TransRex Drive
  • RV High-Precision Planetary Gear Reducer Compact Servo Motor Cycloidal Pinwheel Reducer Robotics
  • RV High-Precision Planetary Gear Reducer Compact Servo Motor Cycloidal Pinwheel Reducer Robotics
  • RV High-Precision Planetary Gear Reducer Compact Servo Motor Cycloidal Pinwheel Reducer Robotics
  • RV High-Precision Planetary Gear Reducer Compact Servo Motor Cycloidal Pinwheel Reducer Robotics
  • RV High-Precision Planetary Gear Reducer Compact Servo Motor Cycloidal Pinwheel Reducer Robotics
  • RV High-Precision Planetary Gear Reducer Compact Servo Motor Cycloidal Pinwheel Reducer Robotics
  • RV High-Precision Planetary Gear Reducer Compact Servo Motor Cycloidal Pinwheel Reducer Robotics
  • RV High-Precision Planetary Gear Reducer Compact Servo Motor Cycloidal Pinwheel Reducer Robotics
  • RV High-Precision Planetary Gear Reducer Compact Servo Motor Cycloidal Pinwheel Reducer Robotics
  • RV High-Precision Planetary Gear Reducer Compact Servo Motor Cycloidal Pinwheel Reducer Robotics

RV High-Precision Planetary Gear Reducer Compact Servo Motor Cycloidal Pinwheel Reducer Robotics

This TransRex Planetary Cycloidal Precision Reducer serves as a core transmission component engineered for high-end automation applications.

Specifications：
20E Bare Unit Gear Ratios 81/105/121/141/161 Non-Flange
40E Bare Unit Gear Ratios 81/105/121/153 Non-Flange
80E Bare Unit Gear Ratios: 81/101/121/153 No Flange
110E Bare Unit Gear Ratios: 81/111/161/175.28 No Flange
160E Bare Machine Gear Ratios: 81/101/129/145/171 No Flange
320E Bare Machine Gear Ratios: 81/101/118.5/129/141/153/171/185/201 No Flange
450E Bare Unit Gear Ratios: 81/101/129/153/171/192.4/201/210.23/257.84 No Flange
10C Bare Unit Gear Ratio: 27 No Flange
27C Bare Unit Ratio 36.57 No Flange
50C Bare Unit Ratio 32.54 No Flange
100C Bare Unit Ratio 36.75 No Flange
120C Bare Machine Speed Ratio 36.75 No Flange
200C Bare Machine Speed Ratio 34.86 No Flange
320CA Bare Machine Speed Ratio 210 No Flange
320C Bare Machine Speed Ratio 35.61 No Flange
400C Bare Machine Speed Ratio 35.61 No Flange
500C Bare Machine Speed Ratio 37.34 No Flange
700F Bare Unit Speed Ratio 200.33/250.6 No Flange
20E/40E/80E Flange Integrated Unit
20E Bare Unit No Flange
20E Flange Integrated Unit
40E Bare Unit Non-Flanged
40E Flanged Integrated Unit
80E Bare Unit Non-Flanged
80E Flanged Integrated Unit

USD 260-4596

output value: Monthly Output3000

contact shop

Product Description

This TransRex Planetary Cycloidal Precision Reducer serves as a core transmission component engineered for high-end automation applications. Featuring a planetary cycloidal meshing structure, it delivers high torque density, ultra-low backlash, and micron-level positioning accuracy. Its integrated precision gear set undergoes specialized machining to generate robust power output within compact spaces, ensuring stable and reliable long-term operation. It provides critical support for achieving high-precision motion in industrial robots, CNC machine tools, and similar equipment.

High-Precision RV Reducer

High Rigidity Heavy Load Capacity

(Planetary Gear + Cycloidal Gear)

Torsional Stiffness：47–3430 N·m/arcmin

Allowable Torque：686–34300 N·m

Functional Features






High Precision Low Backlash

Backlash 1 arc minute Smooth gear transmission Minimal clearance







High Rigidity High Torque

Cycloid gear and pinion multi-tooth meshing

Torsional stiffness 47-3430 N·m/arcmin







High Load Capacity Overload Tolerance

Integrated angular contact ball bearing structure with large contact area for high load capacity

Allowable torque: 686-34300Nm







Acceleration/deceleration control with outstanding performance

2-stage reduction with planetary carrier support, achieving up to 5 times rated load







Compact structure

Lightweight design, weighing only 4.7-66.4kg








Flexible design for space efficiency

Hollow structure with internal cable routing saves space



Different Product Series

BX-E Series












 





