R-type Radial Precision Locking Nut M8-M36 Stainless Steel CNC Ball Screw Round Nut

R-type Radial Precision Locking Nut

The R-type radial precision locking nut is a dedicated round nut for CNC lathe ball screws and bearing assemblies, engineered for reliable anti-loosening and anti-slip performance. Sizes cover M8-M36, available in carbon steel (black oxide) or stainless steel. As an industrial standard fastener, it suppresses vibration-induced loosening and keeps ball screw and bearing assemblies locked steadily over long service periods, widely matched with machine tools and automated transmission assemblies.

Product Features

• Radial locking structure, reliable anti-loosening: The R-type radial locking design distributes locking force evenly, effectively resisting continuous machine vibration, preventing the slip of ball screw and bearing assembly positions, and maintaining preload.
• Complete sizes, easy selection: Standard sizes cover M8-M36 with multiple specifications in stock, matching most small and medium CNC lathes and automated transmission ball screw and bearing assemblies.
• Dual materials for different working conditions: Carbon steel with black oxide surface offers rust resistance, wear resistance and cost-effectiveness; stainless steel resists corrosion, ideal for humid and moisture-rich environments.
• Precision machining, high fit accuracy: Precision-machined threads with stable tolerance mesh smoothly with ball screws; flat end faces ensure accurate bearing positioning.
• Industrial universal type, strong compatibility: Standardized structure for machine tool ball screws, spindles, bearing housings and automated transmission parts.

Core Product Advantages

• Anti-loosening advantage: Radial single-point locking delivers stronger vibration resistance than ordinary round nuts, protecting ball screw and bearing precision.
• Material advantage: Carbon steel black oxide is cost-effective and wear resistant for regular workshops; stainless steel resists acid and alkali corrosion for longer life in humid or corrosive conditions.
• Precision advantage: Precision-formed threads with regular tooth profile and good face parallelism ensure even locking force without off-center damage to bearing faces.
• Cost advantage: Fully standardized M8-M36 production with ample stock shortens procurement lead time and lowers accessory cost.
• Installation advantage: Radial locking screws adjust preload easily, enabling simple assembly, on-site fine adjustment and convenient maintenance.

Processing Technology

1. Raw material cutting: Premium carbon steel or stainless steel bars cut to specification, ensuring uniform blank material free of porosity and cracks.
2. CNC turning: Rough and finish turning of external diameter, end faces and internal thread to control thread precision and face parallelism.
3. Locking slot machining: Machining of the R-type radial locking open slot to keep locking deformation controllable.
4. Thread finishing and deburring: Thread refinement and burr removal to avoid scoring the ball screw and keep the tooth profile complete.
5. Surface treatment: Carbon steel parts are black-oxide treated to form an anti-rust oxide film without affecting thread fit; stainless steel keeps base material properties.
6. Final inspection: Go/no-go thread gauges, dimensional sampling and full appearance inspection before qualified warehousing.

Usage & Installation Notes

• Clean before assembly: Remove chips, oil and impurities from the ball screw thread and nut bore to protect meshing and locking accuracy.
• Locking procedure: Screw the nut to the preset position, then tighten the radial screw with moderate force to avoid slot deformation and thread damage.
• Working condition reminder: Carbon steel black oxide is not suitable for long-term immersion or strong corrosion; choose stainless steel in such conditions.
• Periodic re-check: Under continuous vibration, regularly check locking status and re-adjust the locking screw to prevent loosening.
• Storage: Keep products in a dry, ventilated place and avoid mixing with hard debris to prevent thread damage.

Shipping & Packaging

• Pre-shipment inspection: Go/no-go thread gauge, appearance and dimensional sampling before shipment; unqualified products removed.
• Classified protective packing: Each nut individually bagged to prevent thread knocks and scratches; same specifications grouped together.
• Reinforced carton: Batch products packed in thickened cartons with cushioning material, specifications separated to avoid friction damage.
• Clear marking: Cartons marked with model, material and quantity; English packing list available for foreign trade orders.
• Logistics fit: Supports express, logistics and export packing; small pieces by express, bulk per export standards.

Application Fields

Widely used in CNC lathes, machining centers, automated equipment and precision transmission mechanisms for locking and positioning of ball screws and bearing assemblies, as well as machine tool spindles, conveying equipment and precision machinery industries.