Page 603 - Rollingbearings

Bearing data

Bearing data, continued

Needle roller bearing inner rings Needle rollers
IR series LR series

Dimension – ISO 3096, except for
standards RN-2x6.3 BF/G2 that is not
standardized

Tolerances Normal F: h6 ISO 3096 Grade 2 for lat end
B: h12 needle rollers
For additional Values: ISO 492 (table 2, page 38), d: K6 Available tolerances (table 14,
information except for raceway tolerances page 604)
† page 35 (table 12, page 604) Values: table 13, page 604

Operating Depends on the bearing type with which the inner ring is combined. –
clearance

Internal clearance Depends on the bearing type with which the inner ring is combined. –

7

Table 5 Table 6
Needle roller gauges Raceway tolerance classes for needle roller and cage assemblies
Gauge type Gauge Shaft Housing/shaft tolerance classes for operating clearance 1)
Nominal diameter
– μm > ≤ lower side medium higher side
mm –
Standard gauges 0/–2
–1/–3
–2/–4 – 80 G6/j5 G6/h5 G6/g6
–3/–5 H6/h5 H6/g5 H6/f6
–4/−6
–5/–7 80 120 G6/h5 G6/g5 G6/f6
120 – G6/h5 G6/g5 G6/f6
– H6/f5 H6/e6

For additional gauges available on request, contact SKF. 1) The envelope requirement (symbol � from ISO 14405-1) is not shown but applies to all tolerance classes.

601