TPC Mechatronics RDFNU Series Double Ball Screw Nut (NU-Type, Flanged)

The RDFNU Series is a precision ball screw nut line from TPC Mechatronics: NU-type flanged double nut for preloaded, backlash-free positioning, shaft diameters 16-80 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

RDFNUR1604-4		Shaft dia. d: 16 mm \| Lead: 4 mm \| Ball dia.: 2.381 mm \| Dynamic load Ca: 974 kgf \| Static load Coa: 2408 kgf \| Rigidity K: 49 kgf/μm \| Nut dia. D: 28 mm \| Flange dia. A: 48 mm \| Nut length L: 80 mm \| Circuits: 4×1 \| Thread direction: Right
RDFNUR1605-4		Shaft dia. d: 16 mm \| Lead: 5 mm \| Ball dia.: 3.175 mm \| Dynamic load Ca: 1381 kgf \| Static load Coa: 3055 kgf \| Rigidity K: 51 kgf/μm \| Nut dia. D: 28 mm \| Flange dia. A: 48 mm \| Nut length L: 91 mm \| Circuits: 4×1 \| Thread direction: Right
RDFNUR1610-3		Shaft dia. d: 16 mm \| Lead: 10 mm \| Ball dia.: 3.175 mm \| Dynamic load Ca: 1105 kgf \| Static load Coa: 2403 kgf \| Rigidity K: 41 kgf/μm \| Nut dia. D: 28 mm \| Flange dia. A: 48 mm \| Nut length L: 118 mm \| Circuits: 3×1 \| Thread direction: Right
RDFNUR2004-3		Shaft dia. d: 20 mm \| Lead: 4 mm \| Ball dia.: 2.381 mm \| Dynamic load Ca: 833 kgf \| Static load Coa: 2242 kgf \| Rigidity K: 43 kgf/μm \| Nut dia. D: 36 mm \| Flange dia. A: 58 mm \| Nut length L: 82 mm \| Circuits: 3×1 \| Thread direction: Right
RDFNUR2005-4		Shaft dia. d: 20 mm \| Lead: 5 mm \| Ball dia.: 3.175 mm \| Dynamic load Ca: 1552 kgf \| Static load Coa: 3879 kgf \| Rigidity K: 60 kgf/μm \| Nut dia. D: 36 mm \| Flange dia. A: 58 mm \| Nut length L: 95 mm \| Circuits: 4×1 \| Thread direction: Right
RDFNUR2504-4		Shaft dia. d: 25 mm \| Lead: 4 mm \| Ball dia.: 2.381 mm \| Dynamic load Ca: 1181 kgf \| Static load Coa: 3799 kgf \| Rigidity K: 66 kgf/μm \| Nut dia. D: 40 mm \| Flange dia. A: 62 mm \| Nut length L: 80 mm \| Circuits: 4×1 \| Thread direction: Right
RDFNUR2505-4		Shaft dia. d: 25 mm \| Lead: 5 mm \| Ball dia.: 3.175 mm \| Dynamic load Ca: 1726 kgf \| Static load Coa: 4909 kgf \| Rigidity K: 69 kgf/μm \| Nut dia. D: 40 mm \| Flange dia. A: 62 mm \| Nut length L: 95 mm \| Circuits: 4×1 \| Thread direction: Right
RDFNUR2510-4		Shaft dia. d: 25 mm \| Lead: 10 mm \| Ball dia.: 4.762 mm \| Dynamic load Ca: 2957 kgf \| Static load Coa: 7302 kgf \| Rigidity K: 78 kgf/μm \| Nut dia. D: 40 mm \| Flange dia. A: 62 mm \| Nut length L: 138.5 mm \| Circuits: 4×1 \| Thread direction: Right
