• THK BNK1520K-3 Ball Screw (Shaft φ15, Lead 20mm)
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THK BNK1520K-3 Ball Screw (Shaft φ15, Lead 20mm)

THK BNK1520K-3 Ball Screw (Shaft φ15, Lead 20mm)

THK BNK Series Precision Ground Ball Screw, shaft diameter φ15mm, lead 20mm. 1.5 turns × 2 rows ball circuit, End Cap return type.

Key features

  • 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)

Specifications

Shaft Diameter φ15mm
Lead 20mm
Ball Circuit 1.5 turns × 2 rows
Return Type End Cap
BNK1520K-3G0+321LC5K THK BNK1520K-3, φ15 Lead20, Stroke 150mm, G0 (Zero), 5K (C5 Grade) | Shaft Diameter: φ15mm | Lead: 20mm | Stroke: 150mm | Screw Length L3: 321mm | L2: 254mm | L1: 236mm | Clearance: G0 (Zero) | Nut Grade: 5K (C5 Grade) | Ball Circuit: 1.5 turns × 2 rows | Return Type: End Cap
BNK1520K-3G2+321LC7K THK BNK1520K-3, φ15 Lead20, Stroke 150mm, G2 (Standard), 7K (C7 Grade) | Shaft Diameter: φ15mm | Lead: 20mm | Stroke: 150mm | Screw Length L3: 321mm | L2: 254mm | L1: 236mm | Clearance: G2 (Standard) | Nut Grade: 7K (C7 Grade) | Ball Circuit: 1.5 turns × 2 rows | Return Type: End Cap
BNK1520K-3G0+371LC5K THK BNK1520K-3, φ15 Lead20, Stroke 200mm, G0 (Zero), 5K (C5 Grade) | Shaft Diameter: φ15mm | Lead: 20mm | Stroke: 200mm | Screw Length L3: 371mm | L2: 304mm | L1: 286mm | Clearance: G0 (Zero) | Nut Grade: 5K (C5 Grade) | Ball Circuit: 1.5 turns × 2 rows | Return Type: End Cap
BNK1520K-3G2+371LC7K THK BNK1520K-3, φ15 Lead20, Stroke 200mm, G2 (Standard), 7K (C7 Grade) | Shaft Diameter: φ15mm | Lead: 20mm | Stroke: 200mm | Screw Length L3: 371mm | L2: 304mm | L1: 286mm | Clearance: G2 (Standard) | Nut Grade: 7K (C7 Grade) | Ball Circuit: 1.5 turns × 2 rows | Return Type: End Cap
BNK1520K-3G0+421LC5K THK BNK1520K-3, φ15 Lead20, Stroke 250mm, G0 (Zero), 5K (C5 Grade) | Shaft Diameter: φ15mm | Lead: 20mm | Stroke: 250mm | Screw Length L3: 421mm | L2: 354mm | L1: 336mm | Clearance: G0 (Zero) | Nut Grade: 5K (C5 Grade) | Ball Circuit: 1.5 turns × 2 rows | Return Type: End Cap
BNK1520K-3G2+421LC7K THK BNK1520K-3, φ15 Lead20, Stroke 250mm, G2 (Standard), 7K (C7 Grade) | Shaft Diameter: φ15mm | Lead: 20mm | Stroke: 250mm | Screw Length L3: 421mm | L2: 354mm | L1: 336mm | Clearance: G2 (Standard) | Nut Grade: 7K (C7 Grade) | Ball Circuit: 1.5 turns × 2 rows | Return Type: End Cap
BNK1520K-3G0+471LC5K THK BNK1520K-3, φ15 Lead20, Stroke 300mm, G0 (Zero), 5K (C5 Grade) | Shaft Diameter: φ15mm | Lead: 20mm | Stroke: 300mm | Screw Length L3: 471mm | L2: 404mm | L1: 386mm | Clearance: G0 (Zero) | Nut Grade: 5K (C5 Grade) | Ball Circuit: 1.5 turns × 2 rows | Return Type: End Cap
