THK EF Support Unit, Support Side, Square (Bore 6-20)

Square-housing support-side (floating) unit with a sealed deep groove ball bearing and snap ring, matched in height to the EK fixed-side unit.

Key features

Support (free) side with shielded deep groove ball bearing (ZZ) retained by a snap ring
Same centre height as the EK fixed-side unit of the same number
Use recommended shaft end K (snap-ring groove)
Model number stamped on the housing
Housing, bearing and snap ring supplied as a set

Specifications

Brand	THK
Series	EF
Side	Support side
Housing	Square (block)
Bore range	6 - 20 mm
Bearing	Deep groove ball bearing ZZ
Matching fixed side	EK
Recommended shaft end	K
Dimensions	L x B x H
Source	THK General Catalog Ball Screw (Korean ed. 515-2K), p. A15-358-359

EF6		Shaft dia d: 6 mm \| L x B x H: 12 x 42 x 25 mm \| Bearing: 606ZZ \| Radial C / C0: 2.19 / 0.87 kN \| Snap ring: C6 \| Mass: 0.07 kg
EF8		Shaft dia d: 6 mm \| L x B x H: 14 x 52 x 32 mm \| Bearing: 606ZZ \| Radial C / C0: 2.19 / 0.87 kN \| Snap ring: C6 \| Mass: 0.13 kg
EF10		Shaft dia d: 8 mm \| L x B x H: 20 x 70 x 43 mm \| Bearing: 608ZZ \| Radial C / C0: 3.35 / 1.4 kN \| Snap ring: C8 \| Mass: 0.33 kg
EF12		Shaft dia d: 10 mm \| L x B x H: 20 x 70 x 43 mm \| Bearing: 6000ZZ \| Radial C / C0: 4.55 / 1.96 kN \| Snap ring: C10 \| Mass: 0.32 kg
EF15		Shaft dia d: 15 mm \| L x B x H: 20 x 80 x 49 mm \| Bearing: 6002ZZ \| Radial C / C0: 5.6 / 2.84 kN \| Snap ring: C15 \| Mass: 0.38 kg
EF20		Shaft dia d: 20 mm \| L x B x H: 26 x 95 x 58 mm \| Bearing: 6204ZZ \| Radial C / C0: 12.8 / 6.65 kN \| Snap ring: C20 \| Mass: 0.63 kg

Ball Screw Support UnitsTHK

6 product codes available in this family

Sourced direct from KoreaExport-ready supplyCompetitive pricing

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THK EF Support Unit, Support Side, Square (Bore 6-20)

Brand THK·Ball Screw Support Units

Available part numbers (6)

EF6, EF8, EF10, EF12, EF15, EF20

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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RFQ List (0)

	Product code	Spec
	EF6	Shaft dia d: 6 mm \| L x B x H: 12 x 42 x 25 mm \| Bearing: 606ZZ \| Radial C / C0: 2.19 / 0.87 kN \| Snap ring: C6 \| Mass: 0.07 kg
	EF8	Shaft dia d: 6 mm \| L x B x H: 14 x 52 x 32 mm \| Bearing: 606ZZ \| Radial C / C0: 2.19 / 0.87 kN \| Snap ring: C6 \| Mass: 0.13 kg
	EF10	Shaft dia d: 8 mm \| L x B x H: 20 x 70 x 43 mm \| Bearing: 608ZZ \| Radial C / C0: 3.35 / 1.4 kN \| Snap ring: C8 \| Mass: 0.33 kg
	EF12	Shaft dia d: 10 mm \| L x B x H: 20 x 70 x 43 mm \| Bearing: 6000ZZ \| Radial C / C0: 4.55 / 1.96 kN \| Snap ring: C10 \| Mass: 0.32 kg
	EF15	Shaft dia d: 15 mm \| L x B x H: 20 x 80 x 49 mm \| Bearing: 6002ZZ \| Radial C / C0: 5.6 / 2.84 kN \| Snap ring: C15 \| Mass: 0.38 kg
	EF20	Shaft dia d: 20 mm \| L x B x H: 26 x 95 x 58 mm \| Bearing: 6204ZZ \| Radial C / C0: 12.8 / 6.65 kN \| Snap ring: C20 \| Mass: 0.63 kg

Need a different model, or a part not listed here? Send us your parts list →

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THK EF Support Unit, Support Side, Square (Bore 6-20)