300mm±50μm
* C5 Precision (Ground):
0-100mm: ±18μm; 100-200mm: ±20μm; 200-315mm: ±23μm
Note: C7 precision is calculated based on repeat positioning accuracy.
Ball Screw Set – SFU1605/2005 with BK12/BK15 End Machined + Nut Housing & Supporter
| Ball Screw Shaft | 1605 / 1610 / 2005 |
| Nut | SFU1605 / SFU2005 |
| End Bearings | BK12/BK15 + BF12/BF15 |
| Nut Housing | Standard SFU housing |
| Supporter | Matching supporter for stability |
| Material | Hardened steel |
| Lead Accuracy | C7 / C5 optional |
| Operating Temp | –20 °C ~ +80 °C |
| Lubrication | Grease or oil recommended |
| Length | Customizable |
5.0
design customization
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Product detail
This Ball Screw Set is a complete solution for precision linear motion applications. It includes:
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Ball Screw Shafts: 1605 / 1610 / 2005 diameter/lead sizes, available in high-precision rolled or ground versions.
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End Bearings: BK12/BK15 paired with BF12/BF15 supports for smooth rotation and minimal deflection.
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Ball Screw Nuts: SFU1605 / SFU2005 high-precision recirculating nuts.
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Nut Housing & Supporter: Complete assembly for easy installation and rigid support.
This kit ensures accurate linear motion, low backlash, and stable high-speed performance. It is widely used in CNC machinery, automation equipment, robotics, 3D printers, and linear actuators.
⚙️ Key Features
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Complete Assembly Kit: All essential components included for quick installation.
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High Precision: SFU series nuts and precision-machined screws for minimal backlash.
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Smooth & Quiet Motion: Recirculating ball design with low friction and vibration.
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Rigid Support: BK/BF end bearings and supporter blocks ensure stability under load.
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Durable Materials: Hardened steel screws, nuts, and precision bearing housings.
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Flexible Options: Multiple shaft diameters and lead sizes to suit your application.
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Plug & Play: Pre-machined ends simplify integration into linear motion systems.
Applications
CNC milling and lathe machines
Automation and robotic linear systems
3D printers and laser cutters
Precision positioning stages
Packaging and pick-and-place machinery
Semiconductor and optical equipment
Laboratory automation instruments
Ball Screw Customization Process
STEP 1. Select Screw Lead
*Screw Outer Diameter + Lead = Screw Model
Example: 16 (Diameter) + 05 (Lead) = SFU1605
* Lead Definition: Linear travel distance per nut rotation.
* Lead Options:
Diameter6mm：0601 0601
Diameter8mm：0801 0802
Diameter10mm：1002 1004
Diameter12mm：1202 1204 1205 1210
Diameter16mm：1604 1605 1610 1616 1620
Diameter20mm： 2004 2005 2010 2020 2040
Diameter25mm：2504 2505 2510 2525
Diameter32mm：3205 3210 3220 3232
Diameter8mm：0801 0802
Diameter10mm：1002 1004
Diameter12mm：1202 1204 1205 1210
Diameter16mm：1604 1605 1610 1616 1620
Diameter20mm： 2004 2005 2010 2020 2040
Diameter25mm：2504 2505 2510 2525
Diameter32mm：3205 3210 3220 3232
Diameter40mm：4005 4010 4020 4040
Diameter50mm：5005 5010 5020 5050
Diameter63mm：6310 6320
Diameter80mm：8010
Diameter50mm：5005 5010 5020 5050
Diameter63mm：6310 6320
Diameter80mm：8010
STEP 2. Select the Precision of the Screw Rod
300mm±50μm
* C5 Precision (Ground):
0-100mm: ±18μm; 100-200mm: ±20μm; 200-315mm: ±23μm
STEP 3. Select the Nut
Types:
*Single Nut; *Extended Double Nuts; *High - Load - Type Double - Lead Nuts
Critical Parameters for Replacement:
*Nut outer diameter, *mounting hole angle, *center distance range, *mounting hole size range.
(Skip if not replacing nuts)
Critical Parameters for Replacement:
*Nut outer diameter, *mounting hole angle, *center distance range, *mounting hole size range.
(Skip if not replacing nuts)
SFU Ball Screw Nut Model No.(plastic deflector or metal deflector )
SFU1204-3;SFU1605-3;SFU1605-4; SFU1610-2; SFU2005-3;SFU2005-4;SFU2505-3;
SFU2505-4;SFU2510-4;SFU3205-3;SFU3205-4;SFU4005-4;SFU4010-4; SFU5010-4;
SFU6310-4;SFU8010-4；
SFK Ball Screw Model No.
SFK0601;SFK0801;SFK0802;SFK082.5;SFK1002;SFK1004;SFK1202;SFK1402；
SFS Ball Screw Model No.
SFS1205;SFS1210;SFS1605;SFS1610;SFS1616;SFS1620;SFS2010;SFS2510;SFS2525;SFS3210;SFS4010；
SFI Ball Screw Model No.
SFI1605;SFI1610;SFI2005;SFI2505;SFI2510;SFI3205;SFI3210;SFI4005;SFI4010；
SFE Ball Screw Model No.