BNK1520K-3G2+471LC7K THK BNK1520K-3, φ15 Lead20, Stroke 300mm, G2 (Standard), 7K (C7 Grade) | Shaft Diameter: φ15mm | Lead: 20mm | Stroke: 300mm | Screw Length L3: 471mm | L2: 404mm | L1: 386mm | Clearance: G2 (Standard) | Nut Grade: 7K (C7 Grade) | Ball Circuit: 1.5 turns × 2 rows | Return Type: End Cap
BNK1520K-3G0+521LC5K THK BNK1520K-3, φ15 Lead20, Stroke 350mm, G0 (Zero), 5K (C5 Grade) | Shaft Diameter: φ15mm | Lead: 20mm | Stroke: 350mm | Screw Length L3: 521mm | L2: 454mm | L1: 436mm | Clearance: G0 (Zero) | Nut Grade: 5K (C5 Grade) | Ball Circuit: 1.5 turns × 2 rows | Return Type: End Cap
BNK1520K-3G2+521LC7K THK BNK1520K-3, φ15 Lead20, Stroke 350mm, G2 (Standard), 7K (C7 Grade) | Shaft Diameter: φ15mm | Lead: 20mm | Stroke: 350mm | Screw Length L3: 521mm | L2: 454mm | L1: 436mm | Clearance: G2 (Standard) | Nut Grade: 7K (C7 Grade) | Ball Circuit: 1.5 turns × 2 rows | Return Type: End Cap
BNK1520K-3G0+571LC5K THK BNK1520K-3, φ15 Lead20, Stroke 400mm, G0 (Zero), 5K (C5 Grade) | Shaft Diameter: φ15mm | Lead: 20mm | Stroke: 400mm | Screw Length L3: 571mm | L2: 504mm | L1: 486mm | Clearance: G0 (Zero) | Nut Grade: 5K (C5 Grade) | Ball Circuit: 1.5 turns × 2 rows | Return Type: End Cap
BNK1520K-3G2+571LC7K THK BNK1520K-3, φ15 Lead20, Stroke 400mm, G2 (Standard), 7K (C7 Grade) | Shaft Diameter: φ15mm | Lead: 20mm | Stroke: 400mm | Screw Length L3: 571mm | L2: 504mm | L1: 486mm | Clearance: G2 (Standard) | Nut Grade: 7K (C7 Grade) | Ball Circuit: 1.5 turns × 2 rows | Return Type: End Cap
BNK1520K-3G0+621LC5K THK BNK1520K-3, φ15 Lead20, Stroke 450mm, G0 (Zero), 5K (C5 Grade) | Shaft Diameter: φ15mm | Lead: 20mm | Stroke: 450mm | Screw Length L3: 621mm | L2: 554mm | L1: 536mm | Clearance: G0 (Zero) | Nut Grade: 5K (C5 Grade) | Ball Circuit: 1.5 turns × 2 rows | Return Type: End Cap
BNK1520K-3G2+621LC7K THK BNK1520K-3, φ15 Lead20, Stroke 450mm, G2 (Standard), 7K (C7 Grade) | Shaft Diameter: φ15mm | Lead: 20mm | Stroke: 450mm | Screw Length L3: 621mm | L2: 554mm | L1: 536mm | Clearance: G2 (Standard) | Nut Grade: 7K (C7 Grade) | Ball Circuit: 1.5 turns × 2 rows | Return Type: End Cap
BNK1520K-3G0+671LC5K THK BNK1520K-3, φ15 Lead20, Stroke 500mm, G0 (Zero), 5K (C5 Grade) | Shaft Diameter: φ15mm | Lead: 20mm | Stroke: 500mm | Screw Length L3: 671mm | L2: 604mm | L1: 586mm | Clearance: G0 (Zero) | Nut Grade: 5K (C5 Grade) | Ball Circuit: 1.5 turns × 2 rows | Return Type: End Cap
BNK1520K-3G2+671LC7K THK BNK1520K-3, φ15 Lead20, Stroke 500mm, G2 (Standard), 7K (C7 Grade) | Shaft Diameter: φ15mm | Lead: 20mm | Stroke: 500mm | Screw Length L3: 671mm | L2: 604mm | L1: 586mm | Clearance: G2 (Standard) | Nut Grade: 7K (C7 Grade) | Ball Circuit: 1.5 turns × 2 rows | Return Type: End Cap
