Miniature Ball Screw Linear Actuators

With NEMA 08, 11, 14, 17, and 23 Motors

Miniature Ball Screw Linear Actuators of the ready-to-ship BS Series at PBC Linear feature NEMA 08, 11, 14, 17, and 23 motor frame sizes with screw diameters of 6 mm, 8 mm, and 10 mm. Ball screws are produced and straightened in the USA from precision-ground 52100 bearing steel and manufactured to Grade 10 accuracy (±23 µm / 300 mm lead accuracy), ensuring high strength, wear resistance, and precise, repeatable performance. Each actuator integrates a precision ball screw, nut, and electric motor into a compact, factory-aligned assembly that delivers smooth, efficient linear motion.

Designed for easy integration in space-constrained systems, these actuators are available with cylindrical or flange-style ball nuts to support a range of mounting requirements.

Engineered for flexibility across diverse automation applications, they provide a balanced combination of accuracy, rigidity, and durability for consistent linear performance.

Browse and Buy Miniature Ball Screw Actuators

Performance Benefits

  • Compact Design: Cylindrical-style nuts allow for a more compact assembly compared to flange counterparts, making them ideal for space-constrained applications.
  • Versatile Compatibility: Available in 5 metric sizes (diameter x lead) with compatibility across NEMA 8, 11, 14, 17, and 23 motor sizes, catering to a broad spectrum of application requirements.
  • High Performance: Utilizes a multi-liner ball return system, ensuring smooth and efficient motion.
  • Robust Load Handling: Capable of handling static axial loads up to 1,050 N (236 lb.), suitable for various heavy-duty operations.
  • Debris Protection: Polymer wipers at each nut end prevent the ingress of debris and particulates, enhancing durability and lifespan.
  • Precision and Rigidity: Offers a standard, no preload option with backlash clearance held to 0.05 mm maximum.
  • Customization and Flexibility: Provides standard and special machined journals (fixed or floating) and end blocks, along with unassembled and assembled options, meeting diverse application needs.
  • Durability: Features polymer wipers for debris resistance and options for different materials, ensuring longevity and consistent performance.

Ball Screw Assemblies FAQ

Miniature Ball Screw Linear Actuators from PBC Linear feature NEMA 08, 11, 14, 17, and 23 motor frame sizes with screw diameters of 6 mm, 8 mm, and 10 mm. Ball screws are produced and straightened in the USA from precision-ground 52100 bearing steel and manufactured to Grade 10 accuracy (±23 µm / 300 mm lead accuracy), ensuring high strength, wear resistance, and precise, repeatable performance. Each actuator integrates a precision ball screw, nut, and electric motor into a compact, factory-aligned assembly that delivers smooth, efficient linear motion.

Miniature Ball Screw Assembly - NEMA 8 with Cylindrical Nut

Miniature Ball Screw Assembly - NEMA 8 with Cylindrical Nut

Get rolling with our miniature metric ball screw motor series. The assemblage of screw, cylindrical-style nut, and NEMA 8 motor combine to create a high-performance linear motion actuator. Cylindrical-style nuts allow for a more compact assembly design than their flange counterpart. Cylindrical-style nuts mount into specially designed housings, while a keyway in the nut mates with the housing to keep the nut from rotating within the housing.

  • 6 x 1(diameter x lead)
  • NEMA 8 motor (16 mm) is compatible with 6 mm diameter screw size
  • Utilizes a multi-liner ball return system
  • Static axial load up to 135 N (30.3 lb.) due to motor mechanical limit
  • Polymer wipers located at each end of the nut help prevent the ingress of debris and particulates
  • Standard, no preload (Standard backlash clearance held to 0.05 mm max)
  • Standard and special machined journals available (Fixed or Floating)
  • Fixed and floating end blocks available
  • Standard ball screw assemblies come assembled. Also available as unassembled.
  • Ask about custom ball screw designs
Name Diameter (mm) Lead (mm) Length (mm) Motor Shop Link
BSR0601ATXR-0150-CNS-080-NNN-N 6 1 150 NEMA 08 Shop Now
BSR0601ATXR-0250-CNS-080-NNN-N 6 1 250 NEMA 08 Shop Now
BSR0601ATXR-0150-CNS-080-NNN-N 6 2 150 NEMA 08 Shop Now
BSR0601ATXR-0250-CNS-080-NNN-N 6 2 250 NEMA 08 Shop Now

