| Items |
 R28-5B2-OFSW-270-445-0.018 OFSW Type – Standard Ground Ballscrews |
R28-5B2-OFSW-370-545-0.018 OFSW Type – Standard Ground Ballscrews |
R28-5B2-OFSW-470-645-0.018 OFSW Type – Standard Ground Ballscrews |
R28-5B2-OFSW-558-733-0.018 OFSW Type – Standard Ground Ballscrews |
R28-5B2-OFSW-758-933-0.018 OFSW Type – Standard Ground Ballscrews |
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| Shaft Outside Diameter | 28 mm | |||||||||
| Pitch Circle Diameter (PCD) | 28.6 mm | |||||||||
| Root Diameter (RD) | 25.324 mm | |||||||||
| Outside Diameter | 85 mm | |||||||||
| Screw Manufacture Method | ||||||||||
| Operating Environment | ||||||||||
| Other Features | ||||||||||
| Additional Attribute Values | ||||||||||
| L1 | 270 mm | 370 mm | 470 mm | 558 mm | 758 mm | |||||
| L2 | 312 mm | 412 mm | 512 mm | 600 mm | 800 mm | |||||
| L3 | 445 mm | 545 mm | 645 mm | 733 mm | 933 mm | |||||
| Accuracy Grade | 5 | |||||||||
| Stroke | 150 mm | 250 mm | 350 mm | 450 mm | 650 mm | |||||
| Direction | Right Hand | |||||||||
| Lead Angle | 3.19 º | |||||||||
| Screw P.C.D. | 28.6 mm | |||||||||
| Steel Ball Diameter | 3.175 mm | |||||||||
| Circuits | 2.5x2 | |||||||||
| Static Load | 4932 kgf | |||||||||
| Dynamic Load | 1784 kgf | |||||||||
| Axial Play | 0 mm | |||||||||
| Drag Torque | 1.1-3.3 kgf·cm | |||||||||
| Spacer Ball | - | |||||||||
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