![[THK] — BNK1205K-2.6 Ball Screw (Shaft φ12, Lead 5mm)](https://img.prosourcemro.com/2026/05/001-814-1024x912.png)
Ball Screws
THK
[THK] — BNK1205K-2.6 Ball Screw (Shaft φ12, Lead 5mm)
Family ID: THK-BNK1205K-2.6
THK BNK Series Precision Ground Ball Screw, shaft diameter φ12mm, lead 5mm. 2.6 turns × 1 row ball circuit, End Cap return type. Available in G0 (zero clearance) and G2 (standard) with C5/C7 lead accuracy grade. Flanged nut with pre-machined shaft end (BNK finished type). Note: Low-noise type (K/C/U variant).
10 product codes available in this family
Product Codes & Specifications
| Product Code | Description | Brand | Spec | ||
|---|---|---|---|---|---|
| BNK1205K-2.6G0+180LC5K | THK BNK1205K-2.6, φ12 Lead5, Stroke 60mm, G0 (Zero), 5K (C5 Grade) | THK | Shaft Diameter: φ12mm | Lead: 5mm | Stroke: 60mm | Screw Length L3: 180mm | L2: 125mm | L1: 110mm | Clearance: G0 (Zero) | Nut Grade: 5K (C5 Grade) | Ball Circuit: 2.6 turns × 1 row | Return Type: End Cap | ||
| BNK1205K-2.6G2+180LC7K | THK BNK1205K-2.6, φ12 Lead5, Stroke 60mm, G2 (Standard), 5K (C5 Grade) | THK | Shaft Diameter: φ12mm | Lead: 5mm | Stroke: 60mm | Screw Length L3: 180mm | L2: 125mm | L1: 110mm | Clearance: G2 (Standard) | Nut Grade: 5K (C5 Grade) | Ball Circuit: 2.6 turns × 1 row | Return Type: End Cap | ||
| BNK1205K-2.6G0+230LC5K | THK BNK1205K-2.6, φ12 Lead5, Stroke 110mm, G0 (Zero), 5K (C5 Grade) | THK | Shaft Diameter: φ12mm | Lead: 5mm | Stroke: 110mm | Screw Length L3: 230mm | L2: 175mm | L1: 160mm | Clearance: G0 (Zero) | Nut Grade: 5K (C5 Grade) | Ball Circuit: 2.6 turns × 1 row | Return Type: End Cap | ||
| BNK1205K-2.6G2+230LC7K | THK BNK1205K-2.6, φ12 Lead5, Stroke 110mm, G2 (Standard), 5K (C5 Grade) | THK | Shaft Diameter: φ12mm | Lead: 5mm | Stroke: 110mm | Screw Length L3: 230mm | L2: 175mm | L1: 160mm | Clearance: G2 (Standard) | Nut Grade: 5K (C5 Grade) | Ball Circuit: 2.6 turns × 1 row | Return Type: End Cap | ||
| BNK1205K-2.6G0+280LC5K | THK BNK1205K-2.6, φ12 Lead5, Stroke 160mm, G0 (Zero), 5K (C5 Grade) | THK | Shaft Diameter: φ12mm | Lead: 5mm | Stroke: 160mm | Screw Length L3: 280mm | L2: 225mm | L1: 210mm | Clearance: G0 (Zero) | Nut Grade: 5K (C5 Grade) | Ball Circuit: 2.6 turns × 1 row | Return Type: End Cap | ||
| BNK1205K-2.6G2+280LC7K | THK BNK1205K-2.6, φ12 Lead5, Stroke 160mm, G2 (Standard), 5K (C5 Grade) | THK | Shaft Diameter: φ12mm | Lead: 5mm | Stroke: 160mm | Screw Length L3: 280mm | L2: 225mm | L1: 210mm | Clearance: G2 (Standard) | Nut Grade: 5K (C5 Grade) | Ball Circuit: 2.6 turns × 1 row | Return Type: End Cap | ||
| BNK1205K-2.6G0+330LC5K | THK BNK1205K-2.6, φ12 Lead5, Stroke 210mm, G0 (Zero), 5K (C5 Grade) | THK | Shaft Diameter: φ12mm | Lead: 5mm | Stroke: 210mm | Screw Length L3: 330mm | L2: 275mm | L1: 260mm | Clearance: G0 (Zero) | Nut Grade: 5K (C5 Grade) | Ball Circuit: 2.6 turns × 1 row | Return Type: End Cap | ||
| BNK1205K-2.6G2+330LC7K | THK BNK1205K-2.6, φ12 Lead5, Stroke 210mm, G2 (Standard), 5K (C5 Grade) | THK | Shaft Diameter: φ12mm | Lead: 5mm | Stroke: 210mm | Screw Length L3: 330mm | L2: 275mm | L1: 260mm | Clearance: G2 (Standard) | Nut Grade: 5K (C5 Grade) | Ball Circuit: 2.6 turns × 1 row | Return Type: End Cap | ||
| BNK1205K-2.6G0+380LC5K | THK BNK1205K-2.6, φ12 Lead5, Stroke 260mm, G0 (Zero), 5K (C5 Grade) | THK | Shaft Diameter: φ12mm | Lead: 5mm | Stroke: 260mm | Screw Length L3: 380mm | L2: 325mm | L1: 310mm | Clearance: G0 (Zero) | Nut Grade: 5K (C5 Grade) | Ball Circuit: 2.6 turns × 1 row | Return Type: End Cap | ||
| BNK1205K-2.6G2+380LC7K | THK BNK1205K-2.6, φ12 Lead5, Stroke 260mm, G2 (Standard), 5K (C5 Grade) | THK | Shaft Diameter: φ12mm | Lead: 5mm | Stroke: 260mm | Screw Length L3: 380mm | L2: 325mm | L1: 310mm | Clearance: G2 (Standard) | Nut Grade: 5K (C5 Grade) | Ball Circuit: 2.6 turns × 1 row | Return Type: End Cap |
