Catalogue - LM Guide Actuator KR - THK - (Version JPG)

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Linear ball bearing, Lead screw, Spherical plain bearing, Rod end, Linear module

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The accuracy of the Model KR is divided into three categories: normal grade (no symbol), high accuracy grade (H) and precision grade (P). The following table shows the standards of each of these accuracies.

(Figure 8-1) Normal Grade (no symbol)

(Table 8-2) High Accuracy Grade (H)

Unit: mm


Model	LM Rail Length	Repeat Positioning Accuracy	Positioning Accuracy	Travel Parallelism	Backlash	Starting Torque (Ncm)
KR15	75 100 125 150 175 200	± 0.004	0.04	0.02	0.01	0.4
KR20	100 150 200	± 0.005	0.06	0.025	0.01	0.5
KR26	150 200 250 300	± 0.005	0.06	0.025	0.01	1.5
KR30H	150 200 300 400	± 0.005	0.06	0.025	0.02	7
KR30H	500 600	± 0.005	0.1	0.035	0.02	7
KR33	150 200 300 400	± 0.005	0.06	0.025	0.02	7
KR33	500 600	± 0.005	0.1	0.035	0.02	7
KR45H	340 440 540 640	± 0.005	0.1	0.035	0.02	10
	740		0.12	0.04
	840 940		0.15	0.05
KR46	340 440 540 640	± 0.005	0.1	0.035	0.02	10
	740		0.12	0.04
	940		0.15	0.05
KR55	980 1080	± 0.005	0.18	0.05	0.05	12
KR55	1180 1280 1380	± 0.005	0.25	0.05	0.05	12
KR65	980	± 0.008	0.18	0.05	0.05	12
	1180 1380		0.2	0.05		12
	1680		0.28	0.055		15


Model	LM Rail Length	Repeat Positioning Accuracy	Positioning Accuracy	Travel Parallelism	Backlash	Starting Torque (Ncm)
KR20	100 150 200	± 0.01	Not stipulated	Not stipulated	0.02	0.5
KR26	150 200 250 300	± 0.01	Not stipulated	Not stipulated	0.02	1.5
KR30H	150 200 300 400 500 600	± 0.01	Not stipulated	Not stipulated	0.02	7
KR33	150 200 300 400 500 600	± 0.01	Not stipulated	Not stipulated	0.02	7
KR45H	340 440 540 640 740 840 940	± 0.01	Not stipulated	Not stipulated	0.02	10
KR46	340 440 540 640 740 940	± 0.01	Not stipulated	Not stipulated	0.02	10
KR55	980 1080 1180 1280 1380	± 0.01	Not stipulated	Not stipulated	0.05	12
KR65	980 1180 1380	± 0.01	Not stipulated	Not stipulated	0.05	12
KR65	1680	± 0.012	Not stipulated	Not stipulated	0.05	15
(Table 8-3) Precision Grade (P) ^v ' ^v ' Unit: mm
Model	LM Rail Length	Repeat Positioning Accuracy	Positioning Accuracy	Travel Parallelism	Backlash	Starting Torque (Ncm)
KR15	75 100 125 150 175	± 0.003	0.02	0.01	0.002	0.8
KR20	200 100 150 200	± 0.003	0.02	0.01	0.003	1.2
KR26	150 200 250 300	± 0.003	0.02	0.01	0.003	4
KR30H	150 200 300 400	± 0.003	0.02	0.01	0.003	15
KR30H	500 600	± 0.003	0.025	0.015	0.003	15
KR33	150 200 300 400	± 0.003	0.02	0.01	0.003	15
KR33	500 600	± 0.003	0.025	0.015	0.003	15
KR45H	340 440 540	± 0.003	0.025	0.015	0.003	15
	640		0.025	0.015		17
	740		0.03	0.02		17
KR46	340 440 540	± 0.003	0.025	0.015	0.003	15
	640		0.025	0.015		17
	740		0.03	0.02		17
KR55	980 1080	± 0.005	0.035	0.025	0.003	17
KR55	1180	± 0.005	0.04	0.03	0.003	20
KR65	980 1180	± 0.005	0.035	0.025	0.005	20
KR65	1380	± 0.005	0.04	0.03	0.005	22

(Note) Evaluation methods conform to THK criteria.

(Note) The starting torque is the value obtained when lithium-based grease No.2 is used with the product.

Note, however, that the starting value becomes the value when THK AFA grease is used on the KR20 and KR26 types or the value when THK AFF grease is used on the KR15 type.

(Note) When high-viscosity greases such as vacuum grease or grease for clean rooms is used, there are cases where the criteria value of the starting torque is exceeded. In such a case, exercise care in selecting the motor.

17 ^CÜU=flK

LM Guide Actuator KR - THK - #18

Linear ball bearing, Lead screw, Spherical plain bearing, Rod end, Linear module