BNK1520K-3G0+721LC5K THK BNK1520K-3, φ15 Lead20, Stroke 550mm, G0 (Zero), 5K (C5 Grade) | Shaft Diameter: φ15mm | Lead: 20mm | Stroke: 550mm | Screw Length L3: 721mm | L2: 654mm | L1: 636mm | Clearance: G0 (Zero) | Nut Grade: 5K (C5 Grade) | Ball Circuit: 1.5 turns × 2 rows | Return Type: End Cap
BNK1520K-3G2+721LC7K THK BNK1520K-3, φ15 Lead20, Stroke 550mm, G2 (Standard), 7K (C7 Grade) | Shaft Diameter: φ15mm | Lead: 20mm | Stroke: 550mm | Screw Length L3: 721mm | L2: 654mm | L1: 636mm | Clearance: G2 (Standard) | Nut Grade: 7K (C7 Grade) | Ball Circuit: 1.5 turns × 2 rows | Return Type: End Cap
BNK1520K-3G0+771LC5K THK BNK1520K-3, φ15 Lead20, Stroke 600mm, G0 (Zero), 5K (C5 Grade) | Shaft Diameter: φ15mm | Lead: 20mm | Stroke: 600mm | Screw Length L3: 771mm | L2: 704mm | L1: 686mm | Clearance: G0 (Zero) | Nut Grade: 5K (C5 Grade) | Ball Circuit: 1.5 turns × 2 rows | Return Type: End Cap
BNK1520K-3G2+771LC7K THK BNK1520K-3, φ15 Lead20, Stroke 600mm, G2 (Standard), 7K (C7 Grade) | Shaft Diameter: φ15mm | Lead: 20mm | Stroke: 600mm | Screw Length L3: 771mm | L2: 704mm | L1: 686mm | Clearance: G2 (Standard) | Nut Grade: 7K (C7 Grade) | Ball Circuit: 1.5 turns × 2 rows | Return Type: End Cap
BNK1520K-3G0+871LC5K THK BNK1520K-3, φ15 Lead20, Stroke 700mm, G0 (Zero), 5K (C5 Grade) | Shaft Diameter: φ15mm | Lead: 20mm | Stroke: 700mm | Screw Length L3: 871mm | L2: 804mm | L1: 786mm | Clearance: G0 (Zero) | Nut Grade: 5K (C5 Grade) | Ball Circuit: 1.5 turns × 2 rows | Return Type: End Cap
BNK1520K-3G2+871LC7K THK BNK1520K-3, φ15 Lead20, Stroke 700mm, G2 (Standard), 7K (C7 Grade) | Shaft Diameter: φ15mm | Lead: 20mm | Stroke: 700mm | Screw Length L3: 871mm | L2: 804mm | L1: 786mm | Clearance: G2 (Standard) | Nut Grade: 7K (C7 Grade) | Ball Circuit: 1.5 turns × 2 rows | Return Type: End Cap
BNK1520K-3G0+971LC5K THK BNK1520K-3, φ15 Lead20, Stroke 800mm, G0 (Zero), 5K (C5 Grade) | Shaft Diameter: φ15mm | Lead: 20mm | Stroke: 800mm | Screw Length L3: 971mm | L2: 904mm | L1: 886mm | Clearance: G0 (Zero) | Nut Grade: 5K (C5 Grade) | Ball Circuit: 1.5 turns × 2 rows | Return Type: End Cap
BNK1520K-3G2+971LC7K THK BNK1520K-3, φ15 Lead20, Stroke 800mm, G2 (Standard), 7K (C7 Grade) | Shaft Diameter: φ15mm | Lead: 20mm | Stroke: 800mm | Screw Length L3: 971mm | L2: 904mm | L1: 886mm | Clearance: G2 (Standard) | Nut Grade: 7K (C7 Grade) | Ball Circuit: 1.5 turns × 2 rows | Return Type: End Cap
Ball ScrewsTHK
24 product codes available in this family
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THK BNK1520K-3 Ball Screw (Shaft φ15, Lead 20mm)

