbox

RAH-D:Standard Precision Clamping Shaft Spiral Bevel Gearbox

RAH-F: Standard PrecisionFlange Spiral Bevel Gearbox

 

k

Frame Size

042,060,070,080,090,120,150,180,220

Refer to Gearbox Quick Selection Table Page 89. 

l

Stage

L1, L2, L3

m

Ratio

L1: 3 / 4 / 5 / 7 / 10

L2: 9 / 12 / 15 / 16 / 20 / 21 / 25 / 28 / 30 / 40 / 49 / 50 / 70

L3: 36 / 45 / 60 / 75 / 80 / 150 / 200 / 300 / 400 / 500 / 700 / 1000

n

Motor Shaft Diameter

(S)

Customized according to customer requirement. 

o

Motor Pilot Diameter

(B)

Customized according to customer requirement. 

p

Motor Guide Depth

(P)

Customized according to customer requirement. 

q

Installing Screw P.C.D

(M)

Customized according to customer requirement. 

r

Installing Screw Size

(A)

Customized according to customer requirement. 

 


s

 

Motor Shaft Length

(R)

Customized according to customer requirement. 

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Dimensions

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Applications

 

Application of Planetary Gearbox

 

Planetary Gearboxes are used on high precision motion control application that require a high torque, high torsional stiffness and low backlash the specifics of which will vary by application.

 

Planetary gearboxes increase the torque by the stage of reduction ratio, making it possible to run the motor at a higher, more efficient speed.  The inertia reflected back to the motor is reduced for increased stability.  Using a planetary gearbox allow machine builders using a smaller, less expensive motion control package.

 

The application of planetary gearboxes covers the entire range of automation.  It's frequently found in "pick and place" systems, loading and unloading gantry robots, driving rotary and linear actuators, in packaging machineries, positioning tables in medical equipment. 

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Downloads

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Related

Products

High Precision

DA

Precision

 

DM DF RAM-S RAM-SS
RAM-H RAM-D RAM-F  
 

 

Standard

 

DH DL DN RAH-S
RAH-SS RAH-H RAH-D RAH-F
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