Drive-up data for CARB bearings with a tapered bore



            


Bore diameter
Reduction of
radial internal
clearance
Axial drive-up1)2) Lock nut
tightening angle
2)3)
d
s α
  Taper
1:12
Taper
1:30
Taper 1:12
> min. max. min. max. min. max.  
mm
µm
mm


°
24 30 10 15 0,25 0,29 100 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).
30 40 15 20 0,30 0,35 0,75 0,90 115
40 50 20 25 0,37 0,44 0,95 1,10 130









50 65 25 35 0,45 0,54 1,15 1,35 115
65 80 35 40 0,55 0,65 1,40 1,65 130
80 100 40 50 0,66 0,79 1,65 2,00 150









100 120 50 60 0,79 0,95 2,00 2,35
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 00 120 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



  1. 1) Not valid for the SKF Drive-up Method.
  2. 2) The listed values are valid only for solid steel shafts and general applications. They 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 bearings series.
  3. 3) Valid only where SKF adapter sleeve assemblies or lock nuts with thread pitches in accordance with ISO 2982-1 or ISO 2982-2, respectively, are used.

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