[THK] — KR46 LM Guide Actuator, Motor In-line (Series), Block A/B
LM Guide Actuators THK

[THK] — KR46 LM Guide Actuator, Motor In-line (Series), Block A/B

Family ID: THK-KR46-SERIAL-AB

THK KR46 LM Guide Actuator, motor in-line (series) configuration. Available with or without cover. Long block ×1 (A-type) or ×2 (B-type). Integrated LM block and ball screw nut for compact design. Equal load capacity in 4 directions. Stroke range: 190–790 mm (A-type), 80–680 mm (B-type). See model number configuration guide A2-136.

28 product codes available in this family

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Product Codes & Specifications

Product Code Description Brand Spec
KR4620A-0190 KR46 No Cover In-line, Block×1, Stroke 190mm THK Model: KR46, Long Block ×1 (A-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 190 mm | Outer Rail Length: 340 mm | Overall Length L1: 440.5 mm | C: 200 mm | Mass: 6.6 kg
KR4620A-0290 KR46 No Cover In-line, Block×1, Stroke 290mm THK Model: KR46, Long Block ×1 (A-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 290 mm | Outer Rail Length: 440 mm | Overall Length L1: 540.5 mm | C: 300 mm | Mass: 8.0 kg
KR4620A-0390 KR46 No Cover In-line, Block×1, Stroke 390mm THK Model: KR46, Long Block ×1 (A-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 390 mm | Outer Rail Length: 540 mm | Overall Length L1: 640.5 mm | C: 400 mm | Mass: 9.4 kg
KR4620A-0490 KR46 No Cover In-line, Block×1, Stroke 490mm THK Model: KR46, Long Block ×1 (A-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 490 mm | Outer Rail Length: 640 mm | Overall Length L1: 740.5 mm | C: 500 mm | Mass: 10.8 kg
KR4620A-0590 KR46 No Cover In-line, Block×1, Stroke 590mm THK Model: KR46, Long Block ×1 (A-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 590 mm | Outer Rail Length: 740 mm | Overall Length L1: 840.5 mm | C: 600 mm | Mass: 12.2 kg
KR4620A-0690 KR46 No Cover In-line, Block×1, Stroke 690mm THK Model: KR46, Long Block ×1 (A-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 690 mm | Outer Rail Length: 840 mm | Overall Length L1: 940.5 mm | C: 700 mm | Mass: 13.6 kg
KR4620A-0790 KR46 No Cover In-line, Block×1, Stroke 790mm THK Model: KR46, Long Block ×1 (A-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 790 mm | Outer Rail Length: 940 mm | Overall Length L1: 1040.5 mm | C: 800 mm | Mass: 15.0 kg
KR4620B-0080 KR46 No Cover In-line, Block×2, Stroke 80mm THK Model: KR46, Long Block ×2 (B-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 80 mm | Outer Rail Length: 340 mm | Overall Length L1: 440.5 mm | C: 200 mm | Mass: 7.6 kg
KR4620B-0180 KR46 No Cover In-line, Block×2, Stroke 180mm THK Model: KR46, Long Block ×2 (B-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 180 mm | Outer Rail Length: 440 mm | Overall Length L1: 540.5 mm | C: 300 mm | Mass: 9.0 kg
KR4620B-0280 KR46 No Cover In-line, Block×2, Stroke 280mm THK Model: KR46, Long Block ×2 (B-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 280 mm | Outer Rail Length: 540 mm | Overall Length L1: 640.5 mm | C: 400 mm | Mass: 10.4 kg
KR4620B-0380 KR46 No Cover In-line, Block×2, Stroke 380mm THK Model: KR46, Long Block ×2 (B-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 380 mm | Outer Rail Length: 640 mm | Overall Length L1: 740.5 mm | C: 500 mm | Mass: 11.8 kg
KR4620B-0480 KR46 No Cover In-line, Block×2, Stroke 480mm THK Model: KR46, Long Block ×2 (B-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 480 mm | Outer Rail Length: 740 mm | Overall Length L1: 840.5 mm | C: 600 mm | Mass: 13.2 kg
KR4620B-0580 KR46 No Cover In-line, Block×2, Stroke 580mm THK Model: KR46, Long Block ×2 (B-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 580 mm | Outer Rail Length: 840 mm | Overall Length L1: 940.5 mm | C: 700 mm | Mass: 14.6 kg
