Ball Screw
Repair Kits
Factory-Grade
Restore ±0.001mm positioning accuracy with our precision-engineered repair kits — G10 bearing balls, POM-C recirculators, and CMM-verified preload shims. Up to 50,000km service life guaranteed.
≤0.01mm
CMM 5μm Accuracy
Complete Precision Solutions
From certified repair kit assembly to full screw remanufacturing, stamping die fabrication, and injection mold production — SSP Precision delivers traceable, validated, and OEM-grade output at every stage of the manufacturing lifecycle.
Ball Screw Repair Kit Assembly
Core Service · Motion RestorationOur repair kits are precision-matched component sets designed to fully restore ball screw assemblies to OEM performance specifications. Every kit is compiled in an ISO Class 5 cleanroom and individually verified by CMM before dispatch. We stock standard Hiwin, THK, and NSK-compatible configurations, and produce bespoke kits to customer-supplied drawings within 5–7 working days.
Full Ball Screw Remanufacturing
Advanced Service · OEM-Grade RebuildComplete end-to-end screw shaft re-grinding and nut rebuild service for worn or damaged ball screw assemblies. Our 5-axis CNC grinding machines restore thread form and lead accuracy to within ±0.02mm per 300mm — meeting C3 or C5 accuracy classes. Runout is corrected to ≤0.02mm/m with laser interferometry feedback in real time. Optional DLC PVD coating extends wear life by 3–5×.
Quality Validation & Certification
QA Service · ISO-Traceable InspectionEach repair kit or remanufactured assembly passes a comprehensive, multi-stage inspection protocol before release. Our in-house Zeiss CMM provides 3D dimensional verification to 1.5μm resolution. Salt spray testing (ASTM B117, 1000h) validates corrosion performance, and accelerated wear cycle testing simulates 50,000km rated service life. Every shipment carries a traceable lot number laser-marked on all steel components.
OEM Custom Kitting
OEM / Supply Chain · White-Label ReadyWe engineer bespoke repair kits matched to OEM machine builder specifications, including non-standard ball diameters (1.0–12.7mm), proprietary nut thread forms, and custom recirculator geometry. White-label and custom-branded packaging is available for distribution partners and machine service networks. Minimum order quantities are flexible for prototype and high-volume supply chain programmes alike.
Stamping Die Manufacturing
Tooling · Progressive & Transfer DiesProgressive and transfer stamping die design and manufacture for high-volume metal forming applications. Punches and dies are machined from D2, SKD11, and HSS M2 tool steels using wire EDM and 5-axis CNC grinding to achieve ±0.002mm clearance tolerances. Full die tryout is conducted on our 80–400-tonne press fleet with stamped sample approval before final handover.
Injection Mold Services
Tooling · Micro, Over & Insert MoldingPrecision injection mold design and manufacture covering micro-molding (shot weights from 0.1g), green mold rapid-tooling, over-molding, and insert molding for complex multi-material components. Mold bases are machined to NAK80 and H13 steel with P20 cavity steels. We manage full T1 sampling and process qualification, supplying PPAP documentation for automotive and medical customers.
Precision Components & Parts
Our product portfolio spans the full spectrum of precision motion and tooling components — every part manufactured to exacting tolerances with full material traceability.
Engineering Specifications
Every component is engineered to exceed OEM performance — validated by ISO-traceable measurement and certified by independent third-party testing.
| Category | Parameter | Standard Grade | Precision Grade | Validation | Standard |
|---|---|---|---|---|---|
| Material Properties | |||||
| Screw Shaft | Material | 55CrMo Alloy | SCM440 VAR | PMI Spectrometry | DIN 17200 |
| Hardness | HRC Rating | 58–62 HRC | 60–64 HRC | Rockwell C Scale | ISO 6508 |
| Mechanical Performance | |||||
| Lead Accuracy | Per 300mm | ±0.05mm | ±0.02mm | Laser Interferometer | JIS B1192 |
| Backlash | Axial Play | ≤0.08mm | ≤0.03mm | Dial Indicator | DIN 69051 |
| Component Quality | |||||
| Ball Grade | Spherical Grade | G16 | G10 | Microscopic Inspection | ISO 3290 |
| Recirculator | Material | POM-C | Bronze-PTFE | Wear Testing | ASTM D3702 |
| Durability | |||||
| Service Life | Distance (km) | 20,000 km | 50,000 km | Accelerated Life Test | ISO 3408-5 |
| Wear Rate | μm/1000km | ≤15 μm | ≤5 μm | Profile Measurement | DIN 51517 |
Tolerance Standards
We manufacture to ISO 2768-f (metals) and ISO 2768-m (plastics) across all component sizes. Our CMM verification ensures every part ships within certified limits.
