Compact Series SKR20

Brand :

THK

Caution

Some of the items are scheduled to be discontinued as of end of March in 2023. The manufacturer keep the items produced but they are not available with Misumi.
There are not the replacement items and the plan to resumption of sale. Please check the quotation and order screen for details.

Product Description

A compact, high-rigidity and high-precision actuator with an integrated inner block consisting of an LM block and ball screw nut.
In addition, as the housing A/B serves as a support unit and the inner block serves as a table, it is possible to dramatically reduce the steps in designing and assembling.

[Features]
· Arranged to make contact at an angle of 45° such that the load is equal in 4 directions, enabling use in various positions.
· The linear guide is made of 4 rows of circular arced grooves for a highly rigid guide with no cracks.
· Changes to friction resistance due to changes in load are suppressed as far as possible, promoting high-accuracy feeding.
· The U-shaped cross-sectional outer rail improves rigidity against moment and torsion.

[Effects of Using Ball Retainer]
· The grease retention capacity has been improved, allowing long-term maintenance-free operation. (QZ Lubricator is attached to the ball screw.)
· Eliminates mutual friction between balls, reduces torque fluctuation and achieves excellent sliding performance.
· In addition, since the basic dynamic load rating of the LM guide and ball screw is higher than conventional products, it has a long service life.

■Selection list / options
　· SKR selection list (reference)
　· Sensor selection list
　· Sensor rail selection list
　· Motor, coupling correspondence table

■ SKR selection list (reference)

Model	Ball screw Reed (mm)	Block Type	Max. stroke (mm)	Rated speed *1 (mm/s)	Motor Rated output (W)	*Maximum payload (kg) 2**		Maximum speed *3 (mm/s)
						Horizontal	Vertical
SKR20	1	A	130	50	50	12.5	3	100
		B	85
	6	A	130	300			6	600
		B	85
SKR26	2	A	210	100	50	27.5	14	200
		B	145
	6	A	210	300			7	600
		B	145
SKR33	6	A	595	300	100	43.5	19	390 to 600
		B	520
		C	620					360 to 600
		D	570
	10	A	595	500		34.5	12	650 to 1000
		B	520
		C	620					600 to 1000
		D	570
	20	A	595	1000		21	6	1270 to 2000
		B	520
SKR46	10	A	790	500	200 400	At 200 W: 77 At 400 W: 96	At 200 W: 18 At 400 W: 23	430 to 1000
		B	680
		C	820					400 to 1000
		D	745
	20	A	790	1000	200 400	At 200 W: 42 At 400 W: 90	At 200 W: 8 At 400 W: 18	840 to 2000
		B	680
		C	820					780 to 2000
		D	745

*1 The rated speed is the speed at the rated speed of the motor (3,000 minutes - 1). It depends on the stroke.
*2 The maximum payload is a guideline for the weight when the rated speed of 1 block (type A) is 0.3 G (0.15 G for leads 6 mm or less, 0.5 G for leads 20 mm or more) and the motor is directly connected.
*3 The maximum speed is the speed limited by the motor speed (6,000 minutes - 1) or the allowable speed of the ball screw. If the speed exceeds the rated speed, the weight that can be mounted will differ.
　 The maximum speed changes depending on the stroke, so please see the catalog for details.