RDFNUR3205-4		Shaft dia. d: 32 mm \| Lead: 5 mm \| Ball dia.: 3.175 mm \| Dynamic load Ca: 1924 kgf \| Static load Coa: 6350 kgf \| Rigidity K: 82 kgf/μm \| Nut dia. D: 50 mm \| Flange dia. A: 80 mm \| Nut length L: 97 mm \| Circuits: 4×1 \| Thread direction: Right
RDFNUR3210-4		Shaft dia. d: 32 mm \| Lead: 10 mm \| Ball dia.: 6.35 mm \| Dynamic load Ca: 4810 kgf \| Static load Coa: 12220 kgf \| Rigidity K: 96 kgf/μm \| Nut dia. D: 50 mm \| Flange dia. A: 80 mm \| Nut length L: 153 mm \| Circuits: 4×1 \| Thread direction: Right
RDFNUR4005-4		Shaft dia. d: 40 mm \| Lead: 5 mm \| Ball dia.: 3.175 mm \| Dynamic load Ca: 2112 kgf \| Static load Coa: 7996 kgf \| Rigidity K: 97 kgf/μm \| Nut dia. D: 63 mm \| Flange dia. A: 93 mm \| Nut length L: 101 mm \| Circuits: 4×1 \| Thread direction: Right
RDFNUR4010-4		Shaft dia. d: 40 mm \| Lead: 10 mm \| Ball dia.: 6.35 mm \| Dynamic load Ca: 5405 kgf \| Static load Coa: 15516 kgf \| Rigidity K: 112 kgf/μm \| Nut dia. D: 63 mm \| Flange dia. A: 93 mm \| Nut length L: 157 mm \| Circuits: 4×1 \| Thread direction: Right
RDFNUR5010-4		Shaft dia. d: 50 mm \| Lead: 10 mm \| Ball dia.: 6.35 mm \| Dynamic load Ca: 6010 kgf \| Static load Coa: 19634 kgf \| Rigidity K: 131 kgf/μm \| Nut dia. D: 75 mm \| Flange dia. A: 110 mm \| Nut length L: 157 mm \| Circuits: 4×1 \| Thread direction: Right
RDFNUR6310-4		Shaft dia. d: 63 mm \| Lead: 10 mm \| Ball dia.: 6.35 mm \| Dynamic load Ca: 6726 kgf \| Static load Coa: 25384 kgf \| Rigidity K: 154 kgf/μm \| Nut dia. D: 90 mm \| Flange dia. A: 125 mm \| Nut length L: 182 mm \| Circuits: 4×1 \| Thread direction: Right
RDFNUR6320-4		Shaft dia. d: 63 mm \| Lead: 20 mm \| Ball dia.: 9.525 mm \| Dynamic load Ca: 11456 kgf \| Static load Coa: 36691 kgf \| Rigidity K: 172 kgf/μm \| Nut dia. D: 95 mm \| Flange dia. A: 135 mm \| Nut length L: 290 mm \| Circuits: 4×1 \| Thread direction: Right
RDFNUR8010-4		Shaft dia. d: 80 mm \| Lead: 10 mm \| Ball dia.: 6.35 mm \| Dynamic load Ca: 7353 kgf \| Static load Coa: 31986 kgf \| Rigidity K: 172 kgf/μm \| Nut dia. D: 105 mm \| Flange dia. A: 145 mm \| Nut length L: 170.5 mm \| Circuits: 4×1 \| Thread direction: Right
RDFNUR8020-4		Shaft dia. d: 80 mm \| Lead: 20 mm \| Ball dia.: 9.525 mm \| Dynamic load Ca: 12924 kgf \| Static load Coa: 47796 kgf \| Rigidity K: 209 kgf/μm \| Nut dia. D: 125 mm \| Flange dia. A: 165 mm \| Nut length L: 285 mm \| Circuits: 4×1 \| Thread direction: Right

