Catalogues - caged-ball-lm-guide-actuator-model-skr

Catalogue Caged Ball LM Guide Actuator Model SKR

www.thk.com

Page

/ 24

Contact the
Manufacturer

Where to buy
this product ?

/ 24

See other catalogues for THK

Text version of the page

/-N

6. High Speed

Through the use of Caged Ball Technology, the SKR-type is compatible with the latest high-speed rotational AC servo-motors (6000 min^-1), achieving higher speeds than the conventional KR-type. The ball screw lead settings of the conventional KR33 type were 6 mm and 10 mm. To achieve a higher feed rate, a 20 mm ball screw lead has been added to the new SKR 33 series. V____J

Table 3 Maximum Traverse Rate


Model	Ball Screw's	LM Rail Length	Maximum Travel Speed (mm/sec)
Model	Lead (mm)	(mm)	Long Block	Short Block
		150	600
		200	600
		300	600
	06	400	600
		500	600
		600	552	530
		700	393	364
		150	1,000
		200	1,000
		300	1,000
SKR33	10	400	1,000
		500	1,000
		600	920	839
		700	656	607
		150	2,000	—
		200	2,000	—
		300	2,000	—
	20	400	2,000	—
		500	2,000	—
		600	1,780	—
		700	1,276	—
		340	1,000 —
		440	1,000
	10	540	1,000
	10	640	1,026	914
		740	736	667
SKR46		940	431	400
SKR46		340	2,000
		440	2,000
	20	540	2,000
	20	640	1,988	1,774
		740	1,433	1,300
		940	845	784

The maximum travel speed of the SKR-type is limited by the critical speed of the ball screw shaft, regardless of the maximum rotational speed (6000 min^-1) of the motor. Please keep this in mind when using the SKR-type in high-speed applications.

Please contact THK if you are considering using an SKR model at a rate higher than the maximum travel speed noted above.

3 TfïnlK