Miniature Ball Screw Assembly - NEMA 11 with Cylindrical Nut

Miniature Ball Screw Assembly - NEMA 11 with Cylindrical Nut

Get rolling with our miniature metric ball screw motor series. The assemblage of screw, cylindrical-style nut, and NEMA 11 motor combine to create a high-performance linear motion actuator. Cylindrical-style nuts allow for a more compact assembly design than their flange counterpart. Cylindrical-style nuts mount into specially designed housings, while a keyway in the nut mates with the housing to keep the nut from rotating within the housing.

  • 6 x 1 (diameter x lead)
  • NEMA 11 motor (23) is compatible with 6 mm diameter screw size
  • Utilizes a multi-liner ball return system
  • Static load rating of 135 N (30.3 lb.) due to motor mechanical limit
  • Polymer wipers located at each end of the nut help prevent the ingress of debris and particulates
  • Standard, no preload (Standard backlash clearance held to 0.05 mm max)
  • Standard and special machined journals available (Fixed or Floating)
  • Fixed and floating end blocks available
  • Standard ball screw assemblies come assembled. Also available as unassembled.
  • Ask about custom ball screw designs
Name Diameter (mm) Lead (mm) Length (mm) Motor Shop Link
BSR0601ATXR-0150-CNS-111-NNN-N 6 1 150 NEMA 11 Shop Now
BSR0601ATXR-0250-CNS-111-NNN-N 6 1 250 NEMA 11 Shop Now
BSR0602ATXR-0150-CNS-111-NNN-N 6 2 150 NEMA 11 Shop Now
BSR0602ATXR-0250-CNS-111-NNN-N 6 2 250 NEMA 11 Shop Now

Miniature Ball Screw Assembly - NEMA 14 with Cylindrical Nut

Miniature Ball Screw Assembly - NEMA 14 with Cylindrical Nut

Get rolling with our miniature metric ball screw motor series. The assemblage of screw, cylindrical-style nut, and NEMA 14 motor combine to create a high-performance linear motion actuator. Cylindrical-style nuts allow for a more compact assembly design than their flange counterpart. Cylindrical-style nuts mount into specially designed housings, while a keyway in the nut mates with the housing to keep the nut from rotating within the housing.

  • Five available sizes: 6 x 1, 8 x 1, 8 x 2, 8 x 2.5, 10 x 2 (diameter x lead)
  • NEMA 14 motor (31) is compatible with 6, 8, and 10 mm diameter screw sizes
  • Utilizes a multi-liner ball return system
  • Static load rating of 320 N (72 lb.) due to motor mechanical limit
  • Polymer wipers located at each end of the nut help prevent the ingress of debris and particulates
  • Standard, no preload (Standard backlash clearance held to 0.05 mm max)
  • Standard and special machined journals available (Fixed or Floating)
  • Fixed and floating end blocks available
  • Standard ball screw assemblies come assembled. Also available as unassembled.
  • Ask about custom ball screw designs
Name Diameter (mm) Lead (mm) Length (mm) Motor Shop Link
BSR0601ATXR-0150-CNS-140-NNN-N 6 1 150 NEMA 14 Shop Now
BSR0601ATXR-0250-CNS-140-NNN-N 6 1 250 NEMA 14 Shop Now
BSR0602ATXR-0150-CNS-140-NNN-N 6 2 150 NEMA 14 Shop Now
BSR0602ATXR-0250-CNS-140-NNN-N 6 2 250 NEMA 14 Shop Now
BSR0801ATXR-0150-CNS-140-NNN-N 8 1 150 NEMA 14 Shop Now
BSR0801ATXR-0250-CNS-140-NNN-N 8 1 250 NEMA 14 Shop Now
BSR08025TXR-0150-CNS-140-NNN-N 8 2.50 150 NEMA 14 Shop Now
BSR08025TXR-0250-CNS-140-NNN-N 8 2.50 250 NEMA 14 Shop Now
BSR0802ATXR-0150-CNS-140-NNN-N 8 2 150 NEMA 14 Shop Now
BSR0802ATXR-0250-CNS-140-NNN-N 8 2 250 NEMA 14 Shop Now
BSR1002ATXR-0200-CNS-140-NNN-N 10 2 200 NEMA 14 Shop Now
BSR1002ATXR-0500-CNS-140-NNN-N 10 2 500 NEMA 14 Shop Now