Ball ScrewsTPC Mechatronics

17 product codes available in this family

Sourced direct from KoreaExport-ready supplyCompetitive pricing

RFQ List 0 Email about this

Need a different model, or a part not listed here? Send us your parts list →

TPC Mechatronics RDFNU Series Double Ball Screw Nut (NU-Type, Flanged)

Brand TPC Mechatronics·Ball Screws

Available part numbers (17)

RDFNUR1604-4, RDFNUR1605-4, RDFNUR1610-3, RDFNUR2004-3, RDFNUR2005-4, RDFNUR2504-4, RDFNUR2505-4, RDFNUR2510-4, RDFNUR3205-4, RDFNUR3210-4 + 7 more — see full table ↓

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.

RFQ List 0 →

View full details

Product codes & specifications

0 selected

RFQ List (0)

	Product code	Spec
	RDFNUR1604-4	Shaft dia. d: 16 mm \| Lead: 4 mm \| Ball dia.: 2.381 mm \| Dynamic load Ca: 974 kgf \| Static load Coa: 2408 kgf \| Rigidity K: 49 kgf/μm \| Nut dia. D: 28 mm \| Flange dia. A: 48 mm \| Nut length L: 80 mm \| Circuits: 4×1 \| Thread direction: Right
	RDFNUR1605-4	Shaft dia. d: 16 mm \| Lead: 5 mm \| Ball dia.: 3.175 mm \| Dynamic load Ca: 1381 kgf \| Static load Coa: 3055 kgf \| Rigidity K: 51 kgf/μm \| Nut dia. D: 28 mm \| Flange dia. A: 48 mm \| Nut length L: 91 mm \| Circuits: 4×1 \| Thread direction: Right
	RDFNUR1610-3	Shaft dia. d: 16 mm \| Lead: 10 mm \| Ball dia.: 3.175 mm \| Dynamic load Ca: 1105 kgf \| Static load Coa: 2403 kgf \| Rigidity K: 41 kgf/μm \| Nut dia. D: 28 mm \| Flange dia. A: 48 mm \| Nut length L: 118 mm \| Circuits: 3×1 \| Thread direction: Right
	RDFNUR2004-3	Shaft dia. d: 20 mm \| Lead: 4 mm \| Ball dia.: 2.381 mm \| Dynamic load Ca: 833 kgf \| Static load Coa: 2242 kgf \| Rigidity K: 43 kgf/μm \| Nut dia. D: 36 mm \| Flange dia. A: 58 mm \| Nut length L: 82 mm \| Circuits: 3×1 \| Thread direction: Right
	RDFNUR2005-4	Shaft dia. d: 20 mm \| Lead: 5 mm \| Ball dia.: 3.175 mm \| Dynamic load Ca: 1552 kgf \| Static load Coa: 3879 kgf \| Rigidity K: 60 kgf/μm \| Nut dia. D: 36 mm \| Flange dia. A: 58 mm \| Nut length L: 95 mm \| Circuits: 4×1 \| Thread direction: Right
	RDFNUR2504-4	Shaft dia. d: 25 mm \| Lead: 4 mm \| Ball dia.: 2.381 mm \| Dynamic load Ca: 1181 kgf \| Static load Coa: 3799 kgf \| Rigidity K: 66 kgf/μm \| Nut dia. D: 40 mm \| Flange dia. A: 62 mm \| Nut length L: 80 mm \| Circuits: 4×1 \| Thread direction: Right
	RDFNUR2505-4	Shaft dia. d: 25 mm \| Lead: 5 mm \| Ball dia.: 3.175 mm \| Dynamic load Ca: 1726 kgf \| Static load Coa: 4909 kgf \| Rigidity K: 69 kgf/μm \| Nut dia. D: 40 mm \| Flange dia. A: 62 mm \| Nut length L: 95 mm \| Circuits: 4×1 \| Thread direction: Right
	RDFNUR2510-4	Shaft dia. d: 25 mm \| Lead: 10 mm \| Ball dia.: 4.762 mm \| Dynamic load Ca: 2957 kgf \| Static load Coa: 7302 kgf \| Rigidity K: 78 kgf/μm \| Nut dia. D: 40 mm \| Flange dia. A: 62 mm \| Nut length L: 138.5 mm \| Circuits: 4×1 \| Thread direction: Right
