Description & Features

The Sonalkar long Milling Arbors (LM Arbors) are available with various tapers such as ISO, BT and Morse Taper, to suit a variety of machine spindles. Also length of the LM Arbors ranging from 100 to 800 mm covers almost all available milling machines.
The LM Arbors are sturdy in construction and can withstand wear and tear, and heavy loads on cutters. The LM Arbors are made of forged manganese chromium alloy (20 Mn Cr5) steel hardened to 58-62 HRC.

7/24 tapper	D1	e	I1	D2 Min	d h6	63	100	160	200	250	315	400	500	630	800	1000	d1	I2	z
30	50	8	20	27	16	X	X	X	X	X	X						M 16 x 1.5	16	0.006
				3.4	22	X	X	X	X	X	X	X						M 20 x2	22
				41	27	X	X	X	X	X	X	X					M 24 x2	28	0.008
				27	16	X	X	X	X	X	X	X					M 16 x5	16	0.006
				34	22	X	X	X	X	X	X	X	X				M 20 x 2	22
40	63	10	25	41	22	X	X	X		X	X	X	X				M 24 x2	28
				47	32	X	X	X		X	X	X	X				M 27 x2	32	0.008
				55	40		X	X			X	X	X				M 33 x2	40
				34	22	X	X	X	x	x	X	X	X	X			M 20 x 2	22	0.006
				41	27	X	X	X			X	X	X	X			M 24 x2	28
50	100	12	30	47	32	x	X	X			x	X	X	X			M 27 x 2	32
				55	40		x	x				X	X	X			M 33x 2	40
			69	50							X	X	X	X		M 39 x 3	46
				84	60							X	X	X	X	X	M 45 x 3	56	0.008
				69	50									X	X	X	M 39x 3	46
60	160	16	40	84	60									x	X	X	M 45 x3	56
				109	80										X	X	M 56 x 4	63
				134	100										x	x	M 68x 4	70

Care in use

Thoroughly clean the spindle of the milling machine and the mounting taper of the LM Arbors before mounting.
Also clean the bearing bushes before mounting them on the brackets.
Use the correct type of LM Arbor – RH or LH threading depending on the direction of rotation of the spindle for a particular job operation.
Use properly the keys provided to hold the cutter in position. Fix the position of the cutter by arranging spacers for required distances.
When not in use, keep the LM Arbors on a rack in a vertical position to avoid bending.