Right Angle Geared Motors

STOBER servo right-angle geared motors are available as planetary right-angle geared motors and helical-bevel geared motors. These super compact synchronous servo motors are ideal for highly dynamic applications. All drive units are provided with high-quality helical gearing for unrivalled smoothness of running and backlash stability. Backlash down to ≤1.5 arcmin.

Outputs: Hollow bore, Shaft output (K), Shaft with or without key (KL), Single or double wobble free bushing
Housing Styles: Output flange (Round for K, Square for KL), Pitch circle diameter tapped holes, Foot mounting, Torque arm bracket (K only)
IP Ratings: 65 standard, 56, 66
Package Options (A package includes coating, lubrication, and output material):
- - Standard Duty – RAL-9005 black paint, Synthetic Exxon Mobil SHC 629, carbon steel output
  - Corrosion Resistant Duty – 316 stainless steel epoxy paint, Exxon Mobil SHC 630 or 600XP220 Mineral, and stainless steel output
  - Food Duty – 316 stainless steel epoxy food duty paint with anti-microbial clear coat, Exxon Mobil SHC CIBUS 220, and stainless steel output

K/KL Series

For the most versatility in mounting and outputs

The K/KL series is unparalleled when it comes to right angle options. This synchronous servo geared motor’s unique design allows you to use a variety of outputs, including shaft, hollow bore, shrink rings, and bushings. Housing options include flange, feet, and torque arm. They feature helical bevel gearing, providing smooth motion and optimal efficiency.

Outputs: Hollow bore, Shaft output (K), Shaft with or without key (KL), Single or double wobble free bushing
Housing Styles: Output flange (Round for K, Square for KL), Pitch circle diameter tapped holes, Foot mounting, Torque arm bracket (K only)
Total gear ratio range: 4 – 381
Acceleration torque: 22 – 13,200 Nm
Nominal torque: 15 – 12,000 Nm
Continuous Input Speed: Up to 4,000 RPM
Cyclic Input Speed: Up to 7,000 RPM
Torsional Stiffness: Up to 725 Nm/arcmin
Find your right fit with Stober’s Configurator

PKX_EZ Series

For smaller machine envelopes

The PKX series combines our planetary P series with a KX series input. This synchronous servo geared motor features a compact design and has superior stiffness and precision compared to a K series unit.

Total gear ratio range: 3 – 300
Acceleration torque: 11 – 3,300 Nm
Nominal torque: 15 – 2,387 Nm
Continuous Input Speed: Up to 3,500 RPM
Cyclic Input Speed: Up to 6,000 RPM
Torsional Stiffness: Up to 393 Nm/arcmin
Find your right fit with Stober’s Configurator

KS_EZ Series

For mounting flexibility with low backlash

The KS series gives the benefits of helical bevel gearing while still having low backlash. You can choose from three different output options, including shaft, flange, and hollow bore.

Total gear ratio range: 6 – 200
Acceleration torque: 90 – 400 Nm
Nominal torque: 60 – 250 Nm
Continuous Input Speed: Up to 4,500 RPM
Cyclic Input Speed: Up to 6,000 RPM
Torsional Stiffness: Up to 42 Nm/arcmin
Find your right fit with Stober’s Configurator

F _EZSeries

For mounting flexibility

The F series offers compact size and flexibility. This synchronous servo geared motor uses helical bevel gearing for optimal efficiency. Choose from a variety of housing styles and output options.

Total gear ratio range: 4.3 – 552
Acceleration torque: 78 – 1,100 Nm
Nominal torque: 69 – 1,100 Nm
Continuous Input Speed: Up to 4,000 RPM
Cyclic Input Speed: Up to 7,000 RPM
Torsional Stiffness: Up to 77.4 Nm/arcmin
Find your right fit with Stober’s Configurator

PHK_EZ Series

For high input speeds and low noise

The PHK series combines our planetary PH series with a K series input. This synchronous servo geared motor features quiet operation, higher ratios, and higher input speeds compared to a KX series unit.

Total gear ratio range: 16 – 561
Acceleration torque: 277 – 7,207 Nm
Nominal torque: 210 – 5,000 Nm
Continuous Input Speed: Up to 4,000 RPM
Cyclic Input Speed: Up to 7,000 RPM
Torsional Stiffness: Up to 1,210 Nm/arcmin
Find your right fit with Stober’s Configurator

PHKX_EZ Series

PHKX_EZ: For smaller machine envelopes

The PHKX series combines our planetary PH series with a KX series input. This synchronous servo geared motor features a compact design and has superior stiffness and precision compared to a K series unit.

Total gear ratio range: 4 – 300
Acceleration torque: 60 – 2,100 Nm
Nominal torque: 36 – 1,557 Nm
Continuous Input Speed: Up to 3,500 RPM
Cyclic Input Speed: Up to 6,000 RPM
Torsional Stiffness: Up to 489 Nm/arcmin
Find your right fit with Stober’s Configurator

PHQK_EZ Series

For the ultimate torque density and power

The PHQK series combines our planetary PHQ series with a K series input. This synchronous servo geared motor features the highest acceleration torque and torque density.

Total gear ratio range: 22 – 2,242
Acceleration torque: 316 – 43,000 Nm
Nominal torque: 264 – 21,772 Nm
Continuous Input Speed: Up to 4,000 RPM
Cyclic Input Speed: Up to 7,000 RPM
Torsional Stiffness: Up to 4,664 Nm/arcmin
Find your right fit with Stober’s Configurator

PK_EZ Series

For high input speeds and low noise

The PK series combines our planetary P series with a K series input. This synchronous servo geared motor offers quieter operation, higher input speeds, and higher ratios compared to a KX unit.

Total gear ratio range: 12 – 561
Acceleration torque: 200 – 3,105 Nm
Nominal torque: 120 – 2,100 Nm
Continuous Input Speed: Up to 4,000 RPM
Cyclic Input Speed: Up to 7,000 RPM
Torsional Stiffness: Up to 305 Nm/arcmin
Find your right fit with Stober’s Configurator

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Right Angle Geared Motors

K/KL Series

For the most versatility in mounting and outputs