GN 000.4Coupling Attachments

Coupling Attachments

Steel, for Safety Handwheels, with Friction Bearings

Technical datasheet

GN 000.4

Catalogue	Nominal size	d₁ ø Handwheel GN 321 GN 322 GN 323	d₂ H7 Bore with keyway	d₃	d₄ max.	d₅ Minimum-ø of handwheel hub	d₆ -0.03 Bore Ø of handwheel hub H7	l₁	l₂ ±0.1 Length of handwheel hub	l₃	t	w min.

GN 000.4-1-K12	1	125 140	K 12	28	17	29	25	28.5	18 19	5	26	4
GN 000.4-2-K14	2	140 160	K 14	32	21	33	29	32.5	19 20	6	30	4
GN 000.4-2-K16	2	140 160	K 16	32	21	33	29	32.5	19 20	6	30	4
GN 000.4-3-K18	3	200	K 18	38	26	39	35	36.5	24	6	36	4
GN 000.4-3-K20	3	200	K 20	38	26	39	35	36.5	24	6	36	4
GN 000.4-4-K22	4	250	K 22	45	30	46	41	47.5	28	12	42	4

Steel

Nitrided
Bearing surface ground resp. PTFE coated

The PTFE coated surfaces of the coupling attachments GN 000.4 provide minimal friction between bearing surfaces even when lubrication is being neglected.

An oil hole is provided which in the completely assembled safety handwheel connects with the handwheel hub.

The coupling attachment is axially secured in the handwheel hub by a clamp nut.