Brand THK·Ball Screws

Available part numbers (24)

BNK1520K-3G0+321LC5K, BNK1520K-3G2+321LC7K, BNK1520K-3G0+371LC5K, BNK1520K-3G2+371LC7K, BNK1520K-3G0+421LC5K, BNK1520K-3G2+421LC7K, BNK1520K-3G0+471LC5K, BNK1520K-3G2+471LC7K, BNK1520K-3G0+521LC5K, BNK1520K-3G2+521LC7K + 14 more — see full table ↓

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Product codeSpec
BNK1520K-3G0+321LC5KTHK BNK1520K-3, φ15 Lead20, Stroke 150mm, G0 (Zero), 5K (C5 Grade) | Shaft Diameter: φ15mm | Lead: 20mm | Stroke: 150mm | Screw Length L3: 321mm | L2: 254mm | L1: 236mm | Clearance: G0 (Zero) | Nut Grade: 5K (C5 Grade) | Ball Circuit: 1.5 turns × 2 rows | Return Type: End Cap
BNK1520K-3G2+321LC7KTHK BNK1520K-3, φ15 Lead20, Stroke 150mm, G2 (Standard), 7K (C7 Grade) | Shaft Diameter: φ15mm | Lead: 20mm | Stroke: 150mm | Screw Length L3: 321mm | L2: 254mm | L1: 236mm | Clearance: G2 (Standard) | Nut Grade: 7K (C7 Grade) | Ball Circuit: 1.5 turns × 2 rows | Return Type: End Cap
BNK1520K-3G0+371LC5KTHK BNK1520K-3, φ15 Lead20, Stroke 200mm, G0 (Zero), 5K (C5 Grade) | Shaft Diameter: φ15mm | Lead: 20mm | Stroke: 200mm | Screw Length L3: 371mm | L2: 304mm | L1: 286mm | Clearance: G0 (Zero) | Nut Grade: 5K (C5 Grade) | Ball Circuit: 1.5 turns × 2 rows | Return Type: End Cap
BNK1520K-3G2+371LC7KTHK BNK1520K-3, φ15 Lead20, Stroke 200mm, G2 (Standard), 7K (C7 Grade) | Shaft Diameter: φ15mm | Lead: 20mm | Stroke: 200mm | Screw Length L3: 371mm | L2: 304mm | L1: 286mm | Clearance: G2 (Standard) | Nut Grade: 7K (C7 Grade) | Ball Circuit: 1.5 turns × 2 rows | Return Type: End Cap
BNK1520K-3G0+421LC5KTHK BNK1520K-3, φ15 Lead20, Stroke 250mm, G0 (Zero), 5K (C5 Grade) | Shaft Diameter: φ15mm | Lead: 20mm | Stroke: 250mm | Screw Length L3: 421mm | L2: 354mm | L1: 336mm | Clearance: G0 (Zero) | Nut Grade: 5K (C5 Grade) | Ball Circuit: 1.5 turns × 2 rows | Return Type: End Cap
BNK1520K-3G2+421LC7KTHK BNK1520K-3, φ15 Lead20, Stroke 250mm, G2 (Standard), 7K (C7 Grade) | Shaft Diameter: φ15mm | Lead: 20mm | Stroke: 250mm | Screw Length L3: 421mm | L2: 354mm | L1: 336mm | Clearance: G2 (Standard) | Nut Grade: 7K (C7 Grade) | Ball Circuit: 1.5 turns × 2 rows | Return Type: End Cap
BNK1520K-3G0+471LC5KTHK BNK1520K-3, φ15 Lead20, Stroke 300mm, G0 (Zero), 5K (C5 Grade) | Shaft Diameter: φ15mm | Lead: 20mm | Stroke: 300mm | Screw Length L3: 471mm | L2: 404mm | L1: 386mm | Clearance: G0 (Zero) | Nut Grade: 5K (C5 Grade) | Ball Circuit: 1.5 turns × 2 rows | Return Type: End Cap
