![[THK] — KR45H LM Guide Actuator, Motor In-line (Series), Short Block C/D](https://prosourcemro.com/wp-content/uploads/2026/05/001-937-1024x833.png)
[THK] — KR45H LM Guide Actuator, Motor In-line (Series), Short Block C/D
Family ID: THK-KR45H-SERIAL-CD
THK KR45H LM Guide Actuator, motor in-line (series) configuration. Available with or without cover. Short block ×1 (C-type) or ×2 (D-type). Integrated LM block and ball screw nut for compact design. Equal load capacity in 4 directions. Stroke range: 230–830 mm (C-type), 160–760 mm (D-type). See model number configuration guide A2-136.
28 product codes available in this family
Product Codes & Specifications
| Product Code | Description | Brand | Spec | ||
|---|---|---|---|---|---|
| KR45H20C-0230 | KR45H No Cover In-line, Short Block×1, Stroke 230mm | THK | Model: KR45H, Short Block ×1 (C-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 230 mm | Outer Rail Length: 340 mm | Overall Length L1: 440 mm | C: 200 mm | Mass: 5.0 kg | ||
| KR45H20C-0330 | KR45H No Cover In-line, Short Block×1, Stroke 330mm | THK | Model: KR45H, Short Block ×1 (C-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 330 mm | Outer Rail Length: 440 mm | Overall Length L1: 540 mm | C: 300 mm | Mass: 6.1 kg | ||
| KR45H20C-0430 | KR45H No Cover In-line, Short Block×1, Stroke 430mm | THK | Model: KR45H, Short Block ×1 (C-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 430 mm | Outer Rail Length: 540 mm | Overall Length L1: 640 mm | C: 400 mm | Mass: 7.1 kg | ||
| KR45H20C-0530 | KR45H No Cover In-line, Short Block×1, Stroke 530mm | THK | Model: KR45H, Short Block ×1 (C-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 530 mm | Outer Rail Length: 640 mm | Overall Length L1: 740 mm | C: 500 mm | Mass: 8.2 kg | ||
| KR45H20C-0630 | KR45H No Cover In-line, Short Block×1, Stroke 630mm | THK | Model: KR45H, Short Block ×1 (C-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 630 mm | Outer Rail Length: 740 mm | Overall Length L1: 840 mm | C: 600 mm | Mass: 9.3 kg | ||
| KR45H20C-0730 | KR45H No Cover In-line, Short Block×1, Stroke 730mm | THK | Model: KR45H, Short Block ×1 (C-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 730 mm | Outer Rail Length: 840 mm | Overall Length L1: 940 mm | C: 700 mm | Mass: 10.3 kg | ||
| KR45H20C-0830 | KR45H No Cover In-line, Short Block×1, Stroke 830mm | THK | Model: KR45H, Short Block ×1 (C-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 830 mm | Outer Rail Length: 940 mm | Overall Length L1: 1040 mm | C: 800 mm | Mass: 11.4 kg | ||
| KR45H20D-0160 | KR45H No Cover In-line, Short Block×2, Stroke 160mm | THK | Model: KR45H, Short Block ×2 (D-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 160 mm | Outer Rail Length: 340 mm | Overall Length L1: 440 mm | C: 200 mm | Mass: 5.6 kg | ||
| KR45H20D-0260 | KR45H No Cover In-line, Short Block×2, Stroke 260mm | THK | Model: KR45H, Short Block ×2 (D-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 260 mm | Outer Rail Length: 440 mm | Overall Length L1: 540 mm | C: 300 mm | Mass: 6.7 kg | ||
| KR45H20D-0360 | KR45H No Cover In-line, Short Block×2, Stroke 360mm | THK | Model: KR45H, Short Block ×2 (D-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 360 mm | Outer Rail Length: 540 mm | Overall Length L1: 640 mm | C: 400 mm | Mass: 7.7 kg | ||
| KR45H20D-0460 | KR45H No Cover In-line, Short Block×2, Stroke 460mm | THK | Model: KR45H, Short Block ×2 (D-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 460 mm | Outer Rail Length: 640 mm | Overall Length L1: 740 mm | C: 500 mm | Mass: 8.8 kg | ||
| KR45H20D-0560 | KR45H No Cover In-line, Short Block×2, Stroke 560mm | THK | Model: KR45H, Short Block ×2 (D-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 560 mm | Outer Rail Length: 740 mm | Overall Length L1: 840 mm | C: 600 mm | Mass: 9.9 kg | ||
| KR45H20D-0660 | KR45H No Cover In-line, Short Block×2, Stroke 660mm | THK | Model: KR45H, Short Block ×2 (D-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 660 mm | Outer Rail Length: 840 mm | Overall Length L1: 940 mm | C: 700 mm | Mass: 10.9 kg | ||
