When processing large scale bearings and fine finishing bearings, the manufacturers usually use hard turning instead of grinding which is a trend in bearing industry, and it has high performance, low costs, traditional technology can’t go beyond that.
With the superhard cutting tools widely used in different industries, turning instead of grinding will not be a difficult problem. As the leader of professional superhard cutting tools, Halnn has professional cutting tools grades for hard turning bearings, which not only has stable cutting performance, but also promises high roughness, and help the manufacturers to reduce the production costs. The cbn inserts and corresponding cutting data will be as below:
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Insert Grade
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Machining Hardness
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Processing Condition
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Machining Materials
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Machining Type
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Cutting Speed Vc(m/min)
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Depth of Cut(mm)
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Feed Rate Fr(mm/r)
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BN-S20
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HRC45~68
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Roughing
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50~200
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0.5~10
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0.15~1
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Semi-finishing
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60~250
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≤1
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0.05~0.35
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BN-S200
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HRC45~68
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Semi-finishing
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50~200
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1~10
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0.15~1.0
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Fine Finishing
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60~250
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≤1
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0.05~0.35
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BN-H21
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HRC62~68
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Fine Finishing
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60~250
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≤0.5
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0.05~0.35
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BN-H10
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HRC45~68
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Fine Finishing
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60~250
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≤1
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0.05~0.35
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BN-H20
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HRC45~63
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Fine Finishing
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60~180
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≤1
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0.05~0.35
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BN-H11
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HRC45~63
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Fine Finishing
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90~200
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≤1
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0.05~0.35
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The solutions details on processing bearings with Halnn CBN inserts as follows:
1.Halnn Welded PCBN insert processing Metallurgical bearings
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BN-H11 PCBN Inserts Processing Bearings
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Machining Part:
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Bearings
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Machining Materials:
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GCr15
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Workpiece Hardness:
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HRC62
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Insert Grade:
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BN-H11 DNGA150408
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Cutting Type:
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Dry Cutting
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Cutting Parameters:
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ap=2.5mm,Fr=0.12mm/r,Vc=140m/min
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Machining Effect
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Insert Materials
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Linear Speed Vc(m/min)
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Life/Edge
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Roughness
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Halnn BN-H11
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140
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12
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Ra 0.8~1.6
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Other PCBN Insert
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140
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10
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Ra 0.8
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2.Halnn Solid CBN insert for processing Wind Power Bearings
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Machining Part:
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Wind Power Bearing
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Machining Materials:
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42CoMo
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Workpiece Hardness:
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HRC47~55
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Insert Grade:
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BN-S200 RCGX090700
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Cutting Type:
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Dry Cutting
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Cutting Data:
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ap=0.5mm,Fr=0.45mm/r,Vc=110m/min
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Machining Effect
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Insert Materials
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Linear Speed
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Life/Cutting Edge
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Roughness
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Halnn BN-S200
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110 m/min
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8 pieces
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Ra 0.8
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Ceramic Insert
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90 m/min
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1 piece
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Ra 1.6
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