BNK1520K-3G2+471LC7KTHK BNK1520K-3, φ15 Lead20, Stroke 300mm, G2 (Standard), 7K (C7 Grade) | Shaft Diameter: φ15mm | Lead: 20mm | Stroke: 300mm | Screw Length L3: 471mm | L2: 404mm | L1: 386mm | Clearance: G2 (Standard) | Nut Grade: 7K (C7 Grade) | Ball Circuit: 1.5 turns × 2 rows | Return Type: End Cap
BNK1520K-3G0+521LC5KTHK BNK1520K-3, φ15 Lead20, Stroke 350mm, G0 (Zero), 5K (C5 Grade) | Shaft Diameter: φ15mm | Lead: 20mm | Stroke: 350mm | Screw Length L3: 521mm | L2: 454mm | L1: 436mm | Clearance: G0 (Zero) | Nut Grade: 5K (C5 Grade) | Ball Circuit: 1.5 turns × 2 rows | Return Type: End Cap
BNK1520K-3G2+521LC7KTHK BNK1520K-3, φ15 Lead20, Stroke 350mm, G2 (Standard), 7K (C7 Grade) | Shaft Diameter: φ15mm | Lead: 20mm | Stroke: 350mm | Screw Length L3: 521mm | L2: 454mm | L1: 436mm | Clearance: G2 (Standard) | Nut Grade: 7K (C7 Grade) | Ball Circuit: 1.5 turns × 2 rows | Return Type: End Cap
BNK1520K-3G0+571LC5KTHK BNK1520K-3, φ15 Lead20, Stroke 400mm, G0 (Zero), 5K (C5 Grade) | Shaft Diameter: φ15mm | Lead: 20mm | Stroke: 400mm | Screw Length L3: 571mm | L2: 504mm | L1: 486mm | Clearance: G0 (Zero) | Nut Grade: 5K (C5 Grade) | Ball Circuit: 1.5 turns × 2 rows | Return Type: End Cap
BNK1520K-3G2+571LC7KTHK BNK1520K-3, φ15 Lead20, Stroke 400mm, G2 (Standard), 7K (C7 Grade) | Shaft Diameter: φ15mm | Lead: 20mm | Stroke: 400mm | Screw Length L3: 571mm | L2: 504mm | L1: 486mm | Clearance: G2 (Standard) | Nut Grade: 7K (C7 Grade) | Ball Circuit: 1.5 turns × 2 rows | Return Type: End Cap
BNK1520K-3G0+621LC5KTHK BNK1520K-3, φ15 Lead20, Stroke 450mm, G0 (Zero), 5K (C5 Grade) | Shaft Diameter: φ15mm | Lead: 20mm | Stroke: 450mm | Screw Length L3: 621mm | L2: 554mm | L1: 536mm | Clearance: G0 (Zero) | Nut Grade: 5K (C5 Grade) | Ball Circuit: 1.5 turns × 2 rows | Return Type: End Cap
BNK1520K-3G2+621LC7KTHK BNK1520K-3, φ15 Lead20, Stroke 450mm, G2 (Standard), 7K (C7 Grade) | Shaft Diameter: φ15mm | Lead: 20mm | Stroke: 450mm | Screw Length L3: 621mm | L2: 554mm | L1: 536mm | Clearance: G2 (Standard) | Nut Grade: 7K (C7 Grade) | Ball Circuit: 1.5 turns × 2 rows | Return Type: End Cap
BNK1520K-3G0+671LC5KTHK BNK1520K-3, φ15 Lead20, Stroke 500mm, G0 (Zero), 5K (C5 Grade) | Shaft Diameter: φ15mm | Lead: 20mm | Stroke: 500mm | Screw Length L3: 671mm | L2: 604mm | L1: 586mm | Clearance: G0 (Zero) | Nut Grade: 5K (C5 Grade) | Ball Circuit: 1.5 turns × 2 rows | Return Type: End Cap
BNK1520K-3G2+671LC7KTHK BNK1520K-3, φ15 Lead20, Stroke 500mm, G2 (Standard), 7K (C7 Grade) | Shaft Diameter: φ15mm | Lead: 20mm | Stroke: 500mm | Screw Length L3: 671mm | L2: 604mm | L1: 586mm | Clearance: G2 (Standard) | Nut Grade: 7K (C7 Grade) | Ball Circuit: 1.5 turns × 2 rows | Return Type: End Cap
