![[THK] — BNFN-V Ball Screw (Double Nut Spacer Preload, Shaft φ63~70, Medium)](https://img.prosourcemro.com/2026/05/001-866-1024x683.png)
Ball Screws
THK
[THK] — BNFN-V Ball Screw (Double Nut Spacer Preload, Shaft φ63~70, Medium)
Family ID: THK-BNFN-V-63-70
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 φ63~70mm.
16 product codes available in this family
Product Codes & Specifications
| Product Code | Description | Brand | Spec | ||
|---|---|---|---|---|---|
| BNFN6310-2.5 | THK BNFN6310-2.5, φ63 Lead10, Ca=35.4kN | THK | Shaft Diameter: φ63mm | Lead: 10mm | Ca: 35.4kN | C0a: 111.7kN | Nut OD D: 108mm | Flange D1: 154mm | Total Length L1: 137mm | Type: Double Nut, Spacer Preload, Flanged (BNFN-V) | ||
| BNFN6310-5 | THK BNFN6310-5, φ63 Lead10, Ca=64.2kN | THK | Shaft Diameter: φ63mm | Lead: 10mm | Ca: 64.2kN | C0a: 222.5kN | Nut OD D: 108mm | Flange D1: 154mm | Total Length L1: 197mm | Type: Double Nut, Spacer Preload, Flanged (BNFN-V) | ||
| BNFN6310-7.5 | THK BNFN6310-7.5, φ63 Lead10, Ca=90.9kN | THK | Shaft Diameter: φ63mm | Lead: 10mm | Ca: 90.9kN | C0a: 334.2kN | Nut OD D: 108mm | Flange D1: 154mm | Total Length L1: 257mm | Type: Double Nut, Spacer Preload, Flanged (BNFN-V) | ||
| BNFN6312A-2.5 | THK BNFN6312A-2.5, φ63 Lead12, Ca=48.1kN | THK | Shaft Diameter: φ63mm | Lead: 12mm | Ca: 48.1kN | C0a: 139.2kN | Nut OD D: 115mm | Flange D1: 161mm | Total Length L1: 159mm | Type: Double Nut, Spacer Preload, Flanged (BNFN-V) | ||
| BNFN6312A-5 | THK BNFN6312A-5, φ63 Lead12, Ca=87.4kN | THK | Shaft Diameter: φ63mm | Lead: 12mm | Ca: 87.4kN | C0a: 278.3kN | Nut OD D: 115mm | Flange D1: 161mm | Total Length L1: 231mm | Type: Double Nut, Spacer Preload, Flanged (BNFN-V) | ||
| BNFN6316-2.5 | THK BNFN6316-2.5, φ63 Lead16, Ca=81.1kN | THK | Shaft Diameter: φ63mm | Lead: 16mm | Ca: 81.1kN | C0a: 231.3kN | Nut OD D: 122mm | Flange D1: 184mm | Total Length L1: 208mm | Type: Double Nut, Spacer Preload, Flanged (BNFN-V) | ||
| BNFN6316-5 | THK BNFN6316-5, φ63 Lead16, Ca=147.0kN | THK | Shaft Diameter: φ63mm | Lead: 16mm | Ca: 147.0kN | C0a: 462.6kN | Nut OD D: 122mm | Flange D1: 184mm | Total Length L1: 304mm | Type: Double Nut, Spacer Preload, Flanged (BNFN-V) | ||
| BNFN6320-2.5 | THK BNFN6320-2.5, φ63 Lead20, Ca=81.0kN | THK | Shaft Diameter: φ63mm | Lead: 20mm | Ca: 81.0kN | C0a: 231.3kN | Nut OD D: 122mm | Flange D1: 180mm | Total Length L1: 227mm | Type: Double Nut, Spacer Preload, Flanged (BNFN-V) | ||
| BNFN6320-5 | THK BNFN6320-5, φ63 Lead20, Ca=147.0kN | THK | Shaft Diameter: φ63mm | Lead: 20mm | Ca: 147.0kN | C0a: 463.5kN | Nut OD D: 122mm | Flange D1: 180mm | Total Length L1: 347mm | Type: Double Nut, Spacer Preload, Flanged (BNFN-V) | ||
| BNFN7010-2.5 | THK BNFN7010-2.5, φ70 Lead10, Ca=36.8kN | THK | Shaft Diameter: φ70mm | Lead: 10mm | Ca: 36.8kN | C0a: 123.5kN | Nut OD D: 125mm | Flange D1: 167mm | Total Length L1: 141mm | Type: Double Nut, Spacer Preload, Flanged (BNFN-V) | ||
| BNFN7010-5 | THK BNFN7010-5, φ70 Lead10, Ca=66.9kN | THK | Shaft Diameter: φ70mm | Lead: 10mm | Ca: 66.9kN | C0a: 247.0kN | Nut OD D: 125mm | Flange D1: 167mm | Total Length L1: 201mm | Type: Double Nut, Spacer Preload, Flanged (BNFN-V) | ||
| BNFN7010-7.5 | THK BNFN7010-7.5, φ70 Lead10, Ca=94.9kN | THK | Shaft Diameter: φ70mm | Lead: 10mm | Ca: 94.9kN | C0a: 371.4kN | Nut OD D: 125mm | Flange D1: 167mm | Total Length L1: 261mm | Type: Double Nut, Spacer Preload, Flanged (BNFN-V) | ||
| BNFN7012-2.5 | THK BNFN7012-2.5, φ70 Lead12, Ca=43.5kN | THK | Shaft Diameter: φ70mm | Lead: 12mm | Ca: 43.5kN | C0a: 139.2kN | Nut OD D: 128mm | Flange D1: 170mm | Total Length L1: 165mm | Type: Double Nut, Spacer Preload, Flanged (BNFN-V) | ||
| BNFN7012-5 | THK BNFN7012-5, φ70 Lead12, Ca=78.9kN | THK | Shaft Diameter: φ70mm | Lead: 12mm | Ca: 78.9kN | C0a: 278.3kN | Nut OD D: 128mm | Flange D1: 170mm | Total Length L1: 237mm | Type: Double Nut, Spacer Preload, Flanged (BNFN-V) | ||
| BNFN7012-7.5 | THK BNFN7012-7.5, φ70 Lead12, Ca=111.7kN | THK | Shaft Diameter: φ70mm | Lead: 12mm | Ca: 111.7kN | C0a: 417.5kN | Nut OD D: 128mm | Flange D1: 170mm | Total Length L1: 309mm | Type: Double Nut, Spacer Preload, Flanged (BNFN-V) | ||
| BNFN7020-5 | THK BNFN7020-5, φ70 Lead20, Ca=153.9kN | THK | Shaft Diameter: φ70mm | Lead: 20mm | Ca: 153.9kN | C0a: 514.5kN | Nut OD D: 130mm | Flange D1: 186mm | Total Length L1: 325mm | Type: Double Nut, Spacer Preload, Flanged (BNFN-V) |