KR4620B-0680 KR46 No Cover In-line, Block×2, Stroke 680mm THK Model: KR46, Long Block ×2 (B-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 680 mm | Outer Rail Length: 940 mm | Overall Length L1: 1040.5 mm | C: 800 mm | Mass: 16.0 kg
KR4621A-0190 KR46 With Cover In-line, Block×1, Stroke 190mm THK Model: KR46, Long Block ×1 (A-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 190 mm | Outer Rail Length: 340 mm | Overall Length L1: 440.5 mm | C: 200 mm | Mass: 7.5 kg
KR4621A-0290 KR46 With Cover In-line, Block×1, Stroke 290mm THK Model: KR46, Long Block ×1 (A-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 290 mm | Outer Rail Length: 440 mm | Overall Length L1: 540.5 mm | C: 300 mm | Mass: 9.0 kg
KR4621A-0390 KR46 With Cover In-line, Block×1, Stroke 390mm THK Model: KR46, Long Block ×1 (A-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 390 mm | Outer Rail Length: 540 mm | Overall Length L1: 640.5 mm | C: 400 mm | Mass: 10.5 kg
KR4621A-0490 KR46 With Cover In-line, Block×1, Stroke 490mm THK Model: KR46, Long Block ×1 (A-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 490 mm | Outer Rail Length: 640 mm | Overall Length L1: 740.5 mm | C: 500 mm | Mass: 12.0 kg
KR4621A-0590 KR46 With Cover In-line, Block×1, Stroke 590mm THK Model: KR46, Long Block ×1 (A-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 590 mm | Outer Rail Length: 740 mm | Overall Length L1: 840.5 mm | C: 600 mm | Mass: 13.5 kg
KR4621A-0690 KR46 With Cover In-line, Block×1, Stroke 690mm THK Model: KR46, Long Block ×1 (A-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 690 mm | Outer Rail Length: 840 mm | Overall Length L1: 940.5 mm | C: 700 mm | Mass: 14.9 kg
KR4621A-0790 KR46 With Cover In-line, Block×1, Stroke 790mm THK Model: KR46, Long Block ×1 (A-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 790 mm | Outer Rail Length: 940 mm | Overall Length L1: 1040.5 mm | C: 800 mm | Mass: 16.4 kg
KR4621B-0080 KR46 With Cover In-line, Block×2, Stroke 80mm THK Model: KR46, Long Block ×2 (B-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 80 mm | Outer Rail Length: 340 mm | Overall Length L1: 440.5 mm | C: 200 mm | Mass: 8.9 kg
KR4621B-0180 KR46 With Cover In-line, Block×2, Stroke 180mm THK Model: KR46, Long Block ×2 (B-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 180 mm | Outer Rail Length: 440 mm | Overall Length L1: 540.5 mm | C: 300 mm | Mass: 10.4 kg
KR4621B-0280 KR46 With Cover In-line, Block×2, Stroke 280mm THK Model: KR46, Long Block ×2 (B-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 280 mm | Outer Rail Length: 540 mm | Overall Length L1: 640.5 mm | C: 400 mm | Mass: 11.9 kg
KR4621B-0380 KR46 With Cover In-line, Block×2, Stroke 380mm THK Model: KR46, Long Block ×2 (B-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 380 mm | Outer Rail Length: 640 mm | Overall Length L1: 740.5 mm | C: 500 mm | Mass: 13.4 kg
KR4621B-0480 KR46 With Cover In-line, Block×2, Stroke 480mm THK Model: KR46, Long Block ×2 (B-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 480 mm | Outer Rail Length: 740 mm | Overall Length L1: 840.5 mm | C: 600 mm | Mass: 14.9 kg
KR4621B-0580 KR46 With Cover In-line, Block×2, Stroke 580mm THK Model: KR46, Long Block ×2 (B-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 580 mm | Outer Rail Length: 840 mm | Overall Length L1: 940.5 mm | C: 700 mm | Mass: 16.3 kg
KR4621B-0680 KR46 With Cover In-line, Block×2, Stroke 680mm THK Model: KR46, Long Block ×2 (B-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 680 mm | Outer Rail Length: 940 mm | Overall Length L1: 1040.5 mm | C: 800 mm | Mass: 17.8 kg

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