BNK1520K-3G0+721LC5KTHK BNK1520K-3, φ15 Lead20, Stroke 550mm, G0 (Zero), 5K (C5 Grade) | Shaft Diameter: φ15mm | Lead: 20mm | Stroke: 550mm | Screw Length L3: 721mm | L2: 654mm | L1: 636mm | Clearance: G0 (Zero) | Nut Grade: 5K (C5 Grade) | Ball Circuit: 1.5 turns × 2 rows | Return Type: End Cap
BNK1520K-3G2+721LC7KTHK BNK1520K-3, φ15 Lead20, Stroke 550mm, G2 (Standard), 7K (C7 Grade) | Shaft Diameter: φ15mm | Lead: 20mm | Stroke: 550mm | Screw Length L3: 721mm | L2: 654mm | L1: 636mm | Clearance: G2 (Standard) | Nut Grade: 7K (C7 Grade) | Ball Circuit: 1.5 turns × 2 rows | Return Type: End Cap
BNK1520K-3G0+771LC5KTHK BNK1520K-3, φ15 Lead20, Stroke 600mm, G0 (Zero), 5K (C5 Grade) | Shaft Diameter: φ15mm | Lead: 20mm | Stroke: 600mm | Screw Length L3: 771mm | L2: 704mm | L1: 686mm | Clearance: G0 (Zero) | Nut Grade: 5K (C5 Grade) | Ball Circuit: 1.5 turns × 2 rows | Return Type: End Cap
BNK1520K-3G2+771LC7KTHK BNK1520K-3, φ15 Lead20, Stroke 600mm, G2 (Standard), 7K (C7 Grade) | Shaft Diameter: φ15mm | Lead: 20mm | Stroke: 600mm | Screw Length L3: 771mm | L2: 704mm | L1: 686mm | Clearance: G2 (Standard) | Nut Grade: 7K (C7 Grade) | Ball Circuit: 1.5 turns × 2 rows | Return Type: End Cap
BNK1520K-3G0+871LC5KTHK BNK1520K-3, φ15 Lead20, Stroke 700mm, G0 (Zero), 5K (C5 Grade) | Shaft Diameter: φ15mm | Lead: 20mm | Stroke: 700mm | Screw Length L3: 871mm | L2: 804mm | L1: 786mm | Clearance: G0 (Zero) | Nut Grade: 5K (C5 Grade) | Ball Circuit: 1.5 turns × 2 rows | Return Type: End Cap
BNK1520K-3G2+871LC7KTHK BNK1520K-3, φ15 Lead20, Stroke 700mm, G2 (Standard), 7K (C7 Grade) | Shaft Diameter: φ15mm | Lead: 20mm | Stroke: 700mm | Screw Length L3: 871mm | L2: 804mm | L1: 786mm | Clearance: G2 (Standard) | Nut Grade: 7K (C7 Grade) | Ball Circuit: 1.5 turns × 2 rows | Return Type: End Cap
BNK1520K-3G0+971LC5KTHK BNK1520K-3, φ15 Lead20, Stroke 800mm, G0 (Zero), 5K (C5 Grade) | Shaft Diameter: φ15mm | Lead: 20mm | Stroke: 800mm | Screw Length L3: 971mm | L2: 904mm | L1: 886mm | Clearance: G0 (Zero) | Nut Grade: 5K (C5 Grade) | Ball Circuit: 1.5 turns × 2 rows | Return Type: End Cap
BNK1520K-3G2+971LC7KTHK BNK1520K-3, φ15 Lead20, Stroke 800mm, G2 (Standard), 7K (C7 Grade) | Shaft Diameter: φ15mm | Lead: 20mm | Stroke: 800mm | Screw Length L3: 971mm | L2: 904mm | L1: 886mm | Clearance: G2 (Standard) | Nut Grade: 7K (C7 Grade) | Ball Circuit: 1.5 turns × 2 rows | Return Type: End Cap

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