TPC Mechatronics RSFK Series Miniature Ball Screw Nut (K-Type, Single Flanged)
TPC Mechatronics RSFK Series Miniature Ball Screw Nut (K-Type, Single Flanged)
The RSFK Series is a precision ball screw nut line from TPC Mechatronics: K-type miniature single flanged nut for small-diameter ball screws from 4 to 25 mm.
Key features
- Ball screws convert rotary motion into linear motion with high efficiency, reversibility and high positioning precision
- Internal ball circulation keeps the nut outer diameter small
- Shafts are available ground or rolled in accuracy grades C0 to C10 with selectable axial clearance/preload (P0-P4) and surface treatments
- The table lists ball diameter, root diameter, basic dynamic and static load ratings, rigidity and main nut dimensions for each model
Specifications
| Thread direction | Right |
|---|
| RSFKR0401-2 | Shaft dia. d: 4 mm | Lead: 1 mm | Ball dia.: 0.8 mm | Dynamic load Ca: 64 kgf | Static load Coa: 97 kgf | Rigidity K: 5 kgf/μm | Nut dia. D: 10 mm | Flange dia. A: 20 mm | Nut length L: 12 mm | Circuits: 2×1 | Thread direction: Right | |
| RSFKR0601-4 | Shaft dia. d: 6 mm | Lead: 1 mm | Ball dia.: 0.8 mm | Dynamic load Ca: 142 kgf | Static load Coa: 299 kgf | Rigidity K: 12 kgf/μm | Nut dia. D: 12 mm | Flange dia. A: 24 mm | Nut length L: 14 mm | Circuits: 4×1 | Thread direction: Right | |
| RSFKR0801-4 | Shaft dia. d: 8 mm | Lead: 1 mm | Ball dia.: 0.8 mm | Dynamic load Ca: 162 kgf | Static load Coa: 403 kgf | Rigidity K: 14 kgf/μm | Nut dia. D: 14 mm | Flange dia. A: 27 mm | Nut length L: 14 mm | Circuits: 4×1 | Thread direction: Right | |
| RSFKR0802-4 | Shaft dia. d: 8 mm | Lead: 2 mm | Ball dia.: 1.2 mm | Dynamic load Ca: 283 kgf | Static load Coa: 612 kgf | Rigidity K: 17 kgf/μm | Nut dia. D: 14 mm | Flange dia. A: 27 mm | Nut length L: 24 mm | Circuits: 4×1 | Thread direction: Right | |
| RSFKR1002-4 | Shaft dia. d: 10 mm | Lead: 2 mm | Ball dia.: 1.2 mm | Dynamic load Ca: 311 kgf | Static load Coa: 759 kgf | Rigidity K: 19 kgf/μm | Nut dia. D: 18 mm | Flange dia. A: 35 mm | Nut length L: 24 mm | Circuits: 4×1 | Thread direction: Right | |
| RSFKR1202-4 | Shaft dia. d: 12 mm | Lead: 2 mm | Ball dia.: 1.2 mm | Dynamic load Ca: 334 kgf | Static load Coa: 907 kgf | Rigidity K: 22 kgf/μm | Nut dia. D: 20 mm | Flange dia. A: 37 mm | Nut length L: 24 mm | Circuits: 4×1 | Thread direction: Right | |
| RSFKR1402-4 | Shaft dia. d: 14 mm | Lead: 2 mm | Ball dia.: 1.2 mm | Dynamic load Ca: 355 kgf | Static load Coa: 1054 kgf | Rigidity K: 23 kgf/μm | Nut dia. D: 21 mm | Flange dia. A: 40 mm | Nut length L: 24 mm | Circuits: 4×1 | Thread direction: Right | |
| RSFKR1602-4 | Shaft dia. d: 16 mm | Lead: 2 mm | Ball dia.: 1.2 mm | Dynamic load Ca: 373 kgf | Static load Coa: 1201 kgf | Rigidity K: 26 kgf/μm | Nut dia. D: 25 mm | Flange dia. A: 43 mm | Nut length L: 40 mm | Circuits: 4×1 | Thread direction: Right | |
| RSFKR2002-4 | Shaft dia. d: 20 mm | Lead: 2 mm | Ball dia.: 1.2 mm | Dynamic load Ca: 581 kgf | Static load Coa: 2287 kgf | Rigidity K: 47 kgf/μm | Nut dia. D: 50 mm | Flange dia. A: 80 mm | Nut length L: 55 mm | Circuits: 6×1 | Thread direction: Right | |
| RSFKR2502-4 | Shaft dia. d: 25 mm | Lead: 2 mm | Ball dia.: 1.2 mm | Dynamic load Ca: 540 kgf | Static load Coa: 2383 kgf | Rigidity K: 46 kgf/μm | Nut dia. D: 50 mm | Flange dia. A: 80 mm | Nut length L: 43 mm | Circuits: 5×1 | Thread direction: Right |
Ball ScrewsTPC Mechatronics
10 product codes available in this family
Sourced direct from KoreaExport-ready supplyCompetitive pricing
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TPC Mechatronics RSFK Series Miniature Ball Screw Nut (K-Type, Single Flanged)
Available part numbers (10)
RSFKR0401-2, RSFKR0601-4, RSFKR0801-4, RSFKR0802-4, RSFKR1002-4, RSFKR1202-4, RSFKR1402-4, RSFKR1602-4, RSFKR2002-4, RSFKR2502-4
How to order
Send the TPC Mechatronics part numbers and quantities through our RFQ form or to info@prosourcemro.com. We confirm price, availability and lead time within 1 business day — no account needed.
