Product Details
CBN Whirling Insert Series for Ball Screws
UHD CBN whirling inserts are precision profile cutting inserts for high-speed ball screw raceway forming. Multiple inserts cut synchronously in a whirling cutter head, helping transfer the required raceway profile in a single pass and supporting selected milling-for-grinding replacement processes.
Designed for ball screw manufacturers, machine tool builders, and cutter head integrators, these inserts combine CBN wear resistance with drawing-based profile customization for stable batch machining of internal and external raceways.
CBN Whirling Insert Grades for Ball Screws
| Grade | Feature | Suitable Machining Condition | Applicable Industry |
|---|---|---|---|
| UPN801 | Excellent impact resistance | Suitable for roughing and semi-finishing in high-speed whirling milling | Ball screws |
| UPN201 | Excellent impact resistance | Suitable for roughing and semi-finishing in high-speed whirling milling | Ball screws |
| UPN215 | Excellent wear resistance | Suitable for finishing in high-speed whirling milling; can support turning-for-grinding replacement | Ball screws |
| UPN608S | Balanced wear resistance and impact resistance | Suitable for finishing in high-speed whirling milling; can support turning-for-grinding replacement | Ball screws |
CBN Whirling Insert Specifications for Ball Screws
| Grade | Specification | Size | Contact angle | ||
|---|---|---|---|---|---|
| L | H | S | |||
| UPN801 UPN201 UPN215 UPN608S |
D2.778-R | 23 | 13.5 | 5 | 42-45° |
| D3.175-R | 23 | 13.5 | 5 | 42-45° | |
| D6.35-R | 23 | 13.5 | 8 | 42-45° | |
| D7.144-R | 23 | 13.5 | 8 | 42-45° | |
| D9.525-R | 23 | 13.5 | 10 | 42-45° | |
| D12.7-R | 23 | 13.5 | 15.8 | 42-45° | |
Note: Please contact UHD for specifications not listed above.









