The cost-effective alternative to the premium series

Standard series planetary gearboxes are the ideal solution for applications that do not require an extremely low level of backlash or IP65 protection. Typical applications for these gearboxes include those with high speeds and acceleration values as well as toothed belt or rack applications.

In combination with honed sun and planets, the straight-toothed and fully hardened toothing guarantee high output torque and high-precision positioning. The unique building block principle used with this series makes it possible to handle all output geometries established on the market in the area of coaxial planetary gearboxes. The standard series gearboxes are available as angular planetary gearboxes, planetary gearboxes with output flange and coaxial planetary gearboxes.

Planetary gearboxes with output shaft 8GP
Planetary gearboxes with output flange 8GF
Angular planetary gearboxes 8GA

Documentation

One-of-a-kind building block principle for planetary gearboxes

The standard gearboxes are single-stage for gear ratios i= 3, 4, 5, 7, 8 and 10 and have ≤8 - ≤15 arcmin backlash. In addition, these gearboxes are also offered in two-stage or three-stage designs. At the top of the product line, the premium series provides backlash ≤ 1 arcmin as an option paired with high output torques. B&R gearboxes from the standard series give you the possibility to choose between all output geometries established on the market in the area of coaxial planetary gearboxes.

  • This enables B&R to supply gearboxes for existing applications without having to make changes to the machine.

With the 8GP55 series, you are also able to combine the output bearings and the output geometry of the 8GP60 premium series in combination with the torsional play of the standard series for applications that do not require extremely reduced backlash. This makes it possible to handle high radial and axial forces in a cost-efficient manner.

  • In applications where the backlash of the standard series is sufficient, this offers a cost-optimized solution for implementing higher bearing forces.

Online tools

CAD configurator For motors and gearboxes. Our CAD application allows you to access 2D/3D CAD data in many different formats.

Standard planetary gearboxes – 3 types

8GP40

Planetary gearboxes
With output shaft
Series 40

8GP45

Planetary gearboxes
With output shaft
Series 45

8GP50

Planetary gearboxes
With output shaft
Series 50

8GP55

Planetary gearboxes
With output shaft
Series 55

8GP40

8GP45

8GP50

8GP55

Class

Standard

Size

040, 060, 080, 120

067, 089, 121

050, 070, 090, 120, 155

60, 80, 120

Toothing type

Straight

Protection

IP54

IP65

Backlash [arcmin]:

1-stage

2-stage

3-stage

≤7 - ≤15

≤12 - ≤19

≤14 - ≤22

≤8 - ≤12

≤12 - ≤15

≤14 - ≤18

≤8 - ≤15

≤12 - ≤19

---

≤8 - ≤12

≤12 - ≤15

---

Gear ratio:

1-stage

2-stage

3-stage

3 - 10

9 - 100

60 - 512

3 - 10

9 - 100

60 - 512

3 - 10

9 - 100

---

3 - 10

9 - 100

---

Nominal output torque [Nm]

5 - 260

15 - 260

5 - 460

15 - 260

Radial load 20,000 h [N] Refers to the center of the output shaft. Values refer to drive shaft speed n2 = 100 min-1 and application factor KA = 1 as well as S1 operation for electrical machines and T = 30°C. Depends on the diameter of the respective motor shaft.

200 - 1750

900 - 2950

800 - 5200

3200 - 6000

Axial load 20,000 h [N] Refers to the center of the output shaft. Values refer to drive shaft speed n2 = 100 min-1 and application factor KA = 1 as well as S1 operation for electrical machines and T = 30°C. Depends on the diameter of the respective motor shaft.

200 - 2500

1000 - 2500

1000 - 7000

4400 - 8000

Smooth shaft

Keyed shaft

Toothed shaft

Optionally available

Standard

---

Optionally available

Standard

---

Optionally available

Standard

---

Standard

Optionally available

---

8GF40

Planetary gearboxes
With output flange
Series 40

8GF40

Class

Standard

Size

064, 090, 110

Toothing type

Straight

Protection

IP54

Backlash [arcmin]:

1-stage

2-stage

3-stage

≤8 - ≤12

≤12 - ≤16

---

Gear ratio:

1-stage

2-stage

3-stage

3 - 10

9 - 100

---

Nominal output torque [Nm]

15 - 260

Radial load 20,000 h [N] Refers to the center of the output shaft. Values refer to drive shaft speed n2 = 100 min-1 and application factor KA = 1 as well as S1 operation for electrical machines and T = 30°C. Depends on the diameter of the respective motor shaft.

550 - 2400

Axial load 20,000 h [N] Refers to the center of the output shaft. Values refer to drive shaft speed n2 = 100 min-1 and application factor KA = 1 as well as S1 operation for electrical machines and T = 30°C. Depends on the diameter of the respective motor shaft.

1200 - 3300

Drive flange

Standard

8GA40

Angular planetary gearbox with output shaft
Series 40

8GA45

Angular planetary gearbox with output shaft
Series 45

8GA50

Angular planetary gearbox with output shaft
Series 50

8GA55

Angular planetary gearbox with output shaft
Series 55

8GA40

8GA45

8GA50

8GA55

Class

Standard

Size

040, 060, 080, 120

067, 089, 121

050, 070, 090, 120

064, 090, 110

Toothing type

Straight

Protection

IP54

Backlash [arcmin]:

1-stage

2-stage

3-stage

≤12 - ≤21

≤16 - ≤25

≤18 - ≤28

≤12- ≤14

≤16 - ≤18

≤18 - ≤20

≤12 - ≤21

≤16 - ≤25

---

≤12 - ≤17

≤14 - ≤19

---

Gear ratio:

1-stage

2-stage

3-stage

3 - 10

9 - 100

60 - 512

3 - 10

9 - 100

60 - 512

3 - 10

9 - 100

---

3 - 10

9 - 100

---

Nominal output torque [Nm]

4.5 - 260

38 - 260

4.5 - 195

14 - 260

Radial load 20,000 h [N] Refers to the center of the output shaft. Values refer to drive shaft speed n2 = 100 min-1 and application factor KA = 1 as well as S1 operation for electrical machines and T = 30°C. Depends on the diameter of the respective motor shaft.

200 - 1750

900 - 2950

800 - 2500

550 - 2400

Axial load 20,000 h [N] Refers to the center of the output shaft. Values refer to drive shaft speed n2 = 100 min-1 and application factor KA = 1 as well as S1 operation for electrical machines and T = 30°C. Depends on the diameter of the respective motor shaft.

200 - 2500

1000 - 2500

1000 - 4000

1200 - 3300

Smooth shaft

Keyed shaft

Drive flange

Optionally available

Standard

---

Optionally available

Standard

---

Optionally available

Standard

---

---

---

Standard

Direction of rotation

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