  20E           40E               80E                 110F                   160E                     320E                       320E3                        450E


BX-C Series

















 10C             27C          50C              100C               120C                  200C                   320C                  320CA                    500C


Detail Display

High Precision

As low as 1 arc minute gear backlash

High Rigidity

High hardness, torsional stiffness

47-3430 N·m/arcmin

Greater Load Capacity

Bearing rolling contact, dual-column support

Eccentric Shaft

Supports gear torque transmission

High Quality

Imported oil seals with enhanced 

high-temperature resistance

E Series Solid Structure

Customization available

C Series Hollow Structure

Customization available


Product parameters

BX-E Series Reducer Specifications 

Output Speed (rpm)

5

10

15

20

25

30

40

Model

Speed ratio

Output Torque

Input Power

Output Torque

Input Power

Output Torque

Input Power

Output Torque

Input Power

Output

  Torque

Input Power

Output Torque

Input Power

Output Torque

Input Power

Planetary carrier rotation (R)

Bevel gear carrier rotation

Nm
(kgf-m)

kW

Nm
(kgf-m)

kW

Nm
(kgf-m)

kW

Nm
(kgf-m)

kW

Nm
(kgf-m)

kW

Nm
(kgf-m)

kW

Nm
(kgf-m)

kW

BX-20E

57

56

231
(23.6)

0.16

188
(19.2)

0.26

167
(17.0)

0.35

153
(15.6)

0.43

143
(14.6)

0.50

135
(13.8)

0.57

124
(12.7)

0.70

81

80

105

104

121

120

141

140

161

160

BX-40E

57

56

572
(58.4)

0.40

465
(47.4)

0.65

412
(42.0)

0.86

377
(38.5)

1.05

353
(36.0)

1.23

334
(34.1)

1.40

307
(31.3)

1.71

81

80

105

104

121

120

153

152

BX-80E

57

56

1088
(111)

0.76

885
(90.3)

1.24

784
(80.0)

1.64

719
(73.4)

2.01

672
(68.6)

2.35

637
(65)

2.67

584
(59.6)

3.26

81

80

101

100

121

120

153

152

BX-110E

81

80

1499
(153)

1.05

1215
(124)

1.70

1078
(110)

2.26

990
(101)

2.76

925
(94.4)

3.23

875
(89.3)

3.67

804
(82.0)

4.49

111

110

161

160

175.28

174.28

BX-160E

81

80

2176
(222)

1.52

1774
(181)

2.48

1568
(160)

3.28

1441
(147)

4.02

1343
(137)

4.69

1274
(130)

5.34

--

101

100

129

128

145

144

171

170

BX-320E

81

80

4361
(445)

3.04

3538
(361)

4.94

3136
(320)

6.57

2881
(294)

8.05

2695
(275)

9.41

2548
(260)

10.7

--

101

100

118.5

117.5

129

128

141

140

153

152

171

170

185

184

201

200

BX-450E

81

80

6135
(626)

4.28

4978
(508)

6.95

4410
(450)

9.24

4047
(413)

11.3

3783
(386)

13.2

----

101

100

129

128

153

152

171

170

192.4

191.4

201

200

210.23

209.23

257.84

256.84 


Model

50

60

Torque Rigidity Representative Value
Nm/arc.min.
(kgf-m/
arc.min.)

Allowable Torque
Nm
(kgf-m)

Instantaneous Maximum Allowable Torque
Nm
kgf-m)

Allowable Maximum Output Speed
r/min

Allowable Torque at Start/Stop
Nm
(kgf-m)

Instantaneous Maximum Allowable Torque
Nm
(kgf-m)

No-Load
MAX.
Arc.min

Representative Value of Torsional Stiffness
Nm/arc.min.
(kgf-m/
Arc.min.)

Inertia Torque 1
(1=GD/4)
Input Shaft Equivalent Value
Kg-m²

Weight

kg

Output Torque

Input Power

Output Torque

Input Power

Nm
(kgf-m)

kW

Nm
(kgf-m)

kW

BX-20E

115
(11.8)

0.81

110
(11.2)

0.92

372
(38)

882
(90)

1764
(180)

75

412
(42)

833
(85)

1'

49
(5)

9.66×10⁴
6.07×10⁴
4.32×10⁴
3.56×10⁴
2.88×10⁴
2.39×10⁴

4.7

BX-40E

287
(29.3)

2.00

271
(27.7)

2.27

931
(95)

1666
(170)

3332
(340)

