![[THK] — SBK Ball Screw (Medium Type, φ36~55, Ball Retainer)](https://img.prosourcemro.com/2026/05/001-856-1024x819.png)
Ball Screws
THK
[THK] — SBK Ball Screw (Medium Type, φ36~55, Ball Retainer)
Family ID: THK-SBK-MEDIUM
THK SBK Series High-Speed Precision Ground Ball Screw (Medium type) with Ball Retainer. DN value 210,000. Ball retainer eliminates ball-to-ball contact for low noise, reduced torque variation, and long maintenance-free operation. Shaft diameter range φ36~55mm. Multiple lead options available.
12 product codes available in this family
Product Codes & Specifications
| Product Code | Description | Brand | Spec | ||
|---|---|---|---|---|---|
| SBK3620-7.6 | THK SBK3620-7.6, φ36 Lead20, Ca=48.5kN | THK | Shaft Diameter: φ36mm | Lead: 20mm | Ca: 48.5kN | C0a: 85.0kN | Nut OD D: 73mm | Flange D1: 114mm | Nut Length L1: 110mm | DN Value: 210,000 | Size: Medium | Type: High-Speed, Ball Retainer (SBK) | ||
| SBK3636-5.6 | THK SBK3636-5.6, φ36 Lead36, Ca=36.6kN | THK | Shaft Diameter: φ36mm | Lead: 36mm | Ca: 36.6kN | C0a: 64.7kN | Nut OD D: 73mm | Flange D1: 114mm | Nut Length L1: 134mm | DN Value: 210,000 | Size: Medium | Type: High-Speed, Ball Retainer (SBK) | ||
| SBK4020-7.6 | THK SBK4020-7.6, φ40 Lead20, Ca=59.7kN | THK | Shaft Diameter: φ40mm | Lead: 20mm | Ca: 59.7kN | C0a: 112.7kN | Nut OD D: 80mm | Flange D1: 136mm | Nut Length L1: 110mm | DN Value: 210,000 | Size: Medium | Type: High-Speed, Ball Retainer (SBK) | ||
| SBK4030-7.6 | THK SBK4030-7.6, φ40 Lead30, Ca=59.2kN | THK | Shaft Diameter: φ40mm | Lead: 30mm | Ca: 59.2kN | C0a: 107.5kN | Nut OD D: 80mm | Flange D1: 136mm | Nut Length L1: 148mm | DN Value: 210,000 | Size: Medium | Type: High-Speed, Ball Retainer (SBK) | ||
| SBK4040-5.6 | THK SBK4040-5.6, φ40 Lead40, Ca=44.8kN | THK | Shaft Diameter: φ40mm | Lead: 40mm | Ca: 44.8kN | C0a: 80.3kN | Nut OD D: 80mm | Flange D1: 136mm | Nut Length L1: 146mm | DN Value: 210,000 | Size: Medium | Type: High-Speed, Ball Retainer (SBK) | ||
| SBK5020-7.6 | THK SBK5020-7.6, φ50 Lead20, Ca=66.8kN | THK | Shaft Diameter: φ50mm | Lead: 20mm | Ca: 66.8kN | C0a: 141.9kN | Nut OD D: 90mm | Flange D1: 146mm | Nut Length L1: 110mm | DN Value: 210,000 | Size: Medium | Type: High-Speed, Ball Retainer (SBK) | ||
| SBK5030-7.6 | THK SBK5030-7.6, φ50 Lead30, Ca=66.5kN | THK | Shaft Diameter: φ50mm | Lead: 30mm | Ca: 66.5kN | C0a: 135.0kN | Nut OD D: 90mm | Flange D1: 146mm | Nut Length L1: 149mm | DN Value: 210,000 | Size: Medium | Type: High-Speed, Ball Retainer (SBK) | ||
| SBK5036-7.6 | THK SBK5036-7.6, φ50 Lead36, Ca=65.9kN | THK | Shaft Diameter: φ50mm | Lead: 36mm | Ca: 65.9kN | C0a: 135.0kN | Nut OD D: 90mm | Flange D1: 146mm | Nut Length L1: 172mm | DN Value: 210,000 | Size: Medium | Type: High-Speed, Ball Retainer (SBK) | ||
| SBK5050-5.6 | THK SBK5050-5.6, φ50 Lead50, Ca=50.3kN | THK | Shaft Diameter: φ50mm | Lead: 50mm | Ca: 50.3kN | C0a: 102.4kN | Nut OD D: 90mm | Flange D1: 146mm | Nut Length L1: 175mm | DN Value: 210,000 | Size: Medium | Type: High-Speed, Ball Retainer (SBK) | ||
| SBK5520-7.6 | THK SBK5520-7.6, φ55 Lead20, Ca=69.8kN | THK | Shaft Diameter: φ55mm | Lead: 20mm | Ca: 69.8kN | C0a: 156.4kN | Nut OD D: 96mm | Flange D1: 152mm | Nut Length L1: 110mm | DN Value: 210,000 | Size: Medium | Type: High-Speed, Ball Retainer (SBK) | ||
| SBK5530-7.6 | THK SBK5530-7.6, φ55 Lead30, Ca=69.2kN | THK | Shaft Diameter: φ55mm | Lead: 30mm | Ca: 69.2kN | C0a: 147.0kN | Nut OD D: 96mm | Flange D1: 152mm | Nut Length L1: 149mm | DN Value: 210,000 | Size: Medium | Type: High-Speed, Ball Retainer (SBK) | ||
| SBK5536-7.6 | THK SBK5536-7.6, φ55 Lead36, Ca=69.1kN | THK | Shaft Diameter: φ55mm | Lead: 36mm | Ca: 69.1kN | C0a: 148.7kN | Nut OD D: 96mm | Flange D1: 152mm | Nut Length L1: 172mm | DN Value: 210,000 | Size: Medium | Type: High-Speed, Ball Retainer (SBK) |
