Ball Screw
Efficiency | Seamless Motion
A ball screw is a mechanical device converting rotational motion to linear motion via ball bearings rolling in helical grooves of a screw shaft and nut, featuring high precision, efficiency, and rigidity.
It consists of a screw shaft, nut with recirculation system, and ball bearings, enabling seamless motion through continuous ball rolling and redirection.
SFU Series Ball Screw
| Parameter Name |
Specific Information |
| Nominal Model |
SFU Type |
| Part Number |
R20-05T4-SFU-0.05 |
| Thread Direction |
Right-Hand (Right) |
| Nominal Diameter |
20 mm |
| Lead |
5 mm |
| Number of Turns (TurnRow) |
T4 (4 Turns) |
| Flange Type |
Double Cutting Ball Nut |
| Product Process |
Rolled |
| Accuracy Grade |
C7 Grade (0.05 Microns / 300 mm) |
| Maximum Shaft Total Length |
4500 mm |
| Axial Clearance and Preload Value |
P0 (Zero Backlash) |
| Number of Nuts |
1 Nut per Shaft |
| Nut Surface Treatment |
Standard Treatment |
| Shaft Surface Treatment |
Standard Treatment |
Product Display
| Model No. |
Shaft |
Lead |
Ball |
Nut Dimensions |
Dynamic Load |
Static Load |
| d |
l |
Da |
D |
A |
B |
L |
W |
H |
X |
Q |
n |
Ca |
Coa |
| SFUR1204-3 |
12 |
4 |
2.5 |
24 |
40 |
10 |
40 |
32 |
30 |
4.5 |
M6×1 |
1×3 |
451 |
709 |
| SFUR1604-3 |
16 |
4 |
2.381 |
28 |
48 |
10 |
36 |
38 |
40 |
5.5 |
M6×1 |
1×3 |
488 |
940 |
| SFUR1605-3 |
5 |
3.175 |
28 |
48 |
10 |
42 |
38 |
40 |
5.5 |
M6×1 |
1×3 |
666 |
1143 |
| SFUR1605-4 |
5 |
3.175 |
28 |
48 |
10 |
50 |
38 |
40 |
5.5 |
M6×1 |
1×4 |
888 |
1525 |
| SFUR1610-3 |
10 |
3.175 |
28 |
48 |
10 |
57 |
38 |
40 |
5.5 |
M6×1 |
1×3 |
716 |
1232 |
| SFUR2004-3 |
20 |
4 |
2.381 |
36 |
58 |
10 |
42 |
47 |
44 |
6.6 |
M6×1 |
1×3 |
541 |
1187 |
| SFUR2005-3 |
5 |
3.175 |
36 |
58 |
10 |
42 |
47 |
44 |
6.6 |
M6×1 |
1×3 |
749 |
1495 |
| SFUR2005-4 |
5 |
3.175 |
36 |
58 |
10 |
51 |
47 |
44 |
6.6 |
M6×1 |
1×4 |
999 |
1994 |
| SFUR2504-3 |
25 |
4 |
2.381 |
40 |
62 |
10 |
42 |
51 |
48 |
6.6 |
M6×1 |
1×3 |
605 |
1534 |
| SFUR2505-3 |
5 |
3.175 |
40 |
62 |
10 |
42 |
51 |
48 |
6.6 |
M6×1 |
1×3 |
839 |
1935 |
| SFUR2505-4 |
5 |
3.175 |
40 |
62 |
10 |
51 |
51 |
48 |
6.6 |
M6×1 |
1×4 |
1119 |
2581 |
| SFUR2510-3 |
10 |
4.762 |
40 |
62 |
10 |
70 |
51 |
48 |
6.6 |
M6×1 |
1×3 |
1427 |
2771 |
| SFUR2510-4 |
10 |
4.762 |
40 |
62 |
12 |
85 |
51 |
48 |
6.6 |
M6×1 |
1×4 |
1903 |
3695 |
| SFUR3205-4 |
32 |
5 |
3.175 |
50 |
80 |
12 |
52 |
65 |
62 |
9 |
M6×1 |
1×4 |
1264 |
3402 |
| SFUR3210-3 |
10 |
6.35 |
50 |
80 |
12 |
74 |
65 |
62 |
9 |
M6×1 |
1×3 |
2319 |
4575 |
| SFUR3210-4 |
10 |
6.35 |
50 |
80 |
12 |
90 |
65 |
62 |
9 |
M6×1 |
1×4 |
3092 |
6101 |
| SFUR4005-4 |
40 |
5 |
3.175 |
63 |
93 |
14 |
55 |
78 |
70 |
9 |
M8×1 |
1×4 |
1407 |
4341 |
| SFUR4010-3 |
10 |
6.35 |
63 |
93 |
14 |
71 |
78 |
70 |
9 |
M8×1 |
1×3 |
2610 |
5834 |
| SFUR4010-4 |
10 |
6.35 |
63 |
93 |
14 |
93 |
78 |
70 |
9 |
M8×1 |
1×4 |
3480 |
7779 |
| SFUR5010-4 |
50 |
10 |
6.35 |
75 |
110 |
16 |
93 |
93 |
85 |
11 |
M8×1 |
1×4 |
3898 |
10325 |
| SFUR6310-4 |
63 |
10 |
6.35 |
90 |
125 |
18 |
98 |
108 |
95 |
11 |
M8×1 |
1×4 |
4401 |
13611 |
| SFUR6320-4 |
20 |
9.525 |
95 |
135 |
20 |
149 |
115 |
100 |
13.5 |
M8×1 |
1×4 |
7404 |
19008 |
| SFUR8010-4 |
80 |
10 |
6.35 |
105 |
145 |
20 |
98 |
125 |
110 |
13.5 |
M8×1 |
1×4 |
4900 |
17366 |
| SFUR8020-4 |
20 |
9.525 |
125 |
165 |
25 |
154 |
145 |
130 |
13.5 |
M8×1 |
1×4 |
8403 |
25345 |
Reference Types for Nut Circulation
Internal | External | End Cap
| Internal Circulation |
| Single Nut |
SFU, SFI, BSH |
| Double Nut |
DFU, DFI |
| Feature |
• Compact nut outer diameter (space-saving).
• Suitable for cases with a small lead/screw shaft outer diameter ratio. |
| External Circulation |
| Single Nut |
SFV, XSV, BSH |
| Double Nut |
DFV |
| Feature |
• Cost-effective.
• Applicable to cases with a large lead/screw shaft outer diameter ratio.
• Suitable for high-load applications |
| End Cap Circulation |
| Single Nut |
SFS, SFY, SFE |
| Double Nut |
DFS |
| Feature |
• Ideal for high-speed feeding applications. |
Technical Service
01 Introduction
Consists of professional technical management team and highly skillful technicians who devote every effort to the R&D, manufacturing and a long term sustainable, perpetual operation for linear motion components.
02 Advantage
- High efficiency and reversibility
- High interchangeability
- High smoothness
- Short lead time, Lower price
- Available for customization
Production Site
CNC Machine Processing | Precision Micro-Grade Tester
Product Offering
Linear Motion Solution | Whole Set Components
The Granville Linear motion system achieved perfect complementation in the machine production industry, including:
Rotary table bearing
Ballscrew support bearing
Linearmotion device
Linear Guide
High precision spindle bearing
With its high precision and excellent performance, the products provide a reliable and durable solution for clients. The products can replace hydraulic components, reduce pollution and noise, and conserve energy.
Granville Linear Motion has resident stock and offers competitive pricing and delivery.
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