Spherical Roller Bearings · ISO 15 / GB/T 288 / DIN 635-2
ISO 5753-1 23100K Series Tapered Bore Spherical Roller Bearings Specification
What ISO 5753-1 fixes, what it deliberately leaves to another document, its equivalents, and the dimensional table.
ISO 5753-1 tabulates the radial internal clearance of unmounted radial bearings by bore range and clearance group — C2, CN (normal, and usually left out of the designation), C3, C4 and C5. The clearance is measured before mounting; the interference fits used on the shaft and in the housing, plus any temperature difference across the bearing, consume part of it in service.
Standard
ISO 5753-1
Covers
Radial internal clearance
Does not fix
It is not a tolerance class and it is not a fit table: how much of the listed clearance survives mounting depends on the shaft and housing fits chosen to ISO 286, which the standard does not prescribe.
Equivalents
GB/T 4604.1 is the Chinese equivalent; the values for tapered-bore and for non-ball types are given in the standard's own separate tables.
Product
23100K Series Tapered Bore Spherical Roller Bearings
Governing standards
ISO 15 / GB/T 288 / DIN 635-2
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.
23100K Series Tapered Bore Spherical Roller Bearings manufactured to ISO 5753-1 are tabulated below. The standard covers radial internal clearance — 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 5753-1 — Scope
ISO 5753-1 tabulates the radial internal clearance of unmounted radial bearings by bore range and clearance group — C2, CN (normal, and usually left out of the designation), C3, C4 and C5. The clearance is measured before mounting; the interference fits used on the shaft and in the housing, plus any temperature difference across the bearing, consume part of it in service.
What ISO 5753-1 Does Not Fix
It is not a tolerance class and it is not a fit table: how much of the listed clearance survives mounting depends on the shaft and housing fits chosen to ISO 286, which the standard does not prescribe.
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 5753-1
Designation
Bore d (mm)
Outer diameter D (mm)
Width B (mm)
Chamfer r min (mm)
Bore taper
Adapter sleeve
Permissible misalignment (deg)
23122K
110
180
56
2
1:12
H3122
1.5
23124K
120
200
62
2
1:12
H3124
1.5
23126K
130
210
64
2
1:12
H3126
1.5
23128K
140
225
68
2.1
1:12
H3128
1.5
23130K
150
250
80
2.1
1:12
H3130
1.5
23132K
160
270
86
2.1
1:12
H3132
1.5
23134K
170
280
88
2.1
1:12
H3134
1.5
23136K
180
300
96
3
1:12
H3136
1.5
23138K
190
320
104
3
1:12
H3138
1.5
23140K
200
340
112
3
1:12
H3140
1.5
23144K
220
370
120
4
1:12
H3144
1.5
Catalog Products Governed by ISO 5753-1
ISO 5753-1 governs more than this one series. In this catalog it applies to:
ISO 5753-1 is the international reference and the right one to cite on a new drawing or a purchase specification. Adding the national equivalents alongside it costs nothing and makes the requirement legible to a supplier working to DIN or to GB/T.
Other ways to specify the 23100K Series Tapered Bore Spherical Roller Bearings
The same part is also governed by ISO 15, and where two standards cover one dimension they agree — the numbers are the same, the document is not.
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
The numbers come off our own machines
Every ring is gauged for bore and outside diameter, every assembly for radial internal clearance to ISO 5753-1, and every finished bearing for vibration. That is why the values on this page are quotable rather than indicative.
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 15 / GB/T 288 / DIN 635-2)
Designation
Bore d (mm)
Outer diameter D (mm)
Width B (mm)
Chamfer r min (mm)
Bore taper
Adapter sleeve
Permissible misalignment (deg)
23122K
110
180
56
2
1:12
H3122
1.5
23124K
120
200
62
2
1:12
H3124
1.5
23126K
130
210
64
2
1:12
H3126
1.5
23128K
140
225
68
2.1
1:12
H3128
1.5
23130K
150
250
80
2.1
1:12
H3130
1.5
23132K
160
270
86
2.1
1:12
H3132
1.5
23134K
170
280
88
2.1
1:12
H3134
1.5
23136K
180
300
96
3
1:12
H3136
1.5
23138K
190
320
104
3
1:12
H3138
1.5
23140K
200
340
112
3
1:12
H3140
1.5
23144K
220
370
120
4
1:12
H3144
1.5
Video: ISO 5753-1 23100K Series Tapered Bore 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 5753-1 fix the load rating?
No. ISO 5753-1 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 5753-1 does this table follow?
The table reproduces the dimensions we supply 23100k series tapered bore 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 5753-1 specify?
ISO 5753-1 tabulates the radial internal clearance of unmounted radial bearings by bore range and clearance group — C2, CN (normal, and usually left out of the designation), C3, C4 and C5. The clearance is measured before mounting; the interference fits used on the shaft and in the housing, plus any temperature difference across the bearing, consume part of it in service.
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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