Miniature Ball Screw Assembly - NEMA 17 with Cylindrical Nut

Miniature Ball Screw Assembly - NEMA 17 with Cylindrical Nut

Get rolling with our miniature metric ball screw motor series. The assemblage of screw, cylindrical-style nut, and NEMA 17 motor combine to create a high-performance linear motion actuator. Cylindrical-style nuts allow for a more compact assembly design than their flange counterpart. Cylindrical-style nuts mount into specially designed housings, while a keyway in the nut mates with the housing to keep the nut from rotating within the housing.

  • Five available sizes: 6 x 1, 8 x 1, 8 x 2, 8 x 2.5, 10 x 2 (diameter x lead)
  • NEMA 17 single stack motor (43 mm) is compatible with 6, 8, and 10 mm diameter screw sizes (Double stack NEMA 17 motor requires a 10 mm diameter screw)
  • Utilizes a multi-liner ball return system
  • Static axial load up to 320 N (72 lb.) due to motor mechanical limits
  • Polymer wipers located at each end of the nut help prevent the ingress of debris and particulates
  • Standard, no preload (Standard backlash clearance held to 0.05 mm max)
  • Standard and special machined journals available (Fixed or Floating)
  • Fixed and floating end blocks available
  • Standard ball screw assemblies come assembled. Also available as unassembled.
  • Ask about custom ball screw designs
Name Diameter (mm) Lead (mm) Length (mm) Motor Shop Link
BSR0601ATXR-0150-CNS-171-NNN-N 6 1 150 NEMA 17 Shop Now
BSR0601ATXR-0250-CNS-171-NNN-N 6 1 250 NEMA 17 Shop Now
BSR0602ATXR-0150-CNS-171-NNN-N 6 2 150 NEMA 17 Shop Now
BSR0602ATXR-0250-CNS-171-NNN-N 6 2 250 NEMA 17 Shop Now
BSR0801ATXR-0150-CNS-171-NNN-N 8 2 150 NEMA 17 Single Stack Shop Now
BSR0801ATXR-0250-CNS-171-NNN-N 8 2 250 NEMA 17 Single Stack Shop Now
BSR08025TXR-0150-CNS-171-NNN-N 8 2.50 150 NEMA 17 Single Stack Shop Now
BSR08025TXR-0250-CNS-171-NNN-N 8 2.50 250 NEMA 17 Single Stack Shop Now
BSR0802ATXR-0150-CNS-171-NNN-N 8 2 150 NEMA 17 Single Stack Shop Now
BSR0802ATXR-0250-CNS-171-NNN-N 8 2 250 NEMA 17 Single Stack Shop Now
BSR1002ATXR-0200-CNS-171-NNN-N 10 2 200 NEMA 17 Single Stack Shop Now
BSR1002ATXR-0200-CNS-172-NNN-N 10 2 200 NEMA 17 Double Stack Shop Now
BSR1002ATXR-0500-CNS-171-NNN-N 10 2 500 NEMA 17 Single Stack Shop Now
BSR1002ATXR-0500-CNS-172-NNN-N 10 2 500 NEMA 17 Double Stack Shop Now

Miniature Ball Screw Assembly - NEMA 23 with Cylindrical Nut

Miniature Ball Screw Assembly - NEMA 23 with Cylindrical Nut

Get rolling with our miniature metric ball screw motor series. The assemblage of screw, cylindrical-style nut, and NEMA 23 motor combine to create a high-performance linear motion actuator. Cylindrical-style nuts allow for a more compact assembly design than their flange counterpart. Cylindrical-style nuts mount into specially designed housings, while a keyway in the nut mates with the housing to keep the nut from rotating within the housing.

