![[THK] — BNFN-V Ball Screw (Double Nut Spacer Preload, Shaft φ55, Medium)](https://img.prosourcemro.com/2026/05/001-866-1024x683.png)
Ball Screws
THK
[THK] — BNFN-V Ball Screw (Double Nut Spacer Preload, Shaft φ55, Medium)
Family ID: THK-BNFN-V-55
THK BNFN-V Series Precision Ball Screw with Double Nut Spacer Preload. Two nuts combined with a spacer eliminate backlash. Most common double-nut preload configuration — mounted via bolt holes on flange. Shaft diameter φ55mm.
12 product codes available in this family
Product Codes & Specifications
| Product Code | Description | Brand | Spec | ||
|---|---|---|---|---|---|
| BNFN5510-2.5 | THK BNFN5510-2.5, φ55 Lead10, Ca=33.4kN | THK | Shaft Diameter: φ55mm | Lead: 10mm | Ca: 33.4kN | C0a: 97.0kN | Nut OD D: 102mm | Flange D1: 144mm | Total Length L1: 141mm | Type: Double Nut, Spacer Preload, Flanged (BNFN-V) | ||
| BNFN5510-5 | THK BNFN5510-5, φ55 Lead10, Ca=60.7kN | THK | Shaft Diameter: φ55mm | Lead: 10mm | Ca: 60.7kN | C0a: 194.0kN | Nut OD D: 102mm | Flange D1: 144mm | Total Length L1: 201mm | Type: Double Nut, Spacer Preload, Flanged (BNFN-V) | ||
| BNFN5510-7.5 | THK BNFN5510-7.5, φ55 Lead10, Ca=85.9kN | THK | Shaft Diameter: φ55mm | Lead: 10mm | Ca: 85.9kN | C0a: 291.1kN | Nut OD D: 102mm | Flange D1: 144mm | Total Length L1: 261mm | Type: Double Nut, Spacer Preload, Flanged (BNFN-V) | ||
| BNFN5512-2.5 | THK BNFN5512-2.5, φ55 Lead12, Ca=39.3kN | THK | Shaft Diameter: φ55mm | Lead: 12mm | Ca: 39.3kN | C0a: 108.8kN | Nut OD D: 105mm | Flange D1: 147mm | Total Length L1: 165mm | Type: Double Nut, Spacer Preload, Flanged (BNFN-V) | ||
| BNFN5512-3 | THK BNFN5512-3, φ55 Lead12, Ca=46.0kN | THK | Shaft Diameter: φ55mm | Lead: 12mm | Ca: 46.0kN | C0a: 131.3kN | Nut OD D: 105mm | Flange D1: 147mm | Total Length L1: 191mm | Type: Double Nut, Spacer Preload, Flanged (BNFN-V) | ||
| BNFN5512-3.5 | THK BNFN5512-3.5, φ55 Lead12, Ca=52.4kN | THK | Shaft Diameter: φ55mm | Lead: 12mm | Ca: 52.4kN | C0a: 152.9kN | Nut OD D: 105mm | Flange D1: 147mm | Total Length L1: 189mm | Type: Double Nut, Spacer Preload, Flanged (BNFN-V) | ||
| BNFN5512-5 | THK BNFN5512-5, φ55 Lead12, Ca=71.3kN | THK | Shaft Diameter: φ55mm | Lead: 12mm | Ca: 71.3kN | C0a: 218.5kN | Nut OD D: 105mm | Flange D1: 147mm | Total Length L1: 237mm | Type: Double Nut, Spacer Preload, Flanged (BNFN-V) | ||
| BNFN5512-7.5 | THK BNFN5512-7.5, φ55 Lead12, Ca=100.9kN | THK | Shaft Diameter: φ55mm | Lead: 12mm | Ca: 100.9kN | C0a: 327.3kN | Nut OD D: 105mm | Flange D1: 147mm | Total Length L1: 309mm | Type: Double Nut, Spacer Preload, Flanged (BNFN-V) | ||
| BNFN5516-2.5 | THK BNFN5516-2.5, φ55 Lead16, Ca=76.1kN | THK | Shaft Diameter: φ55mm | Lead: 16mm | Ca: 76.1kN | C0a: 201.9kN | Nut OD D: 110mm | Flange D1: 158mm | Total Length L1: 196mm | Type: Double Nut, Spacer Preload, Flanged (BNFN-V) | ||
| BNFN5516-5 | THK BNFN5516-5, φ55 Lead16, Ca=138.2kN | THK | Shaft Diameter: φ55mm | Lead: 16mm | Ca: 138.2kN | C0a: 402.8kN | Nut OD D: 110mm | Flange D1: 158mm | Total Length L1: 292mm | Type: Double Nut, Spacer Preload, Flanged (BNFN-V) | ||
| BNFN5520-2.5 | THK BNFN5520-2.5, φ55 Lead20, Ca=76.0kN | THK | Shaft Diameter: φ55mm | Lead: 20mm | Ca: 76.0kN | C0a: 201.9kN | Nut OD D: 112mm | Flange D1: 158mm | Total Length L1: 227mm | Type: Double Nut, Spacer Preload, Flanged (BNFN-V) | ||
| BNFN5520-5 | THK BNFN5520-5, φ55 Lead20, Ca=138.2kN | THK | Shaft Diameter: φ55mm | Lead: 20mm | Ca: 138.2kN | C0a: 403.8kN | Nut OD D: 112mm | Flange D1: 158mm | Total Length L1: 347mm | Type: Double Nut, Spacer Preload, Flanged (BNFN-V) |
