• THK Ball Screw Shaft End H-Type (H1/H2/H3, for FK/EK Support Unit)
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THK Ball Screw Shaft End H-Type (H1/H2/H3, for FK/EK Support Unit)

THK Ball Screw Shaft End H-Type (H1/H2/H3, for FK/EK Support Unit)

THK recommended shaft end profile H-type (H1, H2, H3) for ball screws.

Key features

  • Designed for use with FK-type and EK-type support units
  • Covers ball screw shaft diameters φ6~40mm
  • H1: plain, H2: with keyway, H3: with chamfer
  • Specify shape code at end of ball screw part number (e.g. -H2K)

Specifications

Shape H1 (plain) / H2 (keyway) / H3 (chamfer)
Type Shaft End Profile for FK/EK Support Unit
H-d6-FK4 THK Shaft End H-type, φ6mm, FK4/EK4 | Ball Screw Shaft Diameter: φ6mm | Support Unit: FK4 / EK4 | Bearing Shaft Dia A: 4mm | B: 3mm | Thread Length E: 23mm | F: 5mm | Thread M: M4×0.5 | S: 7mm | Shape: H1 (plain) / H2 (keyway) / H3 (chamfer) | Type: Shaft End Profile for FK/EK Support Unit
H-d8-FK5 THK Shaft End H-type, φ8mm, FK5/EK5 | Ball Screw Shaft Diameter: φ8mm | Support Unit: FK5 / EK5 | Bearing Shaft Dia A: 5mm | B: 4mm | Thread Length E: 25mm | F: 6mm | Thread M: M5×0.5 | S: 7mm | Shape: H1 (plain) / H2 (keyway) / H3 (chamfer) | Type: Shaft End Profile for FK/EK Support Unit
H-d10-FK6 THK Shaft End H-type, φ10mm, FK6/EK6 | Ball Screw Shaft Diameter: φ10mm | Support Unit: FK6 / EK6 | Bearing Shaft Dia A: 6mm | B: 4mm | Thread Length E: 30mm | F: 8mm | Thread M: M6×0.75 | S: 8mm | Shape: H1 (plain) / H2 (keyway) / H3 (chamfer) | Type: Shaft End Profile for FK/EK Support Unit
H-d12-FK8 THK Shaft End H-type, φ12mm, FK8/EK8 | Ball Screw Shaft Diameter: φ12mm | Support Unit: FK8 / EK8 | Bearing Shaft Dia A: 8mm | B: 6mm | Thread Length E: 35mm | F: 9mm | Thread M: M8×1 | S: 10mm | Shape: H1 (plain) / H2 (keyway) / H3 (chamfer) | Type: Shaft End Profile for FK/EK Support Unit
H-d14-FK10 THK Shaft End H-type, φ14mm, FK10/EK10 | Ball Screw Shaft Diameter: φ14mm | Support Unit: FK10 / EK10 | Bearing Shaft Dia A: 10mm | B: 8mm | Thread Length E: 36mm | F: 15mm | Thread M: M10×1 | S: 11mm | Shape: H1 (plain) / H2 (keyway) / H3 (chamfer) | Type: Shaft End Profile for FK/EK Support Unit
H-d15-FK10 THK Shaft End H-type, φ15mm, FK10/EK10 | Ball Screw Shaft Diameter: φ15mm | Support Unit: FK10 / EK10 | Bearing Shaft Dia A: 10mm | B: 8mm | Thread Length E: 36mm | F: 15mm | Thread M: M10×1 | S: 11mm | Shape: H1 (plain) / H2 (keyway) / H3 (chamfer) | Type: Shaft End Profile for FK/EK Support Unit
H-d16-FK12 THK Shaft End H-type, φ16mm, FK12/EK12 | Ball Screw Shaft Diameter: φ16mm | Support Unit: FK12 / EK12 | Bearing Shaft Dia A: 12mm | B: 10mm | Thread Length E: 36mm | F: 15mm | Thread M: M12×1 | S: 11mm | Shape: H1 (plain) / H2 (keyway) / H3 (chamfer) | Type: Shaft End Profile for FK/EK Support Unit
