Drive-up data for cylindrical roller bearings with a tapered bore

Bore diameter		Reduction of radial internal clearance		Axial drive-up1)2)
d				s
				Taper 1:12		Taper 1:30
>	≤	min.	max.	min.	max.	min.	max.
mm		µm		mm
100	120	50	60	0,79	0,95	2,00	2,35		Applying the recommended values prevents the inner ring from creeping, but does not ensure correct radial internal clearance in operation. Additional influences from the bearing housing fit and temperature differences between the inner and outer rings must be considered carefully when selecting the bearing radial internal clearance class (Selecting internal clearance or preload).
120	140	60	75	0,93	1,10	2,30	2,80
140	160	70	85	1,05	1,30	2,65	3,20
160	180	80	95	1,20	1,45	3,00	3,60
180	200	90	105	1,30	1,60	3,30	4,00
200	225	100	120	1,45	1,80	3,70	4,45
225	250	110	130	1,60	1,95	4,00	4,85
250	280	120	150	1,80	2,15	4,50	5,40
280	315	135	165	2,00	2,40	4,95	6,00
315	355	150	180	2,15	2,65	5,40	6,60
355	400	170	210	2,50	3,00	6,20	7,60
400	450	195	235	2,80	3,40	7,00	8,50
450	500	215	265	3,10	3,80	7,80	9,50
500	560	245	300	3,40	4,10	8,40	10,30
560	630	275	340	3,80	4,65	9,50	11,60
630	710	310	380	4,25	5,20	10,60	13,00
710	800	350	425	4,75	5,80	11,90	14,50
800	900	395	480	5,40	6,60	13,50	16,40
900	1 000	440	535	6,00	7,30	15,00	18,30
1 000	1 120	490	600	6,40	7,80	16,00	19,50
1 120	1 250	550	670	7,10	8,70	17,80	21,70
1 250	1 400	610	750	8,00	9,70	19,90	24,30
1 400	1 600	700	850	9,10	11,10	22,70	27,70
1 600	1 800	790	960	10,20	12,50	25,60	31,20

Valid only for solid steel shafts and general applications.

1. 1) Not valid for the SKF Drive-up Method.
   
2. 2) The listed values are to be used as guideline values only, as it is difficult to establish an exact starting position. Also, the axial drive-up, s, differs slightly between the different bearing designs and series.