![[THK] — BNK2520K-3.6 Ball Screw (Shaft φ25, Lead 20mm)](https://prosourcemro.com/wp-content/uploads/2026/05/001-827-1024x847.png)
Ball Screws
THK
[THK] — BNK2520K-3.6 Ball Screw (Shaft φ25, Lead 20mm)
Family ID: THK-BNK2520K-3.6
THK BNK Series Precision Ground Ball Screw, shaft diameter φ25mm, lead 20mm. 1.8 turns × 2 rows 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 variant).
14 product codes available in this family
Product Codes & Specifications
| Product Code | Description | Brand | Spec | ||
|---|---|---|---|---|---|
| BNK2520K-3.6G0+751LC5K | THK BNK2520K-3.6, φ25 Lead20, Stroke 500mm, G0 (Zero), 5K (C5 Grade) | THK | Shaft Diameter: φ25mm | Lead: 20mm | Stroke: 500mm | Screw Length L3: 751mm | L2: 640mm | L1: 610mm | Clearance: G0 (Zero) | Nut Grade: 5K (C5 Grade) | Ball Circuit: 1.8 turns × 2 rows | Return Type: End Cap | ||
| BNK2520K-3.6G2+751LC7K | THK BNK2520K-3.6, φ25 Lead20, Stroke 500mm, G2 (Standard), 7K (C7 Grade) | THK | Shaft Diameter: φ25mm | Lead: 20mm | Stroke: 500mm | Screw Length L3: 751mm | L2: 640mm | L1: 610mm | Clearance: G2 (Standard) | Nut Grade: 7K (C7 Grade) | Ball Circuit: 1.8 turns × 2 rows | Return Type: End Cap | ||
| BNK2520K-3.6G0+851LC5K | THK BNK2520K-3.6, φ25 Lead20, Stroke 600mm, G0 (Zero), 5K (C5 Grade) | THK | Shaft Diameter: φ25mm | Lead: 20mm | Stroke: 600mm | Screw Length L3: 851mm | L2: 740mm | L1: 710mm | Clearance: G0 (Zero) | Nut Grade: 5K (C5 Grade) | Ball Circuit: 1.8 turns × 2 rows | Return Type: End Cap | ||
| BNK2520K-3.6G2+851LC7K | THK BNK2520K-3.6, φ25 Lead20, Stroke 600mm, G2 (Standard), 7K (C7 Grade) | THK | Shaft Diameter: φ25mm | Lead: 20mm | Stroke: 600mm | Screw Length L3: 851mm | L2: 740mm | L1: 710mm | Clearance: G2 (Standard) | Nut Grade: 7K (C7 Grade) | Ball Circuit: 1.8 turns × 2 rows | Return Type: End Cap | ||
| BNK2520K-3.6G0+1051LC5K | THK BNK2520K-3.6, φ25 Lead20, Stroke 800mm, G0 (Zero), 5K (C5 Grade) | THK | Shaft Diameter: φ25mm | Lead: 20mm | Stroke: 800mm | Screw Length L3: 1051mm | L2: 940mm | L1: 910mm | Clearance: G0 (Zero) | Nut Grade: 5K (C5 Grade) | Ball Circuit: 1.8 turns × 2 rows | Return Type: End Cap | ||
| BNK2520K-3.6G2+1051LC7K | THK BNK2520K-3.6, φ25 Lead20, Stroke 800mm, G2 (Standard), 7K (C7 Grade) | THK | Shaft Diameter: φ25mm | Lead: 20mm | Stroke: 800mm | Screw Length L3: 1051mm | L2: 940mm | L1: 910mm | Clearance: G2 (Standard) | Nut Grade: 7K (C7 Grade) | Ball Circuit: 1.8 turns × 2 rows | Return Type: End Cap | ||