  • 10 x 2 (diameter x lead)
  • NEMA 23 motors (43 mm) are compatible with 10 mm diameter screw (Includes NEMA 23 single stack, double stack, and Power Plus)
  • Utilizes a multi-liner ball return system
  • Static axial load to 1050 N (236 lb.) due to motor mechanical limit
  • Polymer wipers located at each end of the nut help prevent the ingress of debris and particulates
  • Standard, no preload (Standard backlash clearance held to 0.05 mm max)
  • Standard and special machined journals available (Fixed or Floating)
  • Fixed and floating end blocks available
  • Standard ball screw assemblies come assembled. Also available as unassembled.
  • Ask about custom ball screw designs
Name Diameter (mm) Lead (mm) Length (mm) Motor Shop Link
BSR1002ATXR-0200-CNS-231-NNN-N 10 2 200 NEMA 23 Single Stack Shop Now
BSR1002ATXR-0200-CNS-232-NNN-N 10 2 200 NEMA 23 Double Stack Shop Now
BSR1002ATXR-0200-CNS-23P-NNN-N 10 2 200 NEMA 23 Power Plus Shop Now
BSR1002ATXR-0500-CNS-231-NNN-N 10 2 500 NEMA 23 Single Stack Shop Now
BSR1002ATXR-0500-CNS-232-NNN-N 10 2 500 NEMA 23 Double Stack Shop Now
BSR1002ATXR-0500-CNS-23P-NNN-N 10 2 500 NEMA 23 Power Plus Shop Now

Miniature Ball Screw Assembly - NEMA 8 with Flange Nut

Miniature Ball Screw Assembly - NEMA 8 with Flange Nut

Get rolling with our miniature metric ball screw motor series. The assemblage of screw, flange-style nut, and NEMA 8 motor combine to create a high-performance linear motion actuator. Flanged ball nuts are mounted to a plate or block using bolts or screws that are secured through the provided holes. Flange-style nuts can often be easier to remove and install in an assembly, provided the mounting screws are easily accessible.

  • 6 x 1 (diameter x lead)
  • NEMA 8 motor (16 mm) is compatible with 6 mm diameter screw size
  • Utilizes a multi-liner ball return system
  • Static axial load to 135 N (30.3 lb.) due to motor mechanical limit
  • Polymer wipers located at each end of the nut help prevent the ingress of debris and particulates
  • Standard, no preload (Standard backlash clearance held to 0.05 mm max)
  • Standard and special machined journals available (Fixed or Floating)
  • Fixed and floating end blocks available
  • Standard ball screw assemblies come assembled. Also available as unassembled.
  • Ask about custom ball screw designs
Name Diameter (mm) Lead (mm) Length (mm) Motor Shop Link
BSR0601ATXR-0150-FRS-080-NNN-N 6 1 150 NEMA 08 Shop Now
BSR0601ATXR-0250-FRS-080-NNN-N 6 1 250 NEMA 08 Shop Now
BSR0602ATXR-0150-FRS-080-NNN-N 6 2 150 NEMA 08 Shop Now
BSR0602ATXR-0250-FRS-080-NNN-N 6 2 250 NEMA 08 Shop Now

Miniature Ball Screw Assembly - NEMA 11 with Flange Nut

Miniature Ball Screw Assembly - NEMA 11 with Flange Nut

Get rolling with our miniature metric ball screw motor series. The assemblage of screw, flange-style nut, and NEMA 11 motor combine to create a high-performance linear motion actuator. Flanged ball nuts are mounted to a plate or block using bolts or screws that are secured through the provided holes. Flange-style nuts can often be easier to remove and install in an assembly, provided the mounting screws are easily accessible.

