Lowest torsional backlash – Highest loads
These gearboxes feature very low backlash and high torsional rigidity. They are especially well suited for use in handling systems that run with high speeds and acceleration values and applications in which the optionally available backlash of <1 arcminute is of particular significance.
The honed gearing of this series ensures the lowest level of operating noise and reduces vibration. The use of special bearings enables high radial and axial forces. These gearboxes are the right choice for both S1 and S5 operation. The premium series gearboxes are available as angular planetary gearboxes, planetary gearboxes with output flange and coaxial planetary gearboxes.
Réducteurs planétaires avec arbre en sortie : 8GP
Réducteurs planétaires avec bride en sortie : 8GF
Réducteurs planétaires angulaires 8GA
Accessoires 8GA75
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.
Additional information
Premium planetary gearboxes
Standard planetary gearboxes
8G - Order key
Downloads
Online tools
CAD configurator For motors and gearboxes. Our CAD application allows you to access 2D/3D CAD data in many different formats.
Premium planetary gearboxes – 3 types
Premium planetary gearboxes – 3 types
8GP60
Planetary gearboxes
With output shaft
Series 60
8GP70
Planetary gearboxes
With output shaft
Series 70
8GP60 | 8GP70 | |
|---|---|---|
Class | Premium | |
Size | 070, 090, 115, 142, 190 | |
Toothing type | Straight | Helical |
Protection | IP65 | |
Backlash [arcmin]: 1-stage 2-stage 3-stage | ≤1 - ≤3 ≤1 - ≤5 --- | |
Gear ratio: 1-stage 2-stage 3-stage | 3 - 10 12 - 100 --- | |
Nominal output torque [Nm] | 27 - 1800 | |
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. | 3200 - 21000 | |
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. | 4400 - 21000 | |
Smooth shaft Keyed shaft Toothed shaft | Standard Optionally available Optionally available | |
8GF60
Planetary gearboxes with output flange
Series 60
8GF70
Planetary gearboxes with output flange
Series 70
8GF60 | 8GF70 | |
|---|---|---|
Class | Premium | |
Size | 064, 090, 110, 140, 200 | |
Toothing type | Straight | Helical |
Protection | IP65 | |
Backlash [arcmin]: 1-stage 2-stage 3-stage | ≤1 - ≤3 ≤1 - ≤5 --- | |
Gear ratio: 1-stage 2-stage 3-stage | 4 - 10 16 - 100 --- | |
Nominal output torque [Nm] | 27 - 1800 | |
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. | 2400 - 33000 | |
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. | 4300 - 25000 | |
Drive flange | Standard | |
8GA60
Angular planetary gearbox with output shaft
Series 60
8GA75
Angular planetary gearbox with hollow shaft
Series 75
8GA60 | 8GA75 | |
|---|---|---|
Class | Premium | |
Size | 070, 090, 115, 142 | |
Toothing type | Spiral bevel | |
Protection | IP65 | |
Backlash [arcmin]: 1-stage 2-stage 3-stage | ≤5 ≤7 --- | ≤5 --- --- |
Gear ratio: 1-stage 2-stage 3-stage | 4 - 10 16 - 100 --- | 4 - 10 --- --- |
Nominal output torque [Nm] | 22 - 800 | |
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. | 3200 - 11400 | |
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. | 4300 - 15000 | |
Smooth shaft Keyed shaft Hollow shaft (one side) Hollow shaft (both sides) | Standard Optionally available --- --- | --- --- Standard Optionally available |