H-d18-FK12 THK Shaft End H-type, φ18mm, FK12/EK12 | Ball Screw Shaft Diameter: φ18mm | Support Unit: FK12 / EK12 | Bearing Shaft Dia A: 12mm | B: 10mm | Thread Length E: 36mm | F: 15mm | Thread M: M12×1 | S: 11mm | Shape: H1 (plain) / H2 (keyway) / H3 (chamfer) | Type: Shaft End Profile for FK/EK Support Unit
H-d20-FK15 THK Shaft End H-type, φ20mm, FK15/EK15 | Ball Screw Shaft Diameter: φ20mm | Support Unit: FK15 / EK15 | Bearing Shaft Dia A: 15mm | B: 12mm | Thread Length E: 49mm | F: 20mm | Thread M: M15×1 | S: 13mm | Shape: H1 (plain) / H2 (keyway) / H3 (chamfer) | Type: Shaft End Profile for FK/EK Support Unit
H-d25-FK15 THK Shaft End H-type, φ25mm, FK15/EK15 | Ball Screw Shaft Diameter: φ25mm | Support Unit: FK15 / EK15 | Bearing Shaft Dia A: 15mm | B: 12mm | Thread Length E: 49mm | F: 20mm | Thread M: M15×1 | S: 13mm | Shape: H1 (plain) / H2 (keyway) / H3 (chamfer) | Type: Shaft End Profile for FK/EK Support Unit
H-d28-FK20 THK Shaft End H-type, φ28mm, FK20/EK20 | Ball Screw Shaft Diameter: φ28mm | Support Unit: FK20 / EK20 | Bearing Shaft Dia A: 20mm | B: 17mm | Thread Length E: 64mm | F: 25mm | Thread M: M20×1 | S: 17mm | Shape: H1 (plain) / H2 (keyway) / H3 (chamfer) | Type: Shaft End Profile for FK/EK Support Unit
H-d30-FK20 THK Shaft End H-type, φ30mm, FK20/EK20 | Ball Screw Shaft Diameter: φ30mm | Support Unit: FK20 / EK20 | Bearing Shaft Dia A: 20mm | B: 17mm | Thread Length E: 64mm | F: 25mm | Thread M: M20×1 | S: 17mm | Shape: H1 (plain) / H2 (keyway) / H3 (chamfer) | Type: Shaft End Profile for FK/EK Support Unit
H-d32-FK20 THK Shaft End H-type, φ32mm, FK20/EK20 | Ball Screw Shaft Diameter: φ32mm | Support Unit: FK20 / EK20 | Bearing Shaft Dia A: 20mm | B: 17mm | Thread Length E: 64mm | F: 25mm | Thread M: M20×1 | S: 17mm | Shape: H1 (plain) / H2 (keyway) / H3 (chamfer) | Type: Shaft End Profile for FK/EK Support Unit
H-d36-FK25 THK Shaft End H-type, φ36mm, FK25/N/A | Ball Screw Shaft Diameter: φ36mm | Support Unit: FK25 / N/A | Bearing Shaft Dia A: 25mm | B: 20mm | Thread Length E: 76mm | F: 30mm | Thread M: M25×1.5 | S: 20mm | Shape: H1 (plain) / H2 (keyway) / H3 (chamfer) | Type: Shaft End Profile for FK/EK Support Unit
H-d40-FK30 THK Shaft End H-type, φ40mm, FK30/N/A | Ball Screw Shaft Diameter: φ40mm | Support Unit: FK30 / N/A | Bearing Shaft Dia A: 30mm | B: 25mm | Thread Length E: 72mm | F: 38mm | Thread M: M30×1.5 | S: 25mm | Shape: H1 (plain) / H2 (keyway) / H3 (chamfer) | Type: Shaft End Profile for FK/EK Support Unit
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THK Ball Screw Shaft End H-Type (H1/H2/H3, for FK/EK Support Unit)