Tolerance by Nominal Size — Metals
Plastics (ISO 2768-m)
Available Surface Finishes
Precision surface treatment for optimal corrosion resistance, wear performance, and aesthetics — matched to your application.
As Machined
Direct from CNC — tool marks visible. Most economical option. Ra 1.6–6.3μm typical. Suitable for non-aesthetic internal components.
Anodizing
Electrochemical oxide layer on aluminum. Increases surface hardness to 400–500HV, excellent corrosion resistance, dyeable for colour coding.
Polishing
Mirror-grade surface finishing to Ra <0.1μm. Reduces friction, improves flow characteristics in fluid systems, and enhances visual appeal.
Brushed Finish
Fine parallel grain texture. Reduces visible fingerprints and scratches, improves grip on exterior surfaces, and gives a premium industrial look.
Sandblasting
High-pressure abrasive media creates uniform matte texture. Removes scale and oxides, creates ideal bonding surface for coatings and adhesives.
Electropolish
Electrochemical material removal achieves Ra <0.2μm. Removes embedded particles, enhances passivation of stainless steel, ideal for medical & pharma.
How We Engineer Your Repair Kit
Material Selection & Certification
SCM440 VAR steel certified by ICP-MS analysis. Full heat number tracking per EN 10204 3.1. PMI spectrometry on every batch before machining begins.
CNC Precision Grinding
5-axis CNC grinding restores screw shaft lead accuracy to ±0.02mm per 300mm. Runout corrected to ≤0.02mm/m using laser interferometry feedback.
CMM Dimensional Verification
3D coordinate measuring machine at 1.5μm resolution verifies all critical dimensions. Full report generated and archived for traceability.
Dynamic Load Testing
Accelerated life cycle testing simulates 50,000km service under rated axial load. Thermal compensation verified. Backlash measured and certified.
ISO Class 5 Clean Packaging
Final kitting in ISO Class 5 cleanroom. Laser marking for lot traceability. Anti-corrosion packaging rated for 24-month shelf life.
Materials & Capabilities
From tool steels to engineering plastics — our manufacturing expertise spans 150+ certified materials across every precision application.
Bearing Steel
GCr15, SUJ2, 52100 steel for maximum hardness, fatigue life, and load capacity.
Tool Steel
D2, SKD11, H13, M2 HSS for stamping dies, punch-and-die sets, and wear components.
Alloy Steel
SCM440, 55CrMo, 40Cr for screw shafts, precision shafts, and structural components.
Stainless Steel
316L, 304, 17-4PH for corrosion resistance in food-grade, medical, and marine environments.
Aluminium Alloys
6061-T6, 7075, 2024 for lightweight structural parts, housings, and prototype components.
Engineering Plastics
POM-C, PTFE, PEEK, PA66 for self-lubricating recirculators, bushings, and slider components.
Bronze & Copper Alloys
CuSn8, CuZn39Pb3 for high-load bronze-PTFE recirculators and self-lubricating bearings.
DLC & Surface Coatings
Diamond-like carbon, TiN, CrN PVD coatings for extended wear resistance and reduced friction.
Built on Precision,
Trusted by Industry
Since 2008, Dongguan Shuangshun Precision (SSP) has served global OEMs and Tier-1 suppliers with vertically integrated precision manufacturing — from raw material to validated, packaged component.
- ISO 9001:2015 Certified — quality management system covering all manufacturing and inspection processes
- Same-Day Shipping for critical repairs from our Dongguan facility for stock repair kits
- Full Material Traceability — heat number tracking and PMI analysis per EN 10204 3.1
- OEM & Custom Engineering — white-label kitting and bespoke specification matching for machine builders
- Global Export — shipping to 40+ countries with HS code classification support and export documentation
Ready to Restore
Your Ball Screw Performance?
Get a free engineering consultation and same-day quote on ball screw repair kits tailored to your machine specifications.