	RDFNUR3205-4	Shaft dia. d: 32 mm \| Lead: 5 mm \| Ball dia.: 3.175 mm \| Dynamic load Ca: 1924 kgf \| Static load Coa: 6350 kgf \| Rigidity K: 82 kgf/μm \| Nut dia. D: 50 mm \| Flange dia. A: 80 mm \| Nut length L: 97 mm \| Circuits: 4×1 \| Thread direction: Right
	RDFNUR3210-4	Shaft dia. d: 32 mm \| Lead: 10 mm \| Ball dia.: 6.35 mm \| Dynamic load Ca: 4810 kgf \| Static load Coa: 12220 kgf \| Rigidity K: 96 kgf/μm \| Nut dia. D: 50 mm \| Flange dia. A: 80 mm \| Nut length L: 153 mm \| Circuits: 4×1 \| Thread direction: Right
	RDFNUR4005-4	Shaft dia. d: 40 mm \| Lead: 5 mm \| Ball dia.: 3.175 mm \| Dynamic load Ca: 2112 kgf \| Static load Coa: 7996 kgf \| Rigidity K: 97 kgf/μm \| Nut dia. D: 63 mm \| Flange dia. A: 93 mm \| Nut length L: 101 mm \| Circuits: 4×1 \| Thread direction: Right
	RDFNUR4010-4	Shaft dia. d: 40 mm \| Lead: 10 mm \| Ball dia.: 6.35 mm \| Dynamic load Ca: 5405 kgf \| Static load Coa: 15516 kgf \| Rigidity K: 112 kgf/μm \| Nut dia. D: 63 mm \| Flange dia. A: 93 mm \| Nut length L: 157 mm \| Circuits: 4×1 \| Thread direction: Right
	RDFNUR5010-4	Shaft dia. d: 50 mm \| Lead: 10 mm \| Ball dia.: 6.35 mm \| Dynamic load Ca: 6010 kgf \| Static load Coa: 19634 kgf \| Rigidity K: 131 kgf/μm \| Nut dia. D: 75 mm \| Flange dia. A: 110 mm \| Nut length L: 157 mm \| Circuits: 4×1 \| Thread direction: Right
	RDFNUR6310-4	Shaft dia. d: 63 mm \| Lead: 10 mm \| Ball dia.: 6.35 mm \| Dynamic load Ca: 6726 kgf \| Static load Coa: 25384 kgf \| Rigidity K: 154 kgf/μm \| Nut dia. D: 90 mm \| Flange dia. A: 125 mm \| Nut length L: 182 mm \| Circuits: 4×1 \| Thread direction: Right
	RDFNUR6320-4	Shaft dia. d: 63 mm \| Lead: 20 mm \| Ball dia.: 9.525 mm \| Dynamic load Ca: 11456 kgf \| Static load Coa: 36691 kgf \| Rigidity K: 172 kgf/μm \| Nut dia. D: 95 mm \| Flange dia. A: 135 mm \| Nut length L: 290 mm \| Circuits: 4×1 \| Thread direction: Right
	RDFNUR8010-4	Shaft dia. d: 80 mm \| Lead: 10 mm \| Ball dia.: 6.35 mm \| Dynamic load Ca: 7353 kgf \| Static load Coa: 31986 kgf \| Rigidity K: 172 kgf/μm \| Nut dia. D: 105 mm \| Flange dia. A: 145 mm \| Nut length L: 170.5 mm \| Circuits: 4×1 \| Thread direction: Right
	RDFNUR8020-4	Shaft dia. d: 80 mm \| Lead: 20 mm \| Ball dia.: 9.525 mm \| Dynamic load Ca: 12924 kgf \| Static load Coa: 47796 kgf \| Rigidity K: 209 kgf/μm \| Nut dia. D: 125 mm \| Flange dia. A: 165 mm \| Nut length L: 285 mm \| Circuits: 4×1 \| Thread direction: Right

Need a different model, or a part not listed here? Send us your parts list →

Related products

All Linear Motion & Bearings →

Item added to your cart

TPC Mechatronics RDFNU Series Double Ball Screw Nut (NU-Type, Flanged)