[THK] — KR55 LM Guide Actuator, Motor In-line (Series), Block A/B
LM Guide Actuators THK

[THK] — KR55 LM Guide Actuator, Motor In-line (Series), Block A/B

Family ID: THK-KR55-SERIAL-AB

THK KR55 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: 800–1200 mm (A-type), 680–1080 mm (B-type). See model number configuration guide A2-136.

20 product codes available in this family

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Product Codes & Specifications

Product Code Description Brand Spec
KR5520A-0800 KR55 No Cover In-line, Block×1, Stroke 800mm THK Model: KR55, Long Block ×1 (A-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (confirmed) | Stroke: 800 mm | Outer Rail Length: 980 mm | Overall Length L1: 1089 mm | C: 900 mm | G: 40 mm | Mass: 20.2 kg
KR5520A-0900 KR55 No Cover In-line, Block×1, Stroke 900mm THK Model: KR55, Long Block ×1 (A-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (confirmed) | Stroke: 900 mm | Outer Rail Length: 1080 mm | Overall Length L1: 1189 mm | C: 1050 mm | G: 15 mm | Mass: 21.9 kg
KR5520A-1000 KR55 No Cover In-line, Block×1, Stroke 1000mm THK Model: KR55, Long Block ×1 (A-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (confirmed) | Stroke: 1000 mm | Outer Rail Length: 1180 mm | Overall Length L1: 1289 mm | C: 1050 mm | G: 65 mm | Mass: 23.6 kg
KR5520A-1100 KR55 No Cover In-line, Block×1, Stroke 1100mm THK Model: KR55, Long Block ×1 (A-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (confirmed) | Stroke: 1100 mm | Outer Rail Length: 1280 mm | Overall Length L1: 1389 mm | C: 1200 mm | G: 40 mm | Mass: 25.4 kg
KR5520A-1200 KR55 No Cover In-line, Block×1, Stroke 1200mm THK Model: KR55, Long Block ×1 (A-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (confirmed) | Stroke: 1200 mm | Outer Rail Length: 1380 mm | Overall Length L1: 1489 mm | C: 1350 mm | G: 15 mm | Mass: 27.1 kg
KR5520B-0680 KR55 No Cover In-line, Block×2, Stroke 680mm THK Model: KR55, Long Block ×2 (B-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (confirmed) | Stroke: 680 mm | Outer Rail Length: 980 mm | Overall Length L1: 1089 mm | C: 900 mm | G: 40 mm | Mass: 22.0 kg
KR5520B-0780 KR55 No Cover In-line, Block×2, Stroke 780mm THK Model: KR55, Long Block ×2 (B-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (confirmed) | Stroke: 780 mm | Outer Rail Length: 1080 mm | Overall Length L1: 1189 mm | C: 1050 mm | G: 15 mm | Mass: 23.7 kg
KR5520B-0880 KR55 No Cover In-line, Block×2, Stroke 880mm THK Model: KR55, Long Block ×2 (B-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (confirmed) | Stroke: 880 mm | Outer Rail Length: 1180 mm | Overall Length L1: 1289 mm | C: 1050 mm | G: 65 mm | Mass: 25.4 kg
KR5520B-0980 KR55 No Cover In-line, Block×2, Stroke 980mm THK Model: KR55, Long Block ×2 (B-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (confirmed) | Stroke: 980 mm | Outer Rail Length: 1280 mm | Overall Length L1: 1389 mm | C: 1200 mm | G: 40 mm | Mass: 27.2 kg
KR5520B-1080 KR55 No Cover In-line, Block×2, Stroke 1080mm THK Model: KR55, Long Block ×2 (B-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (confirmed) | Stroke: 1080 mm | Outer Rail Length: 1380 mm | Overall Length L1: 1489 mm | C: 1350 mm | G: 15 mm | Mass: 28.9 kg
KR5521A-0800 KR55 With Cover In-line, Block×1, Stroke 800mm THK Model: KR55, Long Block ×1 (A-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 800 mm | Outer Rail Length: 980 mm | Overall Length L1: 1089 mm | C: 900 mm | G: 40 mm | Mass: 24.1 kg
KR5521A-0900 KR55 With Cover In-line, Block×1, Stroke 900mm THK Model: KR55, Long Block ×1 (A-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 900 mm | Outer Rail Length: 1080 mm | Overall Length L1: 1189 mm | C: 1050 mm | G: 15 mm | Mass: 25.9 kg
KR5521A-1000 KR55 With Cover In-line, Block×1, Stroke 1000mm THK Model: KR55, Long Block ×1 (A-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 1000 mm | Outer Rail Length: 1180 mm | Overall Length L1: 1289 mm | C: 1050 mm | G: 65 mm | Mass: 27.7 kg
KR5521A-1100 KR55 With Cover In-line, Block×1, Stroke 1100mm THK Model: KR55, Long Block ×1 (A-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 1100 mm | Outer Rail Length: 1280 mm | Overall Length L1: 1389 mm | C: 1200 mm | G: 40 mm | Mass: 29.6 kg
KR5521A-1200 KR55 With Cover In-line, Block×1, Stroke 1200mm THK Model: KR55, Long Block ×1 (A-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 1200 mm | Outer Rail Length: 1380 mm | Overall Length L1: 1489 mm | C: 1350 mm | G: 15 mm | Mass: 31.4 kg
KR5521B-0680 KR55 With Cover In-line, Block×2, Stroke 680mm THK Model: KR55, Long Block ×2 (B-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 680 mm | Outer Rail Length: 980 mm | Overall Length L1: 1089 mm | C: 900 mm | G: 40 mm | Mass: 27.8 kg
KR5521B-0780 KR55 With Cover In-line, Block×2, Stroke 780mm THK Model: KR55, Long Block ×2 (B-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 780 mm | Outer Rail Length: 1080 mm | Overall Length L1: 1189 mm | C: 1050 mm | G: 15 mm | Mass: 29.6 kg
KR5521B-0880 KR55 With Cover In-line, Block×2, Stroke 880mm THK Model: KR55, Long Block ×2 (B-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 880 mm | Outer Rail Length: 1180 mm | Overall Length L1: 1289 mm | C: 1050 mm | G: 65 mm | Mass: 31.4 kg
KR5521B-0980 KR55 With Cover In-line, Block×2, Stroke 980mm THK Model: KR55, Long Block ×2 (B-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 980 mm | Outer Rail Length: 1280 mm | Overall Length L1: 1389 mm | C: 1200 mm | G: 40 mm | Mass: 33.3 kg
KR5521B-1080 KR55 With Cover In-line, Block×2, Stroke 1080mm THK Model: KR55, Long Block ×2 (B-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 1080 mm | Outer Rail Length: 1380 mm | Overall Length L1: 1489 mm | C: 1350 mm | G: 15 mm | Mass: 35.1 kg

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