70

1029
(105)

2058
(210)

1'

108
(11)

3.25×10³
2.20×10³
1.63×10⁵
1.37×10³
1.01×10³

9.3

BX-80E

546
(55.7)

3.81

517
(52.8)

4.33

1176
(120)

2156
(220)

4312
(440)

70

1960
(200)

3920
(400)

1'

196
(20)

8.16×10³
6.00×10³
4.82×10³
3.96×10³
2.98×10³

13.1

BX-110E

----

1470
(150)

2940
(300)

5880
(600)

50

2695
(275)

5390
(550)

1'

294
(30)

9.88×10³
6.96×10³
4.36×10³
3.89×10³

17.4

BX-160E

----

2940
(300)

3920
(400)

7840
(800)

45

3920
(400)

7840
(800)

1

392
(40)

1.77×10
1.40×10
1.06×10
0.87×10
0.74×10

26.4

BX-320E

----

4900
(500)

7056
(720)

14112
(1440)

35

7840
(800)

15680
(1600)

1'

980
(100)

4.83×10⁴
3.79×10⁴
3.15×10
2.84×10
2.54×10
2.36×10
1.97×10
1.77×10
1.68×10*

44.3

BX-450E

----

7448
(760)

8820
(900)

17640
(1380)

25

11025
(1125)

22050
(2250)

1

1176
(120)

8.75×10*
6.91×10
5.20×10
4.12×10
3.61×10
3.07×10*
2.58×10*
2.03×10

6.4 


BX-C Series Reducer Specifications 

Output Speed

 (rpm)

5

10

15

20

25

30

40

50

Model

Speed Ratio of the Reducer Unit
(R,)

Output Torque

Input Power

Output Torque

Input Power

Output Torque

Input Power

Output Torque

Input Power

Output

Torque

Input Power

Output Torque

Input Power

Output Torque

Input Power

Output Torque

Input Power

Nm
(kgf-m)

kW

Nm
(kgf-m)

kW

Nm
(kgf-m)

kW

Nm
(kgf-m)

kW

Nm
(kgf-m)

kW

Nm
(kgf-m)

kW

Nm
(kgf-m)

kW

Nm
(kgf-m)

kW

BX10C

27

136
(13.9)

0.09

111
(11.3)

0.16

98
(10)

0.21

90
(9.17)

0.25

84
(8.58)

0.29

80
(8.12)

0.34

73
(7.45)

0.41

68
(6.97)

0.47

BX27C

36.57
(1390/38)

368
(37.5)

0.26

299
(30.5)

0.42

265
  (27)

0.55

243
(24.8)

0.68

227
(23.2)

0.79

215
(21.9)

0.90

197
(20.1)

1.10

184
(18.8)

1.29

BX50C

32.54
(1985/61)

681
(69.5)

0.48

554
(56.5)

0.77

490
(50)

1.03

450
(45.9)

1.26

420
(42.9)

1.47

398
(40.6)

1.67

366
(37.3)

2.04

341
(34.8)

2.38

BX100C

36.75

1362
(139)

0.95

1107
(113)

1.55

980
(100)

2.05

899
(91.7)

2.51

841
(85.8)

2.94

796
(81.2)

3.33

730
(74.5)

4.08

--

BX120C

36.75

1362
(139)

0.95

1107
(113)

1.55

980
(100)

2.05

899
(91.7)

2.51

841
(85.8)

2.94

796
(81.2)

3.33

730
(74.5)

4.08

--

BX200C

34.86
(1499/43)

2724
(278)

1.90

2215
(226)

3.09

1960
(200)

4.11

1803
(184)

5.04

1686
(172)

5.88

1597
(163)

6.69

----

BX320C

35.61
(2778/78)

4361
(445)

3.04

3538
(361)

4.94

3136
(320)

6.57

2881
(294)

8.05

2690
(275)

9.41

------

BX320CA

210

4361
(445)

3.04

3538
(361)

4.94

3136
(320)

6.57

2881
(294)

8.05

2690
(275)

9.41

------

BX400C

35.61
(2778/78)

5449
(556)

3.79

4430
(452)

6.17

3920
(400)

8.19

3598
(367.2)

10.02

--------

BX500C

37.34
(3099/83)

6811
(695)

4.75

5537
(56.5)

7.73

4900
(500)

10.26

4498
(459)

12.56

--------


Model

60

Torque
Rigidity
Representative
Value
Nm/arc.min.
(kgf-m/
arc.min.)