TPC Mechatronics
Ball Screws
Photo on request
Product codes & specifications
| Product code | Spec | ||
|---|---|---|---|
| RSFKR0401-2 | Shaft dia. d: 4 mm | Lead: 1 mm | Ball dia.: 0.8 mm | Dynamic load Ca: 64 kgf | Static load Coa: 97 kgf | Rigidity K: 5 kgf/μm | Nut dia. D: 10 mm | Flange dia. A: 20 mm | Nut length L: 12 mm | Circuits: 2×1 | Thread direction: Right | ||
| RSFKR0601-4 | Shaft dia. d: 6 mm | Lead: 1 mm | Ball dia.: 0.8 mm | Dynamic load Ca: 142 kgf | Static load Coa: 299 kgf | Rigidity K: 12 kgf/μm | Nut dia. D: 12 mm | Flange dia. A: 24 mm | Nut length L: 14 mm | Circuits: 4×1 | Thread direction: Right | ||
| RSFKR0801-4 | Shaft dia. d: 8 mm | Lead: 1 mm | Ball dia.: 0.8 mm | Dynamic load Ca: 162 kgf | Static load Coa: 403 kgf | Rigidity K: 14 kgf/μm | Nut dia. D: 14 mm | Flange dia. A: 27 mm | Nut length L: 14 mm | Circuits: 4×1 | Thread direction: Right | ||
| RSFKR0802-4 | Shaft dia. d: 8 mm | Lead: 2 mm | Ball dia.: 1.2 mm | Dynamic load Ca: 283 kgf | Static load Coa: 612 kgf | Rigidity K: 17 kgf/μm | Nut dia. D: 14 mm | Flange dia. A: 27 mm | Nut length L: 24 mm | Circuits: 4×1 | Thread direction: Right | ||
| RSFKR1002-4 | Shaft dia. d: 10 mm | Lead: 2 mm | Ball dia.: 1.2 mm | Dynamic load Ca: 311 kgf | Static load Coa: 759 kgf | Rigidity K: 19 kgf/μm | Nut dia. D: 18 mm | Flange dia. A: 35 mm | Nut length L: 24 mm | Circuits: 4×1 | Thread direction: Right | ||
| RSFKR1202-4 | Shaft dia. d: 12 mm | Lead: 2 mm | Ball dia.: 1.2 mm | Dynamic load Ca: 334 kgf | Static load Coa: 907 kgf | Rigidity K: 22 kgf/μm | Nut dia. D: 20 mm | Flange dia. A: 37 mm | Nut length L: 24 mm | Circuits: 4×1 | Thread direction: Right | ||
| RSFKR1402-4 | Shaft dia. d: 14 mm | Lead: 2 mm | Ball dia.: 1.2 mm | Dynamic load Ca: 355 kgf | Static load Coa: 1054 kgf | Rigidity K: 23 kgf/μm | Nut dia. D: 21 mm | Flange dia. A: 40 mm | Nut length L: 24 mm | Circuits: 4×1 | Thread direction: Right | ||
| RSFKR1602-4 | Shaft dia. d: 16 mm | Lead: 2 mm | Ball dia.: 1.2 mm | Dynamic load Ca: 373 kgf | Static load Coa: 1201 kgf | Rigidity K: 26 kgf/μm | Nut dia. D: 25 mm | Flange dia. A: 43 mm | Nut length L: 40 mm | Circuits: 4×1 | Thread direction: Right | ||
| RSFKR2002-4 | Shaft dia. d: 20 mm | Lead: 2 mm | Ball dia.: 1.2 mm | Dynamic load Ca: 581 kgf | Static load Coa: 2287 kgf | Rigidity K: 47 kgf/μm | Nut dia. D: 50 mm | Flange dia. A: 80 mm | Nut length L: 55 mm | Circuits: 6×1 | Thread direction: Right | ||
| RSFKR2502-4 | Shaft dia. d: 25 mm | Lead: 2 mm | Ball dia.: 1.2 mm | Dynamic load Ca: 540 kgf | Static load Coa: 2383 kgf | Rigidity K: 46 kgf/μm | Nut dia. D: 50 mm | Flange dia. A: 80 mm | Nut length L: 43 mm | Circuits: 5×1 | Thread direction: Right |
Need a different model, or a part not listed here? Send us your parts list →
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