![[THK] — BNS-A Ball Screw / Spline Combined Unit (Compact, Linear + Rotary, φ8~40)](https://img.prosourcemro.com/2026/05/001-874-1024x814.png)
Ball Screws
THK
[THK] — BNS-A Ball Screw / Spline Combined Unit (Compact, Linear + Rotary, φ8~40)
Family ID: THK-BNS-A
THK BNS-A Series Ball Screw / Ball Spline Combined Unit (Compact Type). Ball screw and ball spline grooves on a single shaft — enables three motion modes (rotation, linear, and helical) with one axis. Integrated support bearing on nut OD. Shaft diameter range φ8~40mm. Custom shaft length available.
21 product codes available in this family
Product Codes & Specifications
| Product Code | Description | Brand | Spec | ||
|---|---|---|---|---|---|
| BNS0812A+C3 | THK BNS0812A, φ8 Lead8, C3 | THK | Shaft Diameter: φ8mm | Lead: 8mm | Ca: 1.1kN | C0a: 1.8kN | Flange D1: 44mm | Nut Length L1: 28.5mm | Grade: C3 | Shaft Length: Custom order | Type: Ball Screw + Ball Spline Combined (BNS-A) | ||
| BNS0812A+C5 | THK BNS0812A, φ8 Lead8, C5 | THK | Shaft Diameter: φ8mm | Lead: 8mm | Ca: 1.1kN | C0a: 1.8kN | Flange D1: 44mm | Nut Length L1: 28.5mm | Grade: C5 | Shaft Length: Custom order | Type: Ball Screw + Ball Spline Combined (BNS-A) | ||
| BNS0812A+C7 | THK BNS0812A, φ8 Lead8, C7 | THK | Shaft Diameter: φ8mm | Lead: 8mm | Ca: 1.1kN | C0a: 1.8kN | Flange D1: 44mm | Nut Length L1: 28.5mm | Grade: C7 | Shaft Length: Custom order | Type: Ball Screw + Ball Spline Combined (BNS-A) | ||
| BNS1015A+C3 | THK BNS1015A, φ10 Lead10, C3 | THK | Shaft Diameter: φ10mm | Lead: 10mm | Ca: 1.7kN | C0a: 2.7kN | Flange D1: 48mm | Nut Length L1: 34.5mm | Grade: C3 | Shaft Length: Custom order | Type: Ball Screw + Ball Spline Combined (BNS-A) | ||
| BNS1015A+C5 | THK BNS1015A, φ10 Lead10, C5 | THK | Shaft Diameter: φ10mm | Lead: 10mm | Ca: 1.7kN | C0a: 2.7kN | Flange D1: 48mm | Nut Length L1: 34.5mm | Grade: C5 | Shaft Length: Custom order | Type: Ball Screw + Ball Spline Combined (BNS-A) | ||
| BNS1015A+C7 | THK BNS1015A, φ10 Lead10, C7 | THK | Shaft Diameter: φ10mm | Lead: 10mm | Ca: 1.7kN | C0a: 2.7kN | Flange D1: 48mm | Nut Length L1: 34.5mm | Grade: C7 | Shaft Length: Custom order | Type: Ball Screw + Ball Spline Combined (BNS-A) | ||
| BNS1616A+C3 | THK BNS1616A, φ16 Lead16, C3 | THK | Shaft Diameter: φ16mm | Lead: 16mm | Ca: 3.9kN | C0a: 7.2kN | Flange D1: 64mm | Nut Length L1: 40.0mm | Grade: C3 | Shaft Length: Custom order | Type: Ball Screw + Ball Spline Combined (BNS-A) | ||
| BNS1616A+C5 | THK BNS1616A, φ16 Lead16, C5 | THK | Shaft Diameter: φ16mm | Lead: 16mm | Ca: 3.9kN | C0a: 7.2kN | Flange D1: 64mm | Nut Length L1: 40.0mm | Grade: C5 | Shaft Length: Custom order | Type: Ball Screw + Ball Spline Combined (BNS-A) | ||
| BNS1616A+C7 | THK BNS1616A, φ16 Lead16, C7 | THK | Shaft Diameter: φ16mm | Lead: 16mm | Ca: 3.9kN | C0a: 7.2kN | Flange D1: 64mm | Nut Length L1: 40.0mm | Grade: C7 | Shaft Length: Custom order | Type: Ball Screw + Ball Spline Combined (BNS-A) | ||