SFE1616;SFE2020;SFE2525;SFE3232;SFE4040；
SFY Ball Screw Model No.
SFY1616;SFY2020;SFY2525;SFY3232;SFY4040；
SFA Ball Screw Model No.
SFA1610;SFA1620;SFA2010;SFA2510;SFA2525；
SFU1204-3;SFU1605-3;SFU1605-4; SFU1610-2; SFU2005-3;SFU2005-4;SFU2505-3;
SFU2505-4;SFU2510-4;SFU3205-3;SFU3205-4;SFU4005-4;SFU4010-4; SFU5010-4;
SFU6310-4;SFU8010-4；
SFK Ball Screw Model No.
SFK0601;SFK0801;SFK0802;SFK082.5;SFK1002;SFK1004;SFK1202;SFK1402；
SFS Ball Screw Model No.
SFS1205;SFS1210;SFS1605;SFS1610;SFS1616;SFS1620;SFS2010;SFS2510;SFS2525;SFS3210;SFS4010；
SFI Ball Screw Model No.
SFI1605;SFI1610;SFI2005;SFI2505;SFI2510;SFI3205;SFI3210;SFI4005;SFI4010；
SFE Ball Screw Model No.
SFE1616;SFE2020;SFE2525;SFE3232;SFE4040；
SFY Ball Screw Model No.
SFY1616;SFY2020;SFY2525;SFY3232;SFY4040；
SFA Ball Screw Model No.
SFA1610;SFA1620;SFA2010;SFA2510;SFA2525；
STEP 4. Select the Mounting Seat
Impact: Determines end machining dimensions of screw.
Module:
Module:
* Standard Mounting Seat (BKBF)
* Horizontal Mounting Seat (EKEF)
* Vertical Mounting Seat (FKFF)
* Vertical Mounting Seat (FKFF)
Ball Screw End Supports Model No.
BK10 BF10, BK12 BF12, BK15 BF15, BK17 BF17, BK20 BF20, BK25 BF25, BK30 BF30, BK35 BF35, BK40 BF40；
EK06 EF06, EK08 EF08, EK10 EF10, EK12 EF12, EK15 EF15, EK20 EF20; EK25 EF25；
FK06 FF6, FK08 FF08,FK10 FF10, FK12 FF12, FK15 FF15, FK20 FF20, FK25 FF25, FK30 FF30；
BK10 BF10, BK12 BF12, BK15 BF15, BK17 BF17, BK20 BF20, BK25 BF25, BK30 BF30, BK35 BF35, BK40 BF40；
EK06 EF06, EK08 EF08, EK10 EF10, EK12 EF12, EK15 EF15, EK20 EF20; EK25 EF25；
FK06 FF6, FK08 FF08,FK10 FF10, FK12 FF12, FK15 FF15, FK20 FF20, FK25 FF25, FK30 FF30；
STEP 5. How to Calculate the Length
1. Total Screw Length.
2. Center Distance Between Mounting Seats.
3. Effective Thread Length.
4. Nut Free Stroke = Effective Thread Length - Nut Length
2. Center Distance Between Mounting Seats.
3. Effective Thread Length.
4. Nut Free Stroke = Effective Thread Length - Nut Length
* Thread Length = Total Screw Rod Length - Processing Lengths of Both Ends
* Absolute Stroke = Thread Length - Nut Length - Mounting Seat Shrinkage - Flange Fixing Screw Space
* Absolute Stroke = Thread Length - Nut Length - Mounting Seat Shrinkage - Flange Fixing Screw Space
STEP 6. Select the Nut Seat
(Bring your own workpiece or don't need a nut seat to skip)Types:* Aluminum Nut Seat
* Steel Nut Seat
* Steel Open - Type Nut Seat
Ball Screw Nut Housings Model No. (Aluminium or Iron)
DSG12H(1204),DSG16H(1605/1610), DSG20H(2005/2010), DSG25H(2505/2510),
DSG32H(3205/3210),DSG40H(4005/4010),DSG50H(5005/5010)；
Types:
* Aluminum Nut Seat
* Steel Nut Seat
* Steel Open - Type Nut Seat
* Steel Nut Seat
* Steel Open - Type Nut Seat
Ball Screw Nut Housings Model No. (Aluminium or Iron)
DSG12H(1204),DSG16H(1605/1610), DSG20H(2005/2010), DSG25H(2505/2510),
DSG32H(3205/3210),DSG40H(4005/4010),DSG50H(5005/5010)；
DSG12H(1204),DSG16H(1605/1610), DSG20H(2005/2010), DSG25H(2505/2510),
DSG32H(3205/3210),DSG40H(4005/4010),DSG50H(5005/5010)；
STEP 7. Select the Coupling
Key Parameters:
* Coupling Length
* Inner Diameter d1: For motor output shaft connection
* Inner Diameter d2: For screw rod connection
* Outer Diameter
Key Parameters:
* Coupling Length
* Inner Diameter d1: For motor output shaft connection
* Inner Diameter d2: For screw rod connection
* Outer Diameter
End Machining Options:
Turning, milling flat, drilling and tapping, keyway, etc
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