ISO 104 29400 Series Thrust Spherical Roller Bearings Specification
What ISO 104 fixes, what it deliberately leaves to another document, its equivalents, and the dimensional table.
ISO 104 fixes the boundary dimensions of thrust bearings: the shaft washer bore d, the housing washer outside diameter D and the assembled height H — the dimension the shoulder spacing has to be machined to. Double-direction bearings add the second bore d2 for the centre washer.
Standard
ISO 104
Covers
Boundary dimensions of thrust bearings
Does not fix
It does not rate the bearing (ISO 281 for the dynamic rating, ISO 76 for the static one), and it says nothing about the minimum axial load a thrust bearing needs in order to keep its rolling elements running rather than sliding.
Equivalents
DIN 711 and DIN 715 cover single and double direction thrust ball bearings, DIN 722 and DIN 728 the roller types; GB/T 301 is the Chinese equivalent for thrust ball bearings.
Product
29400 Series Thrust Spherical Roller Bearings
Governing standards
ISO 104 / DIN 728 / GB/T 5859
Equivalence between the ISO, DIN and GB/T documents is dimensional: a bearing made to either mounts in the same seat. It is not an equivalence of load rating, tolerance class or internal clearance, each of which is fixed by a separate standard and declared separately.
29400 Series Thrust Spherical Roller Bearings manufactured to ISO 104 are tabulated below. The standard covers boundary dimensions of thrust bearings — and reading it as though it covered anything else is the most common mistake made with a bearing standard, so the boundary of its scope is set out first.
ISO 104 — Scope
ISO 104 fixes the boundary dimensions of thrust bearings: the shaft washer bore d, the housing washer outside diameter D and the assembled height H — the dimension the shoulder spacing has to be machined to. Double-direction bearings add the second bore d2 for the centre washer.
What ISO 104 Does Not Fix
It does not rate the bearing (ISO 281 for the dynamic rating, ISO 76 for the static one), and it says nothing about the minimum axial load a thrust bearing needs in order to keep its rolling elements running rather than sliding.
This division of labour is the thing to carry away from any bearing standard. A boundary dimension standard makes bearings interchangeable; it does not make them equivalent. Two bearings of the same designation from different makers mount in the same seat and are not required to have the same load rating, the same internal design, the same cage or the same speed limit.
Dimensions Supplied to ISO 104
Designation
Bore d (mm)
Outer diameter D (mm)
Height H (mm)
Chamfer r min (mm)
29413
65
140
45
3
29414
70
150
48
3
29415
75
160
51
3
29416
80
170
54
3
29417
85
180
58
3
29418
90
190
60
3
29420
100
210
67
4
29422
110
230
73
4
29424
120
250
78
4
29426
130
270
85
5
29428
140
280
85
5
29430
150
300
90
5
29432
160
320
95
5
29434
170
340
103
5
29436
180
360
109
5
National Equivalents
DIN 711 and DIN 715 cover single and double direction thrust ball bearings, DIN 722 and DIN 728 the roller types; GB/T 301 is the Chinese equivalent for thrust ball bearings.
This product is supplied against ISO 104 / DIN 728 / GB/T 5859, which names the documents it is made to.
Catalog Products Governed by ISO 104
ISO 104 governs more than this one series. In this catalog it applies to:
Customize the parameters below — every spec field is editable, and the drawing redraws to match the values you choose. Changing the designation snaps the other fields to that size's standard values; you can then override any individual value.
Sends the selected values to the quote form below.
Our facility
Held in production, not just on paper
The tolerances above are decided on the grinding and superfinishing lines in our own plant, and gauged on every ring rather than on a sample. A dimension is only worth quoting if it survives the process that produces it.
Request a Quote
The form below follows the current technical drawing configuration. Change the drawing values above and the request details update automatically.
Dimensions & Specifications (ISO 104 / DIN 728 / GB/T 5859)
Designation
Bore d (mm)
Outer diameter D (mm)
Height H (mm)
Chamfer r min (mm)
29413
65
140
45
3
29414
70
150
48
3
29415
75
160
51
3
29416
80
170
54
3
29417
85
180
58
3
29418
90
190
60
3
29420
100
210
67
4
29422
110
230
73
4
29424
120
250
78
4
29426
130
270
85
5
29428
140
280
85
5
29430
150
300
90
5
29432
160
320
95
5
29434
170
340
103
5
29436
180
360
109
5
Video: ISO 104 29400 Series Thrust Spherical Roller Bearings Specification
Third-party video, selected automatically for this topic. It is not produced by Bushing Bearings and is not a specification source — use the tables on this page for dimensional data.
Frequently Asked Questions
Does ISO 104 fix the load rating?
No. ISO 104 does not set load ratings. Basic dynamic load ratings are calculated to the method of ISO 281 and are declared by the manufacturer; the static rating follows ISO 76.
Which edition of ISO 104 does this table follow?
The table reproduces the dimensions we supply 29400 series thrust spherical roller bearings to. We do not publish an edition year against it, so where the edition is contractually significant, cite the edition you require on the enquiry and we will confirm it against the table before quoting.
Can I cite the GB/T number instead of the ISO one?
For the boundary dimensions, yes — the GB/T standards restate the ISO dimension plan and a part made to either mounts in the same seat. The safest drawing note gives both, because it stays legible if the supply moves between a Chinese, a European and an international manufacturer.
What does ISO 104 specify?
ISO 104 fixes the boundary dimensions of thrust bearings: the shaft washer bore d, the housing washer outside diameter D and the assembled height H — the dimension the shoulder spacing has to be machined to. Double-direction bearings add the second bore d2 for the centre washer.
How do I request a quotation?
Use the technical drawing on this page to pick the exact configuration, then submit it with the quote form. We respond within one business day.
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