Japan TAS Sprocket Hobs
(TAS 3140)

	●	The sprocket hobs are used for hobbing sprockets with tooth profiles (Type S or Type U) to JIS B 1802.
	●	The tooth profile of hobs are accurate unground. Hob accuracy according to our company standard.
	●	In ordering, please specify which type of hole: type A - metric size or type B - inch size are required.
	●	Unground hobs are supplied only.
	●	Keyway to JIS B 4201.

 

　　　　　　　　　　　　　　　　　　　　　　　　　　Unit：mm

Pitch of Chain 链条节距	Outside Dia. 滚刀外径	Overall Length 全 长	Hole Dia.孔径
			A型 公制内孔	B型 英制内孔
6.35	60	60	22	7/8 (22.225)
9.525	65	65
12.7	75	75	27	1 1/16 (26.988)
15.875	85	99
19.05	90	105
25.4	110	125	32	1 1/4 (31.75)
31.75	120	140
38.10	130	170
44.45	160	190	40	1 1/2 (38.1)
50.80	170	210
57.15	190	240
63.5	210	260	50	2(50.8)
76.2	240	310