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8G

e

ff

.

ggg

hh

iii

k

l

mm

Gearbox type

Series

Size

Variants

Gear ratio

Backlash

Output shaft type

Motor mounting

Order keys only provide information about possible combinations in exceptional cases. Information about possible combinations is available in the CAD configurator (cad.br-automation.com).

Gearbox type (e)

8G

e

ff

.

ggg

hh

iii

k

l

mm

B&R gearboxes are available as angular planetary gearboxes, planetary gearboxes with a coaxial output shaft and with an output flange.

The gearbox type is specified with a letter (e) in the order key.

Gearbox type (e)

P

F

A

Planetary gearbox with output shaft

Planetary gearbox with output flange

Angular planetary gearbox

Series (ff)

8G

e

ff

.

ggg

hh

iii

k

l

mm

The gearboxes are divided into different series. The series is specified as a two-digit number (ff) in the order key.

Series (ff)

30

40, 45, 50, 55

60, 70, 75

Economy

Standard

Premium

Is a cost-effective alternative. This gearbox is cost-optimized by simplifying the clamping system between motor shaft and gearbox. The output torque and gear ratios have been reduced to a standard market level. The output shaft is only available with a key. The degree of protection corresponds to the IP54 standard.

Offers the perfect solution for most applications with an optimized price/performance ratio. The unique modular system allows a great variety with regard to gear ratio, flange, design and much more.

For applications that demand high precision. In addition to standard spur toothing, helical gearing, which runs even smoother and quieter, is also possible. The angular gearbox is also available with a hollow shaft through which cables, lines or material strands can be fed to save space. This additionally opens up new possibilities in machine design.

Size (ggg)

8G

e

ff

.

ggg

hh

iii

k

l

mm

B&R gearboxes are available in different sizes.

The different sizes are distinguished by three numbers (ggg) in the order number. The larger these numbers, the larger the flange dimensions and power data of the respective gearbox.

8GP

Gearbox series

1-stage 1)

2-stage 1)

3-stage 1)

8GP30

040, 060, 080, 120

040, 060, 080, 120

---

8GP40

040, 060, 080, 120

040, 060, 080, 120

040, 060, 080, 120

8GP45

067, 089, 121

067, 089, 121

067, 089, 121

8GP50

050, 070, 090, 120.155

050, 070, 090, 120.155

---

8GP55

060, 080, 120

060, 080, 120

---

8GP60

070, 090, 115, 142, 190

070, 090, 115, 142, 190

---

8GP70

070, 090, 115, 142, 190

070, 090, 115, 142, 190

---

8GF

Gearbox series

1-stage 1)

2-stage 1)

3-stage 1)

8GF40

064, 090, 110

064, 090, 110

---

8GF60

064, 090, 110, 140, 200

064, 090, 110, 140, 200

---

8GF70

064, 090, 110, 140, 200

064, 090, 110, 140, 200

---

8GA

Gearbox series

1-stage 1)

2-stage 1)

3-stage 1)

8GA40

040, 060, 080, 120

040, 060, 080, 120

040, 060, 080, 120

8GA45

067, 089, 121

067, 089, 121

067, 089, 121

8GA50

050, 070, 090, 120

050, 070, 090, 120

---

8GA55

064, 090, 110

064, 090, 110

---

8GA60

070, 090, 115

070, 090, 115, 142

---

8GA75

070, 090, 115.142

---

---

1)1-stage, 2-stage or 3-stage: Defined by the selected gear ratio.
Variants (hh)

8G

e

ff

.

ggg

hh

iii

k

l

mm

B&R gearboxes are available with various lubrications.

The different versions are distinguished by two characters (hh) in the order number.

Design code

Variant

Availability

--

Standard

All gearboxes

-F

Food-grade lubrication
H1-compliant
Same properties as standard lubrication

Not available for 8GP30

-L

Low-temperature lubrication
Tmin = - 40°C
Optimal operating temperature: Maximum 50°C

Not available for 8GP30 / 8GA60 / 8GA75

Gear ratio (iii)

8G

e

ff

.

ggg

hh

iii

k

l

mm

B&R gearboxes are available with different gear ratios.

The code (iii) in the order number contains the gear ratio.