■ Sensor selection list

Model	With/Without Cover	Symbol	Specifications	Sensor model	stroke	Order part number
KR20	Without cover	-02	Photosensor	EE-SX671	Stroke 70 mm or more	KR20-02 (one side) photosensor / parts 1 set
		-02	Omron	EE-SX671	Stroke less than 70 mm	KR20-02 (both sides) photosensor / parts 1 set
		-06	Photosensor	EE-SX674	Stroke 70 mm or more	KR20-06 (one side) photosensor / parts 1 set
		-06	Omron	EE-SX674	Stroke less than 70 mm	KR20-06 (both sides) photosensor / parts 1 set
		-07	Proximity sensor	APM-D3A1-001	Stroke 70 mm or more	KR20-07 (one side) proximity sensor / parts 1 set
		-07	Azbil	APM-D3A1-001	Stroke less than 70 mm	KR20-07 (both sides) proximity sensor / parts 1 set
		-0B	Proximity sensor	APM-D3B1-003	Stroke 70 mm or more	KR20-0B (one side) proximity sensor / parts 1 set
		-0B	Azbil	APM-D3B1-003	Stroke less than 70 mm	KR20-0B (both sides) proximity sensor / parts 1 set
		-0E	Proximity sensor	APM-D3A1-001	Stroke 70 mm or more	KR20-0E (one side) proximity sensor / parts 1 set
		-0E	Azbil	APM-D3B1-003	Stroke less than 70 mm	KR20-0E (both sides) proximity sensor / parts 1 set
		-0H	Proximity sensor	GX-F12A	Stroke 70 mm or more	KR20-0H (one side) proximity sensor / parts 1 set
		-0H	Panasonic Industrial Devices SUNX Co., Ltd.	GX-F12A	Stroke less than 70 mm	KR20-0H (both sides) proximity sensor / parts 1 set
		-0L	Proximity sensor	GX-F12B	Stroke 70 mm or more	KR20-0L (one side) proximity sensor / parts 1 set
		-0L	Panasonic Industrial Devices SUNX Co., Ltd.	GX-F12B	Stroke less than 70 mm	KR20-0L (both sides) proximity sensor / parts 1 set
		-0J	Proximity sensor	GX-F12A	Stroke 70 mm or more	KR20-0J (one side) proximity sensor / parts 1 set
		-0J	Panasonic Industrial Devices SUNX Co., Ltd.	GX-F12B	Stroke less than 70 mm	KR20-0J (both sides) proximity sensor / parts 1 set
		-0M	Proximity sensor	GX-F12A-P	Stroke 70 mm or more	KR20-0M (one side) proximity sensor / parts 1 set
		-0M	Panasonic Industrial Devices SUNX Co., Ltd.	GX-F12B-P	Stroke less than 70 mm	KR20-0M (both sides) proximity sensor / parts 1 set
	With Cover	-12	Photosensor	EE-SX671	Stroke 70 mm or more	KR20-12 (one side) photosensor / parts 1 set
		-12	Omron	EE-SX671	Stroke less than 70 mm	KR20-12 (both sides) photosensor / parts 1 set
		-16	Photosensor	EE-SX674	Stroke 70 mm or more	KR20-16 (one side) photosensor / parts 1 set
		-16	Omron	EE-SX674	Stroke less than 70 mm	KR20-16 (both sides) photosensor / parts 1 set
		-17	Proximity sensor	APM-D3A1-001	Stroke 70 mm or more	KR20-17 (one side) proximity sensor / parts 1 set
		-17	Azbil	APM-D3A1-001	Stroke less than 70 mm	KR20-17 (both sides) proximity sensor / parts 1 set
		-1B	Proximity sensor	APM-D3B1-003	Stroke 70 mm or more	KR20-1B (one side) proximity sensor / parts 1 set
		-1B	Azbil	APM-D3B1-003	Stroke less than 70 mm	KR20-1B (both sides) proximity sensor / parts 1 set
		-1E	Proximity sensor	APM-D3A1-001	Stroke 70 mm or more	KR20-1E (one side) proximity sensor / parts 1 set
		-1E	Azbil	APM-D3B1-003	Stroke less than 70 mm	KR20-1E (both sides) proximity sensor / parts 1 set
		-1H	Proximity sensor	GX-F12A	Stroke 70 mm or more	KR20-1H (one side) proximity sensor / parts 1 set
		-1H	Panasonic Industrial Devices SUNX Co., Ltd.	GX-F12A	Stroke less than 70 mm	KR20-1H (both sides) proximity sensor / parts 1 set
		-1L	Proximity sensor	GX-F12B	Stroke 70 mm or more	KR20-1L (one side) proximity sensor / parts 1 set
		-1L	Panasonic Industrial Devices SUNX Co., Ltd.	GX-F12B	Stroke less than 70 mm	KR20-1L (both sides) proximity sensor / parts 1 set
		-1J	Proximity sensor	GX-F12A	Stroke 70 mm or more	KR20-1J (one side) proximity sensor / parts 1 set
		-1J	Panasonic Industrial Devices SUNX Co., Ltd.	GX-F12B	Stroke less than 70 mm	KR20-1J (both sides) proximity sensor / parts 1 set
		-1M	Proximity sensor	GX-F12A-P	Stroke 70 mm or more	KR20-1M (one side) proximity sensor / parts 1 set
		-1M	Panasonic Industrial Devices SUNX Co., Ltd.	GX-F12B-P	Stroke less than 70 mm	KR20-1M (both sides) proximity sensor / parts 1 set