  • 6 x 1 (diameter x lead)
  • NEMA 11 motor (23) is compatible with 6 mm diameter screw size
  • Utilizes a multi-liner ball return system
  • Static axial load to 135 N (30.3 lb.) due to motor mechanical limit
  • Polymer wipers located at each end of the nut help prevent the ingress of debris and particulates
  • Standard, no preload (Standard backlash clearance held to 0.05 mm max)
  • Standard and special machined journals available (Fixed or Floating)
  • Fixed and floating end blocks available
  • Standard ball screw assemblies come assembled. Also available as unassembled.
  • Ask about custom ball screw designs
Name Diameter (mm) Lead (mm) Length (mm) Motor Shop Link
BSR0601ATXR-0150-FRS-111-NNN-N 6 1 150 NEMA 11 Shop Now
BSR0601ATXR-0250-FRS-111-NNN-N 6 1 250 NEMA 11 Shop Now
BSR0602ATXR-0150-FRS-111-NNN-N 6 2 150 NEMA 11 Shop Now
BSR0602ATXR-0250-FRS-111-NNN-N 6 2 250 NEMA 11 Shop Now

Miniature Ball Screw Assembly - NEMA 14 with Flange Nut

Miniature Ball Screw Assembly - NEMA 14 with Flange Nut

Get rolling with our miniature metric ball screw motor series. The assemblage of screw, flange-style nut, and NEMA 14 motor combine to create a high-performance linear motion actuator. Flanged ball nuts are mounted to a plate or block using bolts or screws that are secured through the provided holes. Flange-style nuts can often be easier to remove and install in an assembly, provided the mounting screws are easily accessible.

  • Five available sizes: 6 x 1, 8 x 1, 8 x 2, 8 x 2.5, 10 x 2 (diameter x lead)
  • NEMA 14 motor (31) is compatible with 6, 8, and 10 mm diameter screw sizes
  • Utilizes a multi-liner ball return system
  • Static axial load to 320 N (72 lb.) due to moter mechanical limit
  • Polymer wipers located at each end of the nut help prevent the ingress of debris and particulates
  • Standard, no preload (Standard backlash clearance held to 0.05 mm max)
  • Standard and special machined journals available (Fixed or Floating)
  • Fixed and floating end blocks available
  • Standard ball screw assemblies come assembled. Also available as unassembled.
  • Ask about custom ball screw designs
Name Diameter (mm) Lead (mm) Length (mm) Motor Shop Link
BSR0601ATXR-0150-FRS-140-NNN-N 6 1 150 NEMA 14 Shop Now
BSR0601ATXR-0250-FRS-140-NNN-N 6 1 250 NEMA 14 Shop Now
BSR0602ATXR-0150-FRS-140-NNN-N 6 2 150 NEMA 14 Shop Now
BSR0602ATXR-0250-FRS-140-NNN-N 6 2 250 NEMA 14 Shop Now
BSR0801ATXR-0150-FRS-140-NNN-N 8 1 150 NEMA 14 Shop Now
BSR0801ATXR-0250-FRS-140-NNN-N 8 1 250 NEMA 14 Shop Now
BSR08025TXR-0150-FRS-140-NNN-N 8 2.50 150 NEMA 14 Shop Now
BSR08025TXR-0250-FRS-140-NNN-N 8 2.50 250 NEMA 14 Shop Now
BSR0802ATXR-0150-FRS-140-NNN-N 8 2 150 NEMA 14 Shop Now
BSR0802ATXR-0250-FRS-140-NNN-N 8 2 250 NEMA 14 Shop Now
BSR1002ATXR-0200-FRS-140-NNN-N 10 2 200 NEMA 14 Shop Now
BSR1002ATXR-0500-FRS-140-NNN-N 10 2 500 NEMA 14 Shop Now

Miniature Ball Screw Assembly - NEMA 17 with Flange Nut

Miniature Ball Screw Assembly - NEMA 17 with Flange Nut

Get rolling with our miniature metric ball screw motor series. The assemblage of screw, flange-style nut, and NEMA 17 motor combine to create a high-performance linear motion actuator. Flanged ball nuts are mounted to a plate or block using bolts or screws that are secured through the provided holes. Flange-style nuts can often be easier to remove and install in an assembly, provided the mounting screws are easily accessible.

