Accuracy of IKO Spherical Bushings

The tolerances of IKO Steel-on-steel Spherical Bushings of the metric series is shown as below.

Tolerances of inner and outer rings of metric series
d or D
Nominal bore dia.
or outside dia.
mm
Δdmp
Single plane
mean bore dia.
deviation
ΔDmp
Single plane
mean outside
dia. deviation
ΔBs or ΔCs
Deviation of a single
inner ring width or
outer ring width
Over Incl. High Low High Low High Low
2.5 6 0 -8 - - 0 -120
6 18 0 -8 0 -8 0 -120
18 30 0 -10 0 -9 0 -120
30 50 0 -12 0 -11 0 -120
50 80 0 -15 0 -13 0 -150
80 120 0 -20 0 -15 0 -200
120 150 0 -25 0 -18 0 -250
150 180 0 -25 0 -25 0 -250
180 250 0 -30 0 -30 0 -300
250 315 0 -35 0 -35 0 -350
315 400 0 -40 0 -40 0 -400
400 500 0 -45 0 -45 0 -450

The tolerances of the GE type are applicable to bushings before splitting the outer ring and after surface treatment.

The tolerances of the SB and SB..A types are applicable to bushings before splitting the outer ring and before surface treatment.

The tolerances of the GE...EC type are applicable to bushings before splitting the outer ring.

The tolerances of the Spherical Bushings of the inch series are shown as below. The tolerances of the bore diameter are applicable to bushings after surface treatment, while other tolerances are applicable to bushings before splitting the outer ring and before surface treatment.

Tolerances of inner and outer rings of inch series SBB
d or D
Nominal bore dia. or
outside dia.
mm
Δdmp
Single plane
mean bore
dia. deviation
ΔDmp
Single plane
mean outside
dia. deviation
ΔBs or ΔCs
Deviation of a single
inner ring width or
outer ring width
Over Incl. High Low High Low High Low
- 50.8 0 -13 0 -13 0 -130
50.8 76.2 0 -15 0 -15 0 -130
76.2 80.962 0 -20 0 -15 0 -130
80.962 120.65 0 -20 0 -20 0 -130
120.65 152.4 0 -25 0 -25 0 -130
152.4 177.8 - - 0 -25 0 -130
177.8 222.25 - - 0 -30 0 -130

Although minor dimensional changes may occur during surface treatment, they have negligible influence on the overall performance.

Share



Related products