Ball Screws THK

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

Family ID: THK-BNK1520K-3

THK BNK Series Precision Ground Ball Screw, shaft diameter φ15mm, lead 20mm. 1.5 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).

24 product codes available in this family

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Product Codes & Specifications

Product Code	Description	Brand	Spec
BNK1520K-3G0+321LC5K	THK BNK1520K-3, φ15 Lead20, Stroke 150mm, G0 (Zero), 5K (C5 Grade)	THK	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)	THK	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)	THK	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)	THK	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)	THK	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)	THK	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)	THK	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)	THK	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)	THK	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)	THK	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)	THK	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)	THK	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)	THK	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)	THK	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)	THK	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)	THK	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)	THK	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)	THK	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)	THK	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)	THK	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)	THK	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)	THK	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)	THK	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)	THK	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

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

Product Codes & Specifications

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