  • Five available sizes: 6 x 1, 8 x 1, 8 x 2, 8 x 2.5, 10 x 2 (diameter x lead)
  • NEMA 17 single stack motor (43 mm) is compatible with 6, 8, and 10 mm diameter screw sizes (Double stack NEMA 17 motor requires a 10 mm diameter screw)
  • Utilizes a multi-liner ball return system
  • Static axial load to 320 N (72 lb.) due to motor mechanical limit
  • Polymer wipers located at each end of the nut help prevent the ingress of debris and particulates
  • Standard, no preload (Standard backlash clearance held to 0.05 mm max)
  • Standard and special machined journals available (Fixed or Floating)
  • Fixed and floating end blocks available
  • Standard ball screw assemblies come assembled. Also available as unassembled.
  • Ask about custom ball screw designs
Name Diameter (mm) Lead (mm) Length (mm) Motor Shop Link
BSR0601ATXR-0150-FRS-171-NNN-N 6 1 150 NEMA 17 Single Stack Shop Now
BSR0601ATXR-0250-FRS-171-NNN-N 6 1 250 NEMA 17 Single Stack Shop Now
BSR0602ATXR-0150-FRS-171-NNN-N 6 2 150 NEMA 17 Single Stack Shop Now
BSR0602ATXR-0250-FRS-171-NNN-N 6 2 250 NEMA 17 Single Stack Shop Now
BSR0801ATXR-0150-FRS-171-NNN-N 8 1 150 NEMA 17 Single Stack Shop Now
BSR0801ATXR-0250-FRS-171-NNN-N 8 1 250 NEMA 17 Single Stack Shop Now
BSR08025TXR-0150-FRS-171-NNN-N 8 2.50 150 NEMA 17 Single Stack Shop Now
BSR08025TXR-0250-FRS-171-NNN-N 8 2.50 250 NEMA 17 Single Stack Shop Now
BSR0802ATXR-0150-FRS-171-NNN-N 8 2 150 NEMA 17 Single Stack Shop Now
BSR0802ATXR-0250-FRS-171-NNN-N 8 2 250 NEMA 17 Single Stack Shop Now
BSR1002ATXR-0200-FRS-171-NNN-N 10 2 200 NEMA 17 Single Stack Shop Now
BSR1002ATXR-0200-FRS-172-NNN-N 10 2 200 NEMA 17 Double Stack Shop Now
BSR1002ATXR-0500-FRS-171-NNN-N 10 2 500 NEMA 17 Single Stack Shop Now
BSR1002ATXR-0500-FRS-172-NNN-N 10 2 500 NEMA 17 Double Stack Shop Now

Miniature Ball Screw Assembly - NEMA 23 with Flange Nut

Miniature Ball Screw Assembly - NEMA 23 with Flange Nut

Get rolling with our miniature metric ball screw motor series. The assemblage of screw, flange-style nut, and NEMA 23 motor combine to create a high-performance linear motion actuator. Flanged ball nuts are mounted to a plate or block using bolts or screws that are secured through the provided holes. Flange-style nuts can often be easier to remove and install in an assembly, provided the mounting screws are easily accessible.

  • 10 x 2 (diameter x lead)
  • NEMA 23 motors (43 mm) are compatible with 10 mm diameter screw (Includes NEMA 23 single stack, double stack, and Power Plus)
  • Utilizes a multi-liner ball return system
  • Static axial load up to 1050 N (236 lb.) due to motor mechanical limit
  • Polymer wipers located at each end of the nut help prevent the ingress of debris and particulates
  • Standard, no preload (Standard backlash clearance held to 0.05 mm max)
  • Standard and special machined journals available (Fixed or Floating)
  • Fixed and floating end blocks available
  • Standard ball screw assemblies come assembled. Also available as unassembled.
  • Ask about custom ball screw designs
Name Diameter (mm) Lead (mm) Length (mm) Motor Shop Link
BSR1002ATXR-0200-FRS-172-NNN-N 10 2 200 NEMA 23 Double Stack Shop Now
BSR1002ATXR-0200-FRS-231-NNN-N 10 2 200 NEMA 23 Single Stack Shop Now
BSR1002ATXR-0200-FRS-23P-NNN-N 10 2 200 NEMA 23 Power Plus Motor Shop Now
BSR1002ATXR-0500-FRS-172-NNN-N 10 2 500 NEMA 23 Double Stack Shop Now
BSR1002ATXR-0500-FRS-231-NNN-N 10 2 500 NEMA 23 Single Stack Shop Now
BSR1002ATXR-0500-FRS-23P-NNN-N 10 2 500 NEMA 23 Power Plus Motor Shop Now