![[THK] — Ball Screw Shaft End K-Type (for FF/EF/BF Support Unit, Support Side)](https://prosourcemro.com/wp-content/uploads/2026/05/001-890-1024x1024.png)
Ball Screws
THK
[THK] — Ball Screw Shaft End K-Type (for FF/EF/BF Support Unit, Support Side)
Family ID: THK-K-SHAFT-END
THK recommended shaft end profile K-type for ball screws. Designed for use with FF-type, EF-type, and BF-type support-side support units. Snap ring groove design. Covers ball screw shaft diameters φ8~55mm. Specify shape code K at end of ball screw part number (e.g. -H2K).
17 product codes available in this family
Product Codes & Specifications
| Product Code | Description | Brand | Spec | ||
|---|---|---|---|---|---|
| K-d8-FF6 | THK Shaft End K-type, φ8mm, FF6/EF6 | THK | Ball Screw Shaft Diameter: φ8mm | Compatible Support Units: FF6/EF6 | Bearing Shaft Dia A: 6mm | Snap Ring Groove Length E: 9mm | Type: Shaft End Profile K (Support Side, Snap Ring) | ||
| K-d12-EF8 | THK Shaft End K-type, φ12mm, EF8 | THK | Ball Screw Shaft Diameter: φ12mm | Compatible Support Units: EF8 | Bearing Shaft Dia A: 6mm | Snap Ring Groove Length E: 9mm | Type: Shaft End Profile K (Support Side, Snap Ring) | ||
| K-d14-FF10 | THK Shaft End K-type, φ14mm, FF10/EF10/BF10 | THK | Ball Screw Shaft Diameter: φ14mm | Compatible Support Units: FF10/EF10/BF10 | Bearing Shaft Dia A: 8mm | Snap Ring Groove Length E: 10mm | Type: Shaft End Profile K (Support Side, Snap Ring) | ||
| K-d15-FF10 | THK Shaft End K-type, φ15mm, FF10/EF10/BF10 | THK | Ball Screw Shaft Diameter: φ15mm | Compatible Support Units: FF10/EF10/BF10 | Bearing Shaft Dia A: 8mm | Snap Ring Groove Length E: 10mm | Type: Shaft End Profile K (Support Side, Snap Ring) | ||
| K-d16-FF12 | THK Shaft End K-type, φ16mm, FF12/EF12/BF12 | THK | Ball Screw Shaft Diameter: φ16mm | Compatible Support Units: FF12/EF12/BF12 | Bearing Shaft Dia A: 10mm | Snap Ring Groove Length E: 11mm | Type: Shaft End Profile K (Support Side, Snap Ring) | ||
| K-d18-FF12 | THK Shaft End K-type, φ18mm, FF12/EF12/BF12 | THK | Ball Screw Shaft Diameter: φ18mm | Compatible Support Units: FF12/EF12/BF12 | Bearing Shaft Dia A: 10mm | Snap Ring Groove Length E: 11mm | Type: Shaft End Profile K (Support Side, Snap Ring) | ||
| K-d20-FF15 | THK Shaft End K-type, φ20mm, FF15/EF15/BF15 | THK | Ball Screw Shaft Diameter: φ20mm | Compatible Support Units: FF15/EF15/BF15 | Bearing Shaft Dia A: 15mm | Snap Ring Groove Length E: 13mm | Type: Shaft End Profile K (Support Side, Snap Ring) | ||
| K-d25-FF15 | THK Shaft End K-type, φ25mm, FF15/EF15/BF15 | THK | Ball Screw Shaft Diameter: φ25mm | Compatible Support Units: FF15/EF15/BF15 | Bearing Shaft Dia A: 15mm | Snap Ring Groove Length E: 13mm | Type: Shaft End Profile K (Support Side, Snap Ring) | ||
| K-d25-BF17 | THK Shaft End K-type, φ25mm, BF17 | THK | Ball Screw Shaft Diameter: φ25mm | Compatible Support Units: BF17 | Bearing Shaft Dia A: 17mm | Snap Ring Groove Length E: 16mm | Type: Shaft End Profile K (Support Side, Snap Ring) | ||
| K-d28-FF20 | THK Shaft End K-type, φ28mm, FF20/EF20/BF20 | THK | Ball Screw Shaft Diameter: φ28mm | Compatible Support Units: FF20/EF20/BF20 | Bearing Shaft Dia A: 20mm | Snap Ring Groove Length E: 19mm | Type: Shaft End Profile K (Support Side, Snap Ring) | ||
| K-d30-FF20 | THK Shaft End K-type, φ30mm, FF20/EF20/BF20 | THK | Ball Screw Shaft Diameter: φ30mm | Compatible Support Units: FF20/EF20/BF20 | Bearing Shaft Dia A: 20mm | Snap Ring Groove Length E: 19mm | Type: Shaft End Profile K (Support Side, Snap Ring) | ||
| K-d32-FF20 | THK Shaft End K-type, φ32mm, FF20/EF20/BF20 | THK | Ball Screw Shaft Diameter: φ32mm | Compatible Support Units: FF20/EF20/BF20 | Bearing Shaft Dia A: 20mm | Snap Ring Groove Length E: 19mm | Type: Shaft End Profile K (Support Side, Snap Ring) | ||
| K-d36-FF25 | THK Shaft End K-type, φ36mm, FF25/BF25 | THK | Ball Screw Shaft Diameter: φ36mm | Compatible Support Units: FF25/BF25 | Bearing Shaft Dia A: 25mm | Snap Ring Groove Length E: 20mm | Type: Shaft End Profile K (Support Side, Snap Ring) | ||
| K-d40-FF30 | THK Shaft End K-type, φ40mm, FF30/BF30 | THK | Ball Screw Shaft Diameter: φ40mm | Compatible Support Units: FF30/BF30 | Bearing Shaft Dia A: 30mm | Snap Ring Groove Length E: 21mm | Type: Shaft End Profile K (Support Side, Snap Ring) | ||
| K-d45-BF35 | THK Shaft End K-type, φ45mm, BF35 | THK | Ball Screw Shaft Diameter: φ45mm | Compatible Support Units: BF35 | Bearing Shaft Dia A: 35mm | Snap Ring Groove Length E: 22mm | Type: Shaft End Profile K (Support Side, Snap Ring) | ||
| K-d50-BF40 | THK Shaft End K-type, φ50mm, BF40 | THK | Ball Screw Shaft Diameter: φ50mm | Compatible Support Units: BF40 | Bearing Shaft Dia A: 40mm | Snap Ring Groove Length E: 23mm | Type: Shaft End Profile K (Support Side, Snap Ring) | ||
| K-d55-BF40 | THK Shaft End K-type, φ55mm, BF40 | THK | Ball Screw Shaft Diameter: φ55mm | Compatible Support Units: BF40 | Bearing Shaft Dia A: 40mm | Snap Ring Groove Length E: 23mm | Type: Shaft End Profile K (Support Side, Snap Ring) |
