With the continuous development and innovation of the tool industry, the company has finally developed a high-efficiency cutting tool and realized the “replacement grinding by turning” process. The “turning for grinding instead of grinding” process not only avoids grinding burns, but also mainly performs dry cutting, achieving clean production and creating a good processing environment.Tool materials that can be used to “turn and grind instead of grinding” slewing bearings are coated, ceramic and CBN. In order to reduce the production cost, different parts need to choose different tool materials. For example, the slewing bearing with larger diameter gears is better to choose more wear-resistant ceramic tools and CBN tools.Secondly, ceramic tools and CBN tools can be used in combination, among which ceramic tools are brittle. CBN tool hardness is second only to diamond. It is called superhard tool and can process ferrous metal above HRC45, especially in the field of hardened steel.

2.Detailed Data of PCBN Turning Tool

Type	Dimension					Standard Chamfer	Grades
	L(mm)	φI.C(mm)	S(mm)	φd(mm)	r(mm)		BN-H05	BN-H10	BN-H21
WNGA080404-6S	8.7	12.7	4.76	5.16	0.4	S01015 S01020 S01025 S02020 S02025	◎	◎	◎
WNGA080408-6S	8.7	12.7	4.76	5.16	0.8		◎	◎	◎
WNGA080412-6S	8.7	12.7	4.76	5.16	1.2		◎	◎	◎

3.Halnn Tools CBN and PCD Cutting Tool

4.Application Case of PCBN Turning Tool Machining Bearing

BN-H10 PCBN Turning Tool Interrupt Cutting GCr15SiMn Hardened Steel Wind turbine bearing

BN-H10 PCBN Turning Tool processing bearings
Machining Part:Slewing bearing ring
Workpiece Hardness:HRC 55
Cutting Type:Dry Cutting
Machining Materials:GCr15SiMn
Inserts Grade:BN-H10
Cutting Parameters: ap=0.5mm,Fr=0.45mm/r,Vc=110m/min.
Testing Performance
Inserts Materials	Linear Speed (m/min)	Lifetime/edge	Roughness
Halnn BN - H10	110	8	Ra0.8
Ceramic Inserts	90	1	Ra1.6

5.Service