■ Sensor rail selection list

Model	Stroke by block type		Order part number
	A type	B type
KR20	30	—	KR20/26/SKR20/26-sensor rail 1 set - 100 × 2

	80	—	KR20/26/SKR20/26-sensor rail 1 set - 150

	—	35	KR20/26/SKR20/26-sensor rail 1 set - 150 × 2

	130	85	KR20/26/SKR20/26-sensor rail 1 set - 200

■ Motor coupling correspondence table

Direct connection

Motor Type	Manufacturer	series	Motor model	Rated output [W]	Flange angle	Middle Fange Model	Applicable coupling model
							Miki Pulley Co., Ltd.	Nabeya Bi-tech Kaisha (NBK)
AC Servo Motor	YASKAWA ELECTRIC	Σ-V mini	SGMMV-A1	10	□25	N	SFC-010DA2-4B-5B-L32	XGT2-15C-4-5
			SGMMV-A2	20
			SGMMV-A3	30
		Σ-Ⅴ	SGMJV-A5	50	□40	Q	SFC-010DA2-4B-8B	XGT2-19C-4-8
			SGMAV-A5
		Σ-7	SGM7J-A5	50	□40	Q	SFC-010DA2-4B-8B	XGT2-19C-4-8
			SGM7A-A5
	Mitsubishi Electric	MELSERVO J3	HF-KP053	50	□40	Q	SFC-010DA2-4B-8B	XGT2-19C-4-8
			HF-MP053
		MELSERVO J4	HG-AK0136	10	□25	N	SFC-010DA2-4B-5B-L32	XGT2-15C-4-5
			HG-AK0236	20
			HG-AK0336	30
			HG-KR053	50	□40	Q	SFC-010DA2-4B-8B	XGT2-19C-4-8
			HG-MR053
		MELSERVO JN	HF-KN053	50	□40	Q	SFC-010DA2-4B-8B	XGT2-19C-4-8
	TAMAGAWA SEIKI Co., Ltd.	TBL-iII	TS4602	50	□40	Q	SFC-010DA2-4B-8B	XGT2-19C-4-8
		TBL-iIV	TSM3102	50	□40	Q	SFC-010DA2-4B-8B	XGT2-19C-4-8
	Panasonic	MINAS A5	MSMD5A	50	38 × 38	P	SFC-010DA2-4B-8B	XGT2-19C-4-8
			MSME5A
		MINAS A6	MSMF5A	50	38 × 38	P	SFC-010DA2-4B-8B	XGT2-19C-4-8
			MHMF5A		□40	Q	SFC-010DA2-4B-8B	XGT2-19C-4-8
	KEYENCE	SV	SV-M005	50	□40	Q	SFC-010DA2-4B-8B	XGT2-19C-4-8
		SV2	SV2-M005	50	□40	Q	SFC-010DA2-4B-8B	XGT2-19C-4-8
	SANYO DENKI	SANMOTION R	R2□A04005	50	□40	Q	SFC-010DA2-4B-8B	XGT2-19C-4-8
	OMRON	OMNUC G5	R88M-K05030	50	□40	Q	SFC-010DA2-4B-8B	XGT2-19C-4-8
	FANUC CORPORATION	β is series	β is 0.2/5000	50	□40	Q	SFC-010DA2-4B-8B	XGT2-19C-4-8

