Thread Grinding Wheels for Taper Roller Bearing Rings

Thread Grinding Wheels – Taper Roller Bearing Ring

Good

Being a high speed, high material removal application with stringent demands on the thread profile, generating threads on taps and drills by grinding isn’t an easy job. CUMi‘s Thread grinding wheels are formulated with high purity, Sharp Aluminium Oxide grains combined with a special glassy, fusible bond. This ensures excellent form reten tion of the wheel, which translates into consistent thread profile of components.

Brand: CUMI

Information Material:

Product Catalogue

Thread (pitch, mm)	Good	Better	Best
0.4 – 0.7	AA400 K9 VF920/80	-	-
0.8 – 1.0	AA320 K9 VF920/80	55A320 K9 VF920/80	-
1.25 – 1.5	AA280 L10 V457/80	-	-
1.75 – 2.0	AA240 L9 V457/80	55A220 J9 V457/80	-
2.25	AA220 M9 V457/80	55A220 K9 V457/80	1CUMISA220 K9 V457/80
2.50 – 3.00	AA180 M9 V457/80	55A180 K9 V457/80	1CUMISA180 L9 V457/80
3.25 – 4.00	AA150 M9 V457/80	55A150 L8 V457/80	1CUMISA150 L9 V457/80

Thread (pitch, MM)	TPI	Grading
0.7	36	GC400 I5 VMG
0.8	32	GC400 I5 VMG
1	25	GC320 I5 VMG
1.25	50	GC320 I5 VMG
1.5	17	GC280 I5 VMG
1.75	15	GC280 I5 VMG
2	13	GC220 I5 VMG
2.5	10
3.5	7
4	6

CUMI Code	Grit Range	Diameter		Thickness		Speed	Hardness	Structure
		(mm)	(inch)	(mm)	(inch)	(mps)
55A	120 - 220	200 - 510	8 -20	6 - 40	1/4 to 11/2	upto 80	I - M	4 - 10
AA	120 - 400
RA	Upto 150