3-Jaws Standard Self Centering Chuck

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Product Description

SELF CENTERING CHUCKS

MTC brand chucks are widely accepted since 1959. These are economically priced and offer best value for the money spent.

Bodies of these chucks are made out of alloyed cast iron for maximum wear resistance. The bodies have hardness of 190 to 210 BHN. Steel and SG Iron Bodies are also available.

Jaws are made out of Case hardening steel and are suitably heat treated. The gripping portions have hardness of 57 to 62 HRC. These are precisely ground for perfect fitting in the body.

Pinions are manufactured out of case hardening steel and are suitably heat treated. These have hardness of to 43 to 47 HRC.

Scroll is made out of high strength steel and is suitably hardened to 38 to 45 HRC for maximum wear resistance. The threads of scroll are precisely ground which provide long service life to the chuck.

Operating key of suitable strength is provided with each chuck.

Mounting bolts & Inspection report is provided with each chuck.

3-JAWS STANDARD SELF CENTERING CHUCK

ACCURACY OF SELF CENTRING CHUCKS

Test No.

Test Applied

Over

Size of chuck Upto and Including

Permissible Deviation
in mm

Accuracy of Grip on Test Bar

(Using Master Pinion)

	160mm	X=50mm
160mm	250mm	X=50mm
250mm	400mm	X=75mm
400mm	600mm	X=100mm

0.040

0.060

0.075

0.100

Accuracy of Grip on Test Bar

(Using Any Pinion)

	160mm	X=50mm
160mm	250mm	X=50mm
250mm	400mm	X=75mm
400mm	600mm	X=100mm

0.080

0.100

0.150

2
&
3

Accuracy of Grip on Test
Rings when gripped
internally or Externally

(Using Master Pinion)

	160mm
160mm	250mm
250mm	400mm
400mm	600mm

0.030

0.040

0.060

0.075

2
&
3

Accuracy of Grip on Test
Rings on the Face of Ring

	160mm
160mm	250mm
250mm	400mm
400mm	600mm

0.025

0.030

0.040

0.050

Concentricity of Outside
Diameter

	160mm
160mm	250mm
250mm	400mm
400mm	600mm

0.030

0.040

0.060

0.080

SPECIFICATIONSp Capacity of Self Centring Chucks

Size in mm	A (mm)		B (mm)		C (mm)		D (mm)		E (mm)
Size in mm	Min.	Max	Min.	Max	Min.	Max	Min.	Max	Min.	Max
60	1	16	20	33	35	50	20	35	30	50
80	2	27	22	45	40	69	24	50	40	71
100	3	33	25	60	55	87	32	70	60	93
125	3	42	34	80	70	112	38	90	80	120
160	3	68	42	105	90	154	48	110	100	160
200	4	90	52	130	110	194	60	140	120	200
230	5	100	56	150	115	220	65	155	135	230
250	5	110	62	165	120	240	75	170	145	250
270	7	130	70	185	135	260	85	195	155	270
315	10	180	80	200	150	299	96	225	165	315
400	20	200	100	260	190	380	120	290	205	400
500	35	260	135	300	225	480	155	370	265	500
600	50	350	170	400	245	580	170	470	365	600

Maximum Safe Recommended Revolutions per minute (RPM) of Self Centring Chucks

Size in mm	60	80	100	125	160	200	230	250	270	315	400	500	600
Cast Iron Body	3500	3000	2500	2000	1700	1300	1200	1100	1000	800	700	500	400
Steel Body	4500	4000	3800	3200	2500	2000	1800	1600	1500	1300	1000	800	700