Brand THK·Ball Screws

Available part numbers (15)

H-d6-FK4, H-d8-FK5, H-d10-FK6, H-d12-FK8, H-d14-FK10, H-d15-FK10, H-d16-FK12, H-d18-FK12, H-d20-FK15, H-d25-FK15 + 5 more — see full table ↓

How to order

Send the THK part numbers and quantities through our RFQ form or to info@prosourcemro.com. We confirm price, availability and lead time within 1 business day — no account needed.

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Product codes & specifications
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Product codeSpec
H-d6-FK4THK Shaft End H-type, φ6mm, FK4/EK4 | Ball Screw Shaft Diameter: φ6mm | Support Unit: FK4 / EK4 | Bearing Shaft Dia A: 4mm | B: 3mm | Thread Length E: 23mm | F: 5mm | Thread M: M4×0.5 | S: 7mm | Shape: H1 (plain) / H2 (keyway) / H3 (chamfer) | Type: Shaft End Profile for FK/EK Support Unit
H-d8-FK5THK Shaft End H-type, φ8mm, FK5/EK5 | Ball Screw Shaft Diameter: φ8mm | Support Unit: FK5 / EK5 | Bearing Shaft Dia A: 5mm | B: 4mm | Thread Length E: 25mm | F: 6mm | Thread M: M5×0.5 | S: 7mm | Shape: H1 (plain) / H2 (keyway) / H3 (chamfer) | Type: Shaft End Profile for FK/EK Support Unit
H-d10-FK6THK Shaft End H-type, φ10mm, FK6/EK6 | Ball Screw Shaft Diameter: φ10mm | Support Unit: FK6 / EK6 | Bearing Shaft Dia A: 6mm | B: 4mm | Thread Length E: 30mm | F: 8mm | Thread M: M6×0.75 | S: 8mm | Shape: H1 (plain) / H2 (keyway) / H3 (chamfer) | Type: Shaft End Profile for FK/EK Support Unit
H-d12-FK8THK Shaft End H-type, φ12mm, FK8/EK8 | Ball Screw Shaft Diameter: φ12mm | Support Unit: FK8 / EK8 | Bearing Shaft Dia A: 8mm | B: 6mm | Thread Length E: 35mm | F: 9mm | Thread M: M8×1 | S: 10mm | Shape: H1 (plain) / H2 (keyway) / H3 (chamfer) | Type: Shaft End Profile for FK/EK Support Unit
H-d14-FK10THK Shaft End H-type, φ14mm, FK10/EK10 | Ball Screw Shaft Diameter: φ14mm | Support Unit: FK10 / EK10 | Bearing Shaft Dia A: 10mm | B: 8mm | Thread Length E: 36mm | F: 15mm | Thread M: M10×1 | S: 11mm | Shape: H1 (plain) / H2 (keyway) / H3 (chamfer) | Type: Shaft End Profile for FK/EK Support Unit
H-d15-FK10THK Shaft End H-type, φ15mm, FK10/EK10 | Ball Screw Shaft Diameter: φ15mm | Support Unit: FK10 / EK10 | Bearing Shaft Dia A: 10mm | B: 8mm | Thread Length E: 36mm | F: 15mm | Thread M: M10×1 | S: 11mm | Shape: H1 (plain) / H2 (keyway) / H3 (chamfer) | Type: Shaft End Profile for FK/EK Support Unit
H-d16-FK12THK Shaft End H-type, φ16mm, FK12/EK12 | Ball Screw Shaft Diameter: φ16mm | Support Unit: FK12 / EK12 | Bearing Shaft Dia A: 12mm | B: 10mm | Thread Length E: 36mm | F: 15mm | Thread M: M12×1 | S: 11mm | Shape: H1 (plain) / H2 (keyway) / H3 (chamfer) | Type: Shaft End Profile for FK/EK Support Unit