Allowable
Torque
Nm
(kgf-m)

Instantaneous
Maximum
Allowable
Torque
Nm
kgf-m)

Allowable
Maximum
Output
Speed
r/min

Allowable
Torque
at Start/Stop
Nm
(kgf-m)

Instantaneous
Maximum
Allowable
Torque
Nm
(kgf-m)

No-Load
MAX.
Arc.min

Representative
 Value of
Torsional
Stiffness
Nm/arc.min.
(kgf-m/
Arc.min.)

Inertia
moment 1
(1=GD³/4)
Reducer unit
Kg-m²

Inertia
moment 1
(I=GD'/4)
Standard
center gear
kg·m²

Weight
Kg

Output
Torque

Input
Power

Nm
(kgf-m)

kW

BX10C

65
(6.60)

0.54

421
(43)

686
(70)

1372
 (140)

80

245
(25)

490
(50)

1'

47
(4.8)

1.38×10³

0.678×10

4.6

BX27C

174
(17.8)

1.46

1068
(109)

980
(100)

1960
 (200)

60

662
(67.5)

1323
(135)

1'

147
(15)

0.550×10

0.563×10

8.5

BX50C

--

1960
(200)

1764
(180)

3528
 (360)

50

1225
  (125)

1960
(200)

1'

255
(26)

1.82×10⁴

0.363×10

14.6

8X100C

--

2813
(287)

2450
(250)

4900
 (500)

40

2450
  (250)

3430
(350)

1

510
(52)

0.475×10

0.953×10

19.5

BX120C

--

2813
(287)

2450
(250)

4900
 (500)

40

2450
  (250)

1960
(500)

1'

510
(52)

0.475×10

0.953×10²

19.5

BX200C

--

9800
(1000)

8820
(900)

17640
 (1800)

30

4900
  (500)

9800
(1000)

1

980
(100)

1.39×10

1.94×10²

55.6

8X320C

--

12740
(1300)

20580
(2100)

39200
(4000)

25

7840
  (800)

15680
(1600)

1'

1960
(200)

0.518×10

0.405×10

79.5

BX320CA

--

12740
(1300)

20580
(2100)

39200
(4000)

25

7840
  (800)

15680
(1600)

1

1960
(200)

0.459×10³

0.636×10¹

92.1

8X400C

--

17640
(180)

26460
(2700)

52920
(5400)

20

9800
(1000)

19600
(2000)

1'

2548
(260)

0.541×10

0.407×10

106

BX500C

--

24500
(2500)

34300
(3500)

78400
(8000)

20

12250
(1250)

24500
(2500)

1

3430
(350)

0.996×10

1.014×10'

154 


Application

Industrial Robotics Applications

Within industrial robot joint drive systems, this reducer's ultra-low backlash ensures seamless transition between high-speed motion and precise positioning. Its high torque output effortlessly supports heavy-duty end effectors. Stable transmission performance guarantees consistency and reliability in complex processes like welding, material handling, and assembly, enabling efficient and flexible production lines.

CNC Machine Tool Applications

Providing core power support for CNC machine tool spindles and feed systems, the planetary cycloidal structure's high rigidity effectively suppresses cutting vibrations. Precise gear ratio control achieves micron-level tool feed accuracy, significantly enhancing workpiece surface finish and dimensional precision to meet modern high-speed, high-precision machining demands.

Medical Equipment Applications

In surgical robots, imaging positioning devices, and other medical scenarios, the gear reducer's quiet operation and high precision meet stringent medical environment requirements. Its compact size allows flexible integration into equipment joints or drive modules, ensuring precise, controllable surgical movements and patient safety. This enables higher levels of automation and intelligence in medical equipment.

Precision Mechanical Automation Applications

Within precision automation equipment like electronic manufacturing and optical inspection systems, this reducer drives mechanisms such as precision slides and indexing tables to achieve nanometer-level positioning through its high responsiveness and low backlash error. Its stable performance ensures consistency during prolonged continuous operation on production lines, delivering reliable transmission solutions for high-end manufacturing.

High End Equipment

















                   High-Precision                                      CNC Indexable Insert                                Dual-Station High-Efficiency 

             Vertical Machining Center                       Peripheral Grinding Machine                             Gear Grinding Machine











  




 





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                 Zeiss MM Measuring Machine                    GMC350 Gear Measuring Center                          Horizontal CNC Lathe

                                                                                                                                                  


                             

                                                  




Certificates

Technical Team

Supplier Information

Company：eriksen

Email：transrex@ttbridge.com

Tel：13460222030

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