Precision live center Series 807

Type	MK	D	d	d1	Lges	L	l1	l2	Federweg [mm]	Drehzahl max. [1/min]	Werkstück- gewicht max. [kg]	Rundlauf- Abweichung max. [mm]
Type	MT	D	d	d1	Lges	L	l1	l2	Spring travel [mm]	Rotational frequency max. [1/min]	Workpiece weight max. [kg]	Concentricity run-out max. [mm]
837	3	60	28	23,83	188	107	31	76	3	5000	250	0,005
847	4	68	35	31,27	225	120	37	83	3	4000	550	0,005
857	5	92	50	44,4	275	146	51	95	3	3500	1000	0,005

Axiale Spannkraft-Anzeige durch Punktematrix		MK3	MK4	MK5
Axial clamping force indication through dot pattern		MT3	MT4	MT5
	∎	0-340	0-360	0-510	[daN]
	∎ ∎	340-650	360-690	510-990	[daN]
	∎ ∎ ∎	650-950	690-1000	990-1430	[daN]

Product features

Spring-loaded center with pressure indicator for visual control of clamping force
Visual display of clamping pressure during machining
To use as counter tip for face drivers or for compensating length deviation
Extremely rigid bearing set up with additional shank support
Center point made of fully hardened tool steel
High runout accuracy
Maintenance-free permanent lubrication
Rotary shaft seal prevents ingression of dirt and coolant
Complete tool hardened and ground