| BNK2520K-3.6G0+1251LC5K | THK BNK2520K-3.6, φ25 Lead20, Stroke 1000mm, G0 (Zero), 5K (C5 Grade) | THK | Shaft Diameter: φ25mm | Lead: 20mm | Stroke: 1000mm | Screw Length L3: 1251mm | L2: 1140mm | L1: 1110mm | Clearance: G0 (Zero) | Nut Grade: 5K (C5 Grade) | Ball Circuit: 1.8 turns × 2 rows | Return Type: End Cap | ||
| BNK2520K-3.6G2+1251LC7K | THK BNK2520K-3.6, φ25 Lead20, Stroke 1000mm, G2 (Standard), 7K (C7 Grade) | THK | Shaft Diameter: φ25mm | Lead: 20mm | Stroke: 1000mm | Screw Length L3: 1251mm | L2: 1140mm | L1: 1110mm | Clearance: G2 (Standard) | Nut Grade: 7K (C7 Grade) | Ball Circuit: 1.8 turns × 2 rows | Return Type: End Cap | ||
| BNK2520K-3.6G0+1451LC5K | THK BNK2520K-3.6, φ25 Lead20, Stroke 1200mm, G0 (Zero), 5K (C5 Grade) | THK | Shaft Diameter: φ25mm | Lead: 20mm | Stroke: 1200mm | Screw Length L3: 1451mm | L2: 1340mm | L1: 1310mm | Clearance: G0 (Zero) | Nut Grade: 5K (C5 Grade) | Ball Circuit: 1.8 turns × 2 rows | Return Type: End Cap | ||
| BNK2520K-3.6G2+1451LC7K | THK BNK2520K-3.6, φ25 Lead20, Stroke 1200mm, G2 (Standard), 7K (C7 Grade) | THK | Shaft Diameter: φ25mm | Lead: 20mm | Stroke: 1200mm | Screw Length L3: 1451mm | L2: 1340mm | L1: 1310mm | Clearance: G2 (Standard) | Nut Grade: 7K (C7 Grade) | Ball Circuit: 1.8 turns × 2 rows | Return Type: End Cap | ||
| BNK2520K-3.6G0+1651LC5K | THK BNK2520K-3.6, φ25 Lead20, Stroke 1400mm, G0 (Zero), 5K (C5 Grade) | THK | Shaft Diameter: φ25mm | Lead: 20mm | Stroke: 1400mm | Screw Length L3: 1651mm | L2: 1540mm | L1: 1510mm | Clearance: G0 (Zero) | Nut Grade: 5K (C5 Grade) | Ball Circuit: 1.8 turns × 2 rows | Return Type: End Cap | ||
| BNK2520K-3.6G2+1651LC7K | THK BNK2520K-3.6, φ25 Lead20, Stroke 1400mm, G2 (Standard), 7K (C7 Grade) | THK | Shaft Diameter: φ25mm | Lead: 20mm | Stroke: 1400mm | Screw Length L3: 1651mm | L2: 1540mm | L1: 1510mm | Clearance: G2 (Standard) | Nut Grade: 7K (C7 Grade) | Ball Circuit: 1.8 turns × 2 rows | Return Type: End Cap | ||
| BNK2520K-3.6G0+1851LC5K | THK BNK2520K-3.6, φ25 Lead20, Stroke 1600mm, G0 (Zero), 5K (C5 Grade) | THK | Shaft Diameter: φ25mm | Lead: 20mm | Stroke: 1600mm | Screw Length L3: 1851mm | L2: 1740mm | L1: 1710mm | Clearance: G0 (Zero) | Nut Grade: 5K (C5 Grade) | Ball Circuit: 1.8 turns × 2 rows | Return Type: End Cap | ||
| BNK2520K-3.6G2+1851LC7K | THK BNK2520K-3.6, φ25 Lead20, Stroke 1600mm, G2 (Standard), 7K (C7 Grade) | THK | Shaft Diameter: φ25mm | Lead: 20mm | Stroke: 1600mm | Screw Length L3: 1851mm | L2: 1740mm | L1: 1710mm | Clearance: G2 (Standard) | Nut Grade: 7K (C7 Grade) | Ball Circuit: 1.8 turns × 2 rows | Return Type: End Cap |
