H series

Straight bore mounting

Pos. in hub	ø Bore	Hub
No.	Min-Max	Max l *	d2	d3	d4	n **
6	0.30 - 0.35	1.22	1.02	0.98	1.61	3
6	0.37 - 0.63	1.22	1.02	0.98	1.61	3
6	0.41 - 0.75	1.61	1.34	0.98	1.61	3
8	0.37 - 0.67	1.22	1.10	1.57	2.20	4
8	0.50 - 0.83	1.65	1.38	1.57	2.20	4
8	0.67 - 0.98	2.36	1.61	1.57	2.20	4
10, 12, 14	0.37 - 0.59	1.22	1.10	2.95	3.54	5
10, 12, 14	0.49 - 0.87	1.65	1.57	2.95	3.54	5
10, 12, 14	0.87 - 0.98	2.05	1.77	2.95	3.54	5
10, 12, 14	0.87 - 1.10	2.44	2.01	2.95	3.54	5
10, 12, 14	1.06 - 1.57	3.23	2.87	2.95	3.54	5
10, 12, 14	1.57 - 1.89	4.41	3.54	2.95	3.54	10

* To obtain a longer boss length it is possible to add a boss extension. Universal boss extensions are available in lengths of 0.39, 0.79 and 1.57 inch, and can be combined to a given length.
** n is the number of bolts in the bolt circle d4

Technical information on our 6 bladed hubs (PDF)
Technical information on our 8 bladed hubs (PDF)
Technical information on our casted bosses (PDF)

Conical bore

If you need a conical bore, please contact your local distributor.
When we speak of conical bores, we use the following terms:

Bore (i.e. ø0.63)		Cone (i.e. 1:5)
Cone Length (i.e. 0.87 inch)		l (i.e. 2.44 inch)
		Counterbore (i.e. ø1.42 inch)