8GP

Gearbox series

1-stage:

2-stage:

3-stage:

8GP30

005, 010

025

---

8GP40

003, 004, 005, 007, 008, 010

009, 012, 015, 016, 020, 025, 032, 040, 064, 100

060, 080, 120, 160, 200, 256, 320, 512

8GP45

003, 004, 005, 007, 008, 010

009, 012, 015, 016, 020, 025, 032, 040, 064, 100

060, 080, 120, 160, 200, 256, 320, 512

8GP50

8GP50-155

003, 004, 005, 007, 008, 010

004, 005, 010

009, 012, 015, 016, 020, 025, 032, 040, 064, 100

016, 020, 025, 040, 050, 100

---

---

8GP55

003, 004, 005, 007, 008, 010

009, 012, 015, 016, 020, 025, 032, 040, 064, 100

---

8GP60

003, 004, 005, 007, 008, 010

012, 015, 016, 020, 025, 032, 040, 064, 100

---

8GP70

003, 004, 005, 007, 010

012, 015, 016, 020, 025, 035, 040, 050, 070, 100

---

8GF

Gearbox series

1-stage:

2-stage:

3-stage:

8GF40

003, 004, 005, 007, 008, 010

009, 012, 015, 016, 020, 025, 032, 040, 064, 100

---

8GF60

004, 005, 007, 008, 010

016, 020, 025, 032, 040, 050, 064, 100

---

8GF70

004, 005, 007, 010

016, 020, 025, 035, 040, 050, 070, 100

---

8GA

Gearbox series

1-stage:

2-stage:

3-stage:

8GA40

003, 004, 005, 007, 008, 010

009, 012, 015, 016, 020, 025, 032, 040, 064, 100

060, 080, 120, 160, 200, 256, 320, 512

8GA45

003, 004, 005, 007, 008, 010

009, 012, 015, 016, 020, 025, 032, 040, 064, 100

060, 080, 120, 160, 200, 256, 320, 512

8GA50

003, 004, 005, 007, 008, 010

009, 012, 015, 016, 020, 025, 032, 040, 064, 100

---

8GA55

003, 004, 005, 007, 008, 010

009, 012, 015, 016, 020, 025, 032, 040, 064, 100

---

8GA60

004, 005, 008, 010

016, 020, 025, 032, 040, 064, 100

---

8GA75

004, 005, 008, 010

---

---

Backlash (k)

8G

e

ff

.

ggg

hh

iii

k

l

mm

B&R premium gearboxes are also available with reduced backlash.

Backlash is specified with a letter (k) in the order key.

Availability

S
Standard backlash

R
Reduced backlash

Economy 1)

Yes

---

Standard 1)

Yes

---

Premium 2)

Yes

Yes

1)Value "Max. backlash" is specified in the technical data.
2)Premium gearboxes: 8GP60, 8GP70 / 8GA60, 8GA75 / 8GF60, 8GF70
Output shaft type (l)

8G

e

ff

.

ggg

hh

iii

k

l

mm

The shape of the output shaft is specified with a digit in the order key (l).

Flange output shaft

Code (I)

Gearbox series

Flange output shaft

Dowel pin hole

0

8GF40

Yes

Yes

0

8GF60 / 8GF70

Yes

No

5

Yes

Yes

Smooth shaft

Code (I)

Gearbox series

Smooth shaft

1

8GA.. / 8GP..

Yes

Keyed shaft
(per DIN 6885)

Code (I)

Gearbox series

Keyed shaft (per DIN 6885)

2

8GA.. / 8GP..

Yes

Toothed shaft
(per DIN 5480)

Code (I)

Gearbox series

Toothed shaft (per DIN 5480)

4

8GP60 / 8GP70

Yes

Hollow shaft

Code (I)

Gearbox series

Hollow shaft (one side)

Hollow shaft (two sides)

6

8GA75

Yes

---

7

8GA75

---

Yes

Motor mounting (mm)

8G

e

ff

.

ggg

hh

iii

k

l

mm

B&R gearboxes perfectly match the extensive B&R portfolio of synchronous and stepper motors.

The motor mounting is specified with two characters in the order key (mm).

The code (mm) for the suitable mounting flange – for motor mounting – must be determined from the following table.

Example:
8LVA servo motor, motor size 2
1st character = V
2nd character = 2 (motor size)
Code (mm) = V2

Servo motors

1st character

2nd character

8LVA

V

1, 2 or 3 (motor size)

8LS

8LSAA

J

3

8LSA5A/8LSC5A

L

5

8LSA5B/8LSC5B

O

5

8LSA5C/8LSC5C

O

5

8LSA76/77/78 and 8LSC76/77/78

Q

7

8LSA85/8LSA86

M

8

All other 8LSA / 8LSC

L

2, 3, 4, 5, 6, 7 or 8 (motor size)

8LSN

N

4 or 5 (motor size)

8JSA

J

2, 3, 4, 5, 6 or 7 (motor size)

Stepper motors

1st character

2nd character

80MPD (flange 56 mm = NEMA 23)

P

D

80MPF (flange 60 mm = NEMA 23)

P

F

80MPH (flange 86 mm = NEMA 34)

P

H

ACOPOSmotor

1st character

2nd character

8DI3x0...

V

3

8DI4x0...

L

4

8DI5x0...

L

5

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