Catalogue SKF spherical plain bearings & rod ends (4407/II E)
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2 Recommendations
3 Product data
1 Product information
Page
Page
Rod ends requiring maintenance
4
16
Table 4
Steel-on-steel rod ends
Steel-on-bronze rod ends
Radial internal
Bore
Radial internal
diameter
clearance
diameter
clearance
"o
Normal
"o
Normal
over
incl.
min
max
over
incl.
min
max
mm
|jm
mm
|jm
12
16
68
6
5
50
12
20
20
82
6
10
7
60
20
35
25
100
10
18
8
75
35
60
30
120
18
30
10
90
60
90
36
142
90
140
42
165
140
240
50
192
Radial internal clearance
The steel-on-steel rod ends have radial internal clearance corresponding to the Normal clearance values quoted in ISO 12240-4:1998 which are given in Table E .
Materials
The materials used for the manufac­ture of SKF rod ends requiring main­tenance are listed in Table ||.
Details of the materials used for the steel-on-steel spherical plain bearings incorporated in SKF rod ends will be found under the heading "Materials" on page 61.
The bearings incorporated in the steel-on-bronze rod ends have an outer ring of tin bronze. The inner ring is of carbon chromium steel and is hardened, ground and polished.
Radial internal clearance
Permissible operating temperature range
The operating temperature range for the rod ends requiring maintenance depends on the rod end, the bearing incorporated, the bearing seals and the grease used for lubrication. The actual limits are given in Table [6 .
Rod end housing materials
SA(A) 6 to 80 SI(A) 6 to 80
Heat treatable steel C45V 1.0503 zinc coated and chromatized
Heat treatable steel C45V 1.0503 zinc coated and chromatized
Construction steel S 355 J2G3 (St 52-3 N) 1.0570 Construction steel S 355 J2G3 (St 52-3 N) 1.0570
Heat treatable steel C45N 1.0503
Spheroidal graphite cast iron GGG40 -
Heat treatable steel C45N 1.0503
Spheroidal graphite cast iron GGG40 -
Heat treatable steel C45N 1.0503
Spheroidal graphite cast iron GGG40 -
Automatic steel 9 SMnPb 28 K 1.0718 zinc coated and chromatized
Heat treatable steel C35N 1.0501 zinc coated and chromatized
Automatic steel 9 SMnPb 28 K 1.0718
zinc coated and chromatized
Heat treatable steel C35N 1.0501
zinc coated and chromatized
SC SCF
SIQG
SIJ
SIR
SAKAC SIKAC
25 to 80 20 to 80
12 to 50 63 to 200 12 to 50
60 to 100 20 to 50 60 to 120
5 to 12
14 to 30
5 to 12
14 to 30
Note
The load carrying capacity of rod ends is reduced at temperatures above +100 °C. For temperatures below 0 °C, the fracture toughness of the rod end material must be taken into consideration.
98
SKF
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