8LVB gear motors
Highest power density in the smallest installation space
The compact, lightweight and highly dynamic 8LVB servo gear motor perfectly complements the 8LV servo motor range. The 8LVB motor with direct-mount gearbox integrates all mechanical and electrical components in the smallest space possible. This makes this series optimally suited when the highest demands on dynamics and torque need to be met in the smallest spatial areas.
8LVB gear motors
Directly mounting gearboxes on the servo motors reduces weight, saves space and decreases moving mass. Equipped with either a resolver or a highly advanced EnDat 2.2 interface, these motor assemblies are ready to meet the highest demands. With their low moment of inertia, motor/gearbox combinations from the 8LVB series are designed to be highly dynamic and are characterized by excellent self-acceleration properties. As standard, these combinations come equipped with IP54 protection. By providing the highest performance in the smallest amount of space, they are among the most compact systems on the market. 8LVB motor/gearbox combinations are recommended for a wide range of applications and provide an optimum price/performance ratio in power ranges up to 1 kW.
In the 8GM series (M - gearboxes mounted directly on the motor), there is the option of choosing between standard gearbox series 8GM40 and 8GM50. The 8GM50 series is optimized to handle increased radial and axial forces. Gearboxes in the standard series are single-stage for gear ratios i = 3, 4, 5, 8 and 10 with a backlash <8–15 arcminutes. In addition, these gearboxes are also available with a two-stage design with an optional smooth shaft.
- The integrated design reduces weight, saves space and decreases moving mass
- Highly dynamic drives with low moment of inertia
- High torque in the smallest amount of space possible
- High degree of positioning precision due to the high-resolution absolute encoder system and low level of backlash
- Maximum power density
- Complete integration in the B&R system environment
- Power range up to 1 kW for 80 VDC and 320 VDC DC bus voltage
- Multiturn encoder with the same length
- Robust industrial connectors with optimum EMC shielding
- Fast and easy locking of the connector
The innovative connection system developed for this compact servo motor series only requires a small amount of space for cabling while still providing maximum flexibility. The 300° range of rotation allows connections to be made in an extremely flexible manner.
Fast and tool-free mounting with self-locking quick-release (springtec®) ensures simple and secure connections for power and encoder cables.
Together with this universal connector system, the new 8LVB series offers IP54 protection for applications in a wide range of automation areas. This ensures secure connections even in adverse conditions.
The metal housing of the connector provides optimal EMC shielding for the highest level of operational safety.
Order code (nn) for angled male connector: W
- SpringTEC® Schnellverschluss
- Stufenlose 300° - Verdrehbarkeit
- automatische Verriegelung
- Verkabelung ohne Werkzeug
- Kompakte Bauweise
- EMV - Schirmung
- Robustes Metallgehäuse
B&R offers a choice between a resolver for standard applications and absolute encoder with EnDat 2.2 interface.
The ultra compact encoder with a length of less than 13 mm is multi-turn capable and has a battery backup system.
With 262,144 (218) position values per revolution and 65,536 (216) distinct revolutions, the encoder provides excellent resolution in an extremely compact design.
Options for motor-gearbox combinations
Embedded parameter chip
All relevant mechanical and electrical information and data is stored in the EnDat encoder used for 8JSB /8JSQ hygiene motors. This means that the user doesn't have to configure settings on the servo drive. As soon as the encoder is connected to the servo drive and power is applied to the electronics, the motor is automatically identified. The servo drive then reads current limits and current control parameters required for optimal control of the motor from the embedded parameter chip. The only things that the user has to optimize are the speed and position controllers. The integrated commissioning environment in B&R Automation StudioTM provides all necessary support.
In addition to assistance during commissioning, routine service work is also simplified, and motors can be exchanged without having to take extra time to set parameters.
Sizes and lengths
The 8LVB motor/gearbox combination is available in three different sizes (1, 2, 3). They have different dimensions and power ratings. These different sizes are indicated by a number represented by (c) in the model number. The larger the number, the larger the flange dimensions and power rating for the respective motor.
Cooling / construction typeAvailable sizes123BYesYesYes
The motor integrated in the 8LVB motor/gearbox combination is available in 2 different lengths. They have different power ratings with identical flange dimensions. The various lengths are differentiated by a number (d) in the order key.
Overview of available motor-gearbox combinations and gear ratios
8GM408GM50Gearbox size406080507090Motor8LVB13 n = 1500 rpmYes--Yes--8LVB13 n = 1500 rpm with brakeYes--Yes--8LVB13 n = 3000 rpmYes--Yes--8LVB13 n = 3000 rpm with brakeYes--Yes--8LVB22 n = 1500 rpm-Yes--Yes-8LVB22 n = 1500 rpm with brake-Yes--Yes-8LVB22 n = 3000 rpm-Yes--Yes-8LVB22 n = 3000 rpm with brake-Yes--Yes-8LVB23 n = 1500 rpm-Yes--Yes-8LVB23 n = 1500 rpm with brake-Yes--Yes-8LVB23 n = 3000 rpm-Yes--Yes-8LVB23 n = 3000 rpm with brake-Yes--Yes-8LVB33 n = 1500 rpm--Yes--Yes8LVB33 n = 1500 rpm with brake--Yes--Yes8LVB33 n = 2100 rpm--Yes--Yes8LVB33 n = 2100 rpm with brake--Yes--Yes
Planetengetriebe für Motordirektanbau Bestellcode (iii)Getriebeserie1 stufig2 stufig8GM40003, 004, 005, 008, 010009, 012, 015, 016, 020, 025, 032, 040, 064, 1008GM50003, 004, 005, 008, 010009, 012, 015, 016, 020, 025, 032, 040, 064, 100