H-d18-FK12THK Shaft End H-type, φ18mm, FK12/EK12 | Ball Screw Shaft Diameter: φ18mm | Support Unit: FK12 / EK12 | Bearing Shaft Dia A: 12mm | B: 10mm | Thread Length E: 36mm | F: 15mm | Thread M: M12×1 | S: 11mm | Shape: H1 (plain) / H2 (keyway) / H3 (chamfer) | Type: Shaft End Profile for FK/EK Support Unit
H-d20-FK15THK Shaft End H-type, φ20mm, FK15/EK15 | Ball Screw Shaft Diameter: φ20mm | Support Unit: FK15 / EK15 | Bearing Shaft Dia A: 15mm | B: 12mm | Thread Length E: 49mm | F: 20mm | Thread M: M15×1 | S: 13mm | Shape: H1 (plain) / H2 (keyway) / H3 (chamfer) | Type: Shaft End Profile for FK/EK Support Unit
H-d25-FK15THK Shaft End H-type, φ25mm, FK15/EK15 | Ball Screw Shaft Diameter: φ25mm | Support Unit: FK15 / EK15 | Bearing Shaft Dia A: 15mm | B: 12mm | Thread Length E: 49mm | F: 20mm | Thread M: M15×1 | S: 13mm | Shape: H1 (plain) / H2 (keyway) / H3 (chamfer) | Type: Shaft End Profile for FK/EK Support Unit
H-d28-FK20THK Shaft End H-type, φ28mm, FK20/EK20 | Ball Screw Shaft Diameter: φ28mm | Support Unit: FK20 / EK20 | Bearing Shaft Dia A: 20mm | B: 17mm | Thread Length E: 64mm | F: 25mm | Thread M: M20×1 | S: 17mm | Shape: H1 (plain) / H2 (keyway) / H3 (chamfer) | Type: Shaft End Profile for FK/EK Support Unit
H-d30-FK20THK Shaft End H-type, φ30mm, FK20/EK20 | Ball Screw Shaft Diameter: φ30mm | Support Unit: FK20 / EK20 | Bearing Shaft Dia A: 20mm | B: 17mm | Thread Length E: 64mm | F: 25mm | Thread M: M20×1 | S: 17mm | Shape: H1 (plain) / H2 (keyway) / H3 (chamfer) | Type: Shaft End Profile for FK/EK Support Unit
H-d32-FK20THK Shaft End H-type, φ32mm, FK20/EK20 | Ball Screw Shaft Diameter: φ32mm | Support Unit: FK20 / EK20 | Bearing Shaft Dia A: 20mm | B: 17mm | Thread Length E: 64mm | F: 25mm | Thread M: M20×1 | S: 17mm | Shape: H1 (plain) / H2 (keyway) / H3 (chamfer) | Type: Shaft End Profile for FK/EK Support Unit
H-d36-FK25THK Shaft End H-type, φ36mm, FK25/N/A | Ball Screw Shaft Diameter: φ36mm | Support Unit: FK25 / N/A | Bearing Shaft Dia A: 25mm | B: 20mm | Thread Length E: 76mm | F: 30mm | Thread M: M25×1.5 | S: 20mm | Shape: H1 (plain) / H2 (keyway) / H3 (chamfer) | Type: Shaft End Profile for FK/EK Support Unit
H-d40-FK30THK Shaft End H-type, φ40mm, FK30/N/A | Ball Screw Shaft Diameter: φ40mm | Support Unit: FK30 / N/A | Bearing Shaft Dia A: 30mm | B: 25mm | Thread Length E: 72mm | F: 38mm | Thread M: M30×1.5 | S: 25mm | Shape: H1 (plain) / H2 (keyway) / H3 (chamfer) | Type: Shaft End Profile for FK/EK Support Unit

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