ISO 3548-1:2014
Plain bearings — Thin-walled half bearings with or without flange — Part 1: Tolerances, design features and methods of test
ISO 3548-1:2014 specifies tolerances, design features, and test methods for thin-walled half bearings with integral flange up to an outside diameter of Do = 250 mm and without flange up to an outside diameter of Do = 500 mm. Due to the variety of design, it is, however, not possible to standardize the dimensions of the half bearings. Half bearings according to ISO 3548-1:2014 are predominantly used in reciprocating machinery and consist of a steel backing and one or more bearing metal layers on the inside.
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Section sec_1
Section sec_2
Section sec_3
Table tab_a
Figure fig_1
Figure fig_2
Table tab_1
Section sec_4
Section sec_4.1
Section sec_4.2
Figure fig_3
Table tab_b
Figure fig_4
Section sec_4.3
Section sec_4.4
Table tab_2
Section sec_5
Section sec_5.1
Table tab_d
Figure fig_5
Table tab_e
Figure fig_6
Table tab_f
Figure fig_7
Section sec_5.2
Figure fig_8
Figure fig_9
Figure fig_10
Section sec_5.3
Figure fig_11
Table tab_g
Figure fig_12
Table tab_3
Section sec_5.4
Table tab_h
Figure fig_13
Section sec_5.5
Figure fig_14
Table tab_i
Figure fig_15
Figure fig_16
Figure fig_17
Table tab_4
Section sec_6
Section sec_6.1
Section sec_6.2
Table tab_j
Figure fig_18
Section sec_6.3
Table tab_k
Figure fig_19
Section sec_7
Section sec_7.1
Table tab_l
Figure fig_20
Section sec_7.2
Table tab_m
Figure fig_21
Section sec_8
Figure fig_22
Section sec_8.1
Section sec_8.2
Section sec_8.3
Annex sec_A
Reference ref_1
Reference ref_2
Reference ref_3
Reference ref_4
Reference ref_5
Foreword
1 Scope
2 Normative references
3 Symbols
4 Dimensions and tolerances
4.1 Housing diameter, half bearing outside diameter and crush height
4.2 Half bearing wall thickness and bearing bore
4.3 Width of half bearing, distance between flanges, outside diameter of flange and flange thickness
4.4 Free spread
5 Design features
5.1 Locating lip and recess
5.2 Reliefs and chamfers
5.3 Transition between radial part and flange
5.4 Assembled flange scalloped toes
5.5 Oil grooves and holes
6 Test data for determining the peripheral length
6.1 Calculation of test force F
6.2 Checking method A
6.3 Checking method B
7 Test data for determining axial width, B2, of flange bearings
7.1 Go between two parallel plates
7.2 Axial width B2 checked under force
8 Function and characteristics of assembled flange bearings
8.1 Characteristics
8.2 Classification
8.3 Checklist of items for ensuring the function of assembled flange bearings
Annex A (normative) Example of calculation
Bibliography
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Section sec_1
Section sec_2
Section sec_3
Table tab_a
Figure fig_1
Figure fig_2
Table tab_1
Section sec_4
Section sec_4.1
Section sec_4.2
Figure fig_3
Table tab_b
Figure fig_4
Section sec_4.3
Section sec_4.4
Table tab_2
Section sec_5
Section sec_5.1
Table tab_d
Figure fig_5
Table tab_e
Figure fig_6
Table tab_f
Figure fig_7
Section sec_5.2
Figure fig_8
Figure fig_9
Figure fig_10
Section sec_5.3
Figure fig_11
Table tab_g
Figure fig_12
Table tab_3
Section sec_5.4
Table tab_h
Figure fig_13
Section sec_5.5
Figure fig_14
Table tab_i
Figure fig_15
Figure fig_16
Figure fig_17
Table tab_4
Section sec_6
Section sec_6.1
Section sec_6.2
Table tab_j
Figure fig_18
Section sec_6.3
Table tab_k
Figure fig_19
Section sec_7
Section sec_7.1
Table tab_l
Figure fig_20
Section sec_7.2
Table tab_m
Figure fig_21
Section sec_8
Figure fig_22
Section sec_8.1
Section sec_8.2
Section sec_8.3
Annex sec_A
Reference ref_1
Reference ref_2
Reference ref_3
Reference ref_4
Reference ref_5
Foreword
1 Scope
2 Normative references
3 Symbols
4 Dimensions and tolerances
4.1 Housing diameter, half bearing outside diameter and crush height
4.2 Half bearing wall thickness and bearing bore
4.3 Width of half bearing, distance between flanges, outside diameter of flange and flange thickness
4.4 Free spread
5 Design features
5.1 Locating lip and recess
5.2 Reliefs and chamfers
5.3 Transition between radial part and flange
5.4 Assembled flange scalloped toes
5.5 Oil grooves and holes
6 Test data for determining the peripheral length
6.1 Calculation of test force F
6.2 Checking method A
6.3 Checking method B
7 Test data for determining axial width, B2, of flange bearings
7.1 Go between two parallel plates
7.2 Axial width B2 checked under force
8 Function and characteristics of assembled flange bearings
8.1 Characteristics
8.2 Classification
8.3 Checklist of items for ensuring the function of assembled flange bearings
Annex A (normative) Example of calculation
Bibliography