Motor Type	Manufacturer	series		Motor model	Flange angle	Intermediate flange model	Applicable coupling model
							Miki Pulley Co., Ltd.	Nabeya Bi-tech Kaisha (NBK)
Stepper Motor	Oriental Motor co., ltd.	AlphaStep		AZ2, AR2	□28	S	SFC-010DA2-4B-5B-L32	XGT2-15C-4-5
				AZ4, AR4 (Excluding AZM48)	□42	R	SFC-010DA2-4B-6B	XGT2-15C-4-6
				AZM48	□42	R	SFC-010DA2-4B-8B	XGT2-19C-4-8
		5-phase	CRK	CRK52*	□28	S	SFC-010DA2-4B-5B-L32	XGT2-15C-4-5
				CRK54*	□42	R	SFC-010DA2-4B-5B	XGT2-15C-4-5
			RKⅡ	RKS54*	□42	R	SFC-010DA2-4B-6B	XGT2-15C-4-6
			PKA	PKA544	□42	R	SFC-010DA2-4B-5B	XGT2-15C-4-5
			CVK	PKP52*	□28	S	SFC-010DA2-4B-5B-L32	XGT2-15C-4-5
				PKP54*	□42	R	SFC-010DA2-4B-5B	XGT2-15C-4-5
		2-phase	CVK	PKP22*	□28	S	SFC-010DA2-4B-5B-L32	XGT2-15C-4-5
				PKP24*	□42	R	SFC-010DA2-4B-5B	XGT2-15C-4-5
	KEYENCE	2-phase		QS-M28	□28	S	SFC-010DA2-4B-5B-L32	XGT2-15C-4-5
				QS-M42	□42	R	SFC-010DA2-4B-5B	XGT2-15C-4-5
	SANYO DENKI	PB		PBDM28*	□28	S	SFC-010DA2-4B-5B	XGT2-15C-4-5
				PBDM423, PBA423**	□42	R	SFC-010DA2-4B-6B	XGT2-15C-4-6
		5-phase		FAF/FDF52*	□28	S	SFC-010DA2-4B-5B-L32	XGT2-15C-4-5
				*FAF54/FDF54/* FA511M42/FB511M42	□42	R	SFC-010DA2-4B-6B	XGT2-15C-4-6

		2-phase		D14S28	□28	S	SFC-010DA2-4B-5B-L32	XGT2-15C-4-5
				DB14H52*	□42	R	SFC-010DA2-4B-5B	XGT2-15C-4-5
				DU15H52*		R	SFC-010DA2-4B-5B	XGT2-15C-4-5

Turn back

Motor Type	Manufacturer	series	Motor model	Rated output [W]	Flange angle	Wrap sign

AC Servo Motor	YASKAWA ELECTRIC	Σ-V mini	SGMMV-A1	10	□25	WN-05D
			SGMMV-A2	20
			SGMMV-A3	30
		Σ-Ⅴ	SGMJV-A5	50	□40	WQ-08K
			SGMAV-A5
		Σ-7	SGM7J-A5	50	□40	WQ-08K
			SGM7A-A5
	Mitsubishi Electric	MELSERVO J3	HF-KP053	50	□40	WQ-08D
			HF-MP053
		MELSERVO J4	HG-AK0136	10	□25	WN-05D
			HG-AK0236	20
			HG-AK0336	30
			HG-KR053	50	□40	WQ-08D
			HG-MR053
		MELSERVO JN	HF-KN053	50	□40	WQ-08D
	TAMAGAWA SEIKI Co., Ltd.	TBL-iII	TS4602	50	□40	WQ-08D
		TBL-iIV	TSM3102	50	□40	WQ-08D
	Panasonic	MINAS A5	MSMD5A	50	38 × 38	WP-08D, WP-08K
			MSME5A
		MINAS A6	MSMF5A	50	38 × 38	WP-08K
			MHMF5A		□40	WQ-08K
	KEYENCE	SV	SV-M005	50	□40	WQ-08K
		SV2	SV2-M005	50	□40	WQ-08K
	SANYO DENKI	SANMOTIONR	R2□A04005	50	□40	WQ-08K
	OMRON	OMNUC G5	R88M-K05030	50	□40	WQ-08K
	FANUC CORPORATION	β is series	β is 0.2/5000	50	□40	WQ-08K