| BNS2020A+C3 | THK BNS2020A, φ20 Lead20, C3 | THK | Shaft Diameter: φ20mm | Lead: 20mm | Ca: 6.1kN | C0a: 12.3kN | Flange D1: 72mm | Nut Length L1: 48.0mm | Grade: C3 | Shaft Length: Custom order | Type: Ball Screw + Ball Spline Combined (BNS-A) | ||
| BNS2020A+C5 | THK BNS2020A, φ20 Lead20, C5 | THK | Shaft Diameter: φ20mm | Lead: 20mm | Ca: 6.1kN | C0a: 12.3kN | Flange D1: 72mm | Nut Length L1: 48.0mm | Grade: C5 | Shaft Length: Custom order | Type: Ball Screw + Ball Spline Combined (BNS-A) | ||
| BNS2020A+C7 | THK BNS2020A, φ20 Lead20, C7 | THK | Shaft Diameter: φ20mm | Lead: 20mm | Ca: 6.1kN | C0a: 12.3kN | Flange D1: 72mm | Nut Length L1: 48.0mm | Grade: C7 | Shaft Length: Custom order | Type: Ball Screw + Ball Spline Combined (BNS-A) | ||
| BNS2525A+C3 | THK BNS2525A, φ25 Lead25, C3 | THK | Shaft Diameter: φ25mm | Lead: 25mm | Ca: 9.1kN | C0a: 19.3kN | Flange D1: 86mm | Nut Length L1: 58.0mm | Grade: C3 | Shaft Length: Custom order | Type: Ball Screw + Ball Spline Combined (BNS-A) | ||
| BNS2525A+C5 | THK BNS2525A, φ25 Lead25, C5 | THK | Shaft Diameter: φ25mm | Lead: 25mm | Ca: 9.1kN | C0a: 19.3kN | Flange D1: 86mm | Nut Length L1: 58.0mm | Grade: C5 | Shaft Length: Custom order | Type: Ball Screw + Ball Spline Combined (BNS-A) | ||
| BNS2525A+C7 | THK BNS2525A, φ25 Lead25, C7 | THK | Shaft Diameter: φ25mm | Lead: 25mm | Ca: 9.1kN | C0a: 19.3kN | Flange D1: 86mm | Nut Length L1: 58.0mm | Grade: C7 | Shaft Length: Custom order | Type: Ball Screw + Ball Spline Combined (BNS-A) | ||
| BNS3232A+C3 | THK BNS3232A, φ32 Lead32, C3 | THK | Shaft Diameter: φ32mm | Lead: 32mm | Ca: 13.0kN | C0a: 29.8kN | Flange D1: 103mm | Nut Length L1: 72.0mm | Grade: C3 | Shaft Length: Custom order | Type: Ball Screw + Ball Spline Combined (BNS-A) | ||
| BNS3232A+C5 | THK BNS3232A, φ32 Lead32, C5 | THK | Shaft Diameter: φ32mm | Lead: 32mm | Ca: 13.0kN | C0a: 29.8kN | Flange D1: 103mm | Nut Length L1: 72.0mm | Grade: C5 | Shaft Length: Custom order | Type: Ball Screw + Ball Spline Combined (BNS-A) | ||
| BNS3232A+C7 | THK BNS3232A, φ32 Lead32, C7 | THK | Shaft Diameter: φ32mm | Lead: 32mm | Ca: 13.0kN | C0a: 29.8kN | Flange D1: 103mm | Nut Length L1: 72.0mm | Grade: C7 | Shaft Length: Custom order | Type: Ball Screw + Ball Spline Combined (BNS-A) | ||
| BNS4040A+C3 | THK BNS4040A, φ40 Lead40, C3 | THK | Shaft Diameter: φ40mm | Lead: 40mm | Ca: 21.4kN | C0a: 49.7kN | Flange D1: 130mm | Nut Length L1: 88.0mm | Grade: C3 | Shaft Length: Custom order | Type: Ball Screw + Ball Spline Combined (BNS-A) | ||
| BNS4040A+C5 | THK BNS4040A, φ40 Lead40, C5 | THK | Shaft Diameter: φ40mm | Lead: 40mm | Ca: 21.4kN | C0a: 49.7kN | Flange D1: 130mm | Nut Length L1: 88.0mm | Grade: C5 | Shaft Length: Custom order | Type: Ball Screw + Ball Spline Combined (BNS-A) | ||
| BNS4040A+C7 | THK BNS4040A, φ40 Lead40, C7 | THK | Shaft Diameter: φ40mm | Lead: 40mm | Ca: 21.4kN | C0a: 49.7kN | Flange D1: 130mm | Nut Length L1: 88.0mm | Grade: C7 | Shaft Length: Custom order | Type: Ball Screw + Ball Spline Combined (BNS-A) |