| KR45H20D-0760 | KR45H No Cover In-line, Short Block×2, Stroke 760mm | THK | Model: KR45H, Short Block ×2 (D-type) | Cover: No Cover | Motor Mounting: In-line (Series) | Cover Code: 20 (estimated ⚠️) | Stroke: 760 mm | Outer Rail Length: 940 mm | Overall Length L1: 1040 mm | C: 800 mm | Mass: 12.0 kg | ||
| KR45H21C-0230 | KR45H With Cover In-line, Short Block×1, Stroke 230mm | THK | Model: KR45H, Short Block ×1 (C-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 230 mm | Outer Rail Length: 340 mm | Overall Length L1: 440 mm | C: 200 mm | Mass: 5.8 kg | ||
| KR45H21C-0330 | KR45H With Cover In-line, Short Block×1, Stroke 330mm | THK | Model: KR45H, Short Block ×1 (C-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 330 mm | Outer Rail Length: 440 mm | Overall Length L1: 540 mm | C: 300 mm | Mass: 7.0 kg | ||
| KR45H21C-0430 | KR45H With Cover In-line, Short Block×1, Stroke 430mm | THK | Model: KR45H, Short Block ×1 (C-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 430 mm | Outer Rail Length: 540 mm | Overall Length L1: 640 mm | C: 400 mm | Mass: 8.1 kg | ||
| KR45H21C-0530 | KR45H With Cover In-line, Short Block×1, Stroke 530mm | THK | Model: KR45H, Short Block ×1 (C-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 530 mm | Outer Rail Length: 640 mm | Overall Length L1: 740 mm | C: 500 mm | Mass: 9.3 kg | ||
| KR45H21C-0630 | KR45H With Cover In-line, Short Block×1, Stroke 630mm | THK | Model: KR45H, Short Block ×1 (C-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 630 mm | Outer Rail Length: 740 mm | Overall Length L1: 840 mm | C: 600 mm | Mass: 10.4 kg | ||
| KR45H21C-0730 | KR45H With Cover In-line, Short Block×1, Stroke 730mm | THK | Model: KR45H, Short Block ×1 (C-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 730 mm | Outer Rail Length: 840 mm | Overall Length L1: 940 mm | C: 700 mm | Mass: 11.6 kg | ||
| KR45H21C-0830 | KR45H With Cover In-line, Short Block×1, Stroke 830mm | THK | Model: KR45H, Short Block ×1 (C-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 830 mm | Outer Rail Length: 940 mm | Overall Length L1: 1040 mm | C: 800 mm | Mass: 12.7 kg | ||
| KR45H21D-0160 | KR45H With Cover In-line, Short Block×2, Stroke 160mm | THK | Model: KR45H, Short Block ×2 (D-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 160 mm | Outer Rail Length: 340 mm | Overall Length L1: 440 mm | C: 200 mm | Mass: 6.6 kg | ||
| KR45H21D-0260 | KR45H With Cover In-line, Short Block×2, Stroke 260mm | THK | Model: KR45H, Short Block ×2 (D-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 260 mm | Outer Rail Length: 440 mm | Overall Length L1: 540 mm | C: 300 mm | Mass: 7.8 kg | ||
| KR45H21D-0360 | KR45H With Cover In-line, Short Block×2, Stroke 360mm | THK | Model: KR45H, Short Block ×2 (D-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 360 mm | Outer Rail Length: 540 mm | Overall Length L1: 640 mm | C: 400 mm | Mass: 8.9 kg | ||
| KR45H21D-0460 | KR45H With Cover In-line, Short Block×2, Stroke 460mm | THK | Model: KR45H, Short Block ×2 (D-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 460 mm | Outer Rail Length: 640 mm | Overall Length L1: 740 mm | C: 500 mm | Mass: 10.1 kg | ||
| KR45H21D-0560 | KR45H With Cover In-line, Short Block×2, Stroke 560mm | THK | Model: KR45H, Short Block ×2 (D-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 560 mm | Outer Rail Length: 740 mm | Overall Length L1: 840 mm | C: 600 mm | Mass: 11.2 kg | ||
| KR45H21D-0660 | KR45H With Cover In-line, Short Block×2, Stroke 660mm | THK | Model: KR45H, Short Block ×2 (D-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 660 mm | Outer Rail Length: 840 mm | Overall Length L1: 940 mm | C: 700 mm | Mass: 12.4 kg | ||
| KR45H21D-0760 | KR45H With Cover In-line, Short Block×2, Stroke 760mm | THK | Model: KR45H, Short Block ×2 (D-type) | Cover: With Cover | Motor Mounting: In-line (Series) | Cover Code: 21 (estimated ⚠️) | Stroke: 760 mm | Outer Rail Length: 940 mm | Overall Length L1: 1040 mm | C: 800 mm | Mass: 13.5 kg |
