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Ball Bearings · ISO 15 / DIN 625-1 / GB/T 276

ISO 15 6800 Series Thin Section Ball Bearings Specification

What ISO 15 fixes, what it deliberately leaves to another document, its equivalents, and the dimensional table.

ISO 15 fixes the boundary dimensions of metric radial rolling bearings: the bore d, the outside diameter D, the width B and the limiting corner radius r, arranged in diameter and width series so that a bore of 20 mm exists in several standard envelopes (6004, 6204, 6304, 6404). It is the reason a 6204 from any manufacturer drops into the same housing.

Standard
ISO 15
Covers
Boundary dimensions of radial rolling bearings
Does not fix
It says nothing about how much load the bearing carries, how fast it may run, how accurately it is made or how much clearance it has. Load ratings are calculated to ISO 281, running accuracy is ISO 492 and radial internal clearance is ISO 5753-1.
Equivalents
DIN 616 restates the dimension plan nationally, with the individual bearing types in DIN 625, DIN 628, DIN 630, DIN 635 and DIN 5412; GB/T 273.3 carries the same plan in China.
Product
6800 Series Thin Section Ball Bearings
Governing standards
ISO 15 / DIN 625-1 / GB/T 276

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.

Industrial fan bearing — 6800 Series Thin Section Ball Bearings in service

6800 Series Thin Section Ball Bearings manufactured to ISO 15 are tabulated below. The standard covers boundary dimensions of radial rolling 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 15 — Scope

ISO 15 fixes the boundary dimensions of metric radial rolling bearings: the bore d, the outside diameter D, the width B and the limiting corner radius r, arranged in diameter and width series so that a bore of 20 mm exists in several standard envelopes (6004, 6204, 6304, 6404). It is the reason a 6204 from any manufacturer drops into the same housing.

What ISO 15 Does Not Fix

It says nothing about how much load the bearing carries, how fast it may run, how accurately it is made or how much clearance it has. Load ratings are calculated to ISO 281, running accuracy is ISO 492 and radial internal clearance is ISO 5753-1.

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 15

DesignationBore d (mm)Outer diameter D (mm)Width B (mm)Chamfer r min (mm)Basic dynamic load rating Cr (kN)Basic static load rating C0r (kN)Limiting speed grease (rpm)Mass (kg)
6800101950.31.740.865220000.0053
6801122150.31.921.04200000.0060
6802152450.32.081.27170000.0071
6803172650.32.211.46150000.0077
6804203270.34.032.60130000.019
6805253770.34.363.10110000.022
6806304270.34.493.4595000.026
6807354770.34.623.7585000.029
6808405270.34.944.3075000.033
6809455870.36.636.1067000.038
6810506570.36.766.5563000.049
6811557290.39.569.5056000.075
68126078100.311.911.453000.096
68136585100.612.412.750000.110
68147090100.612.713.745000.120
68157595100.613.014.643000.125
681680100100.613.315.640000.135
68178511013119.522.438000.250
68189011513119.923.636000.265
68199512013120.324.534000.275
682010012513120.826.032000.290

Catalog Products Governed by ISO 15

ISO 15 governs more than this one series. In this catalog it applies to:

When to Cite ISO 15

ISO 15 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.

Technical Drawing

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.

Bearing production line, wide view
Ring inspection station
Bearing assembly and clearance setting
Finished bearings staged for packing

Request a Quote

The form below follows the current technical drawing configuration. Change the drawing values above and the request details update automatically.

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Specification
Business Information

Dimensions & Specifications (ISO 15 / DIN 625-1 / GB/T 276)

DesignationBore d (mm)Outer diameter D (mm)Width B (mm)Chamfer r min (mm)Basic dynamic load rating Cr (kN)Basic static load rating C0r (kN)Limiting speed grease (rpm)Mass (kg)
6800101950.31.740.865220000.0053
6801122150.31.921.04200000.0060
6802152450.32.081.27170000.0071
6803172650.32.211.46150000.0077
6804203270.34.032.60130000.019
6805253770.34.363.10110000.022
6806304270.34.493.4595000.026
6807354770.34.623.7585000.029
6808405270.34.944.3075000.033
6809455870.36.636.1067000.038
6810506570.36.766.5563000.049
6811557290.39.569.5056000.075
68126078100.311.911.453000.096
68136585100.612.412.750000.110
68147090100.612.713.745000.120
68157595100.613.014.643000.125
681680100100.613.315.640000.135
68178511013119.522.438000.250
68189011513119.923.636000.265
68199512013120.324.534000.275
682010012513120.826.032000.290

Video: ISO 15 6800 Series Thin Section Ball 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

What does ISO 15 not cover?

It says nothing about how much load the bearing carries, how fast it may run, how accurately it is made or how much clearance it has. Load ratings are calculated to ISO 281, running accuracy is ISO 492 and radial internal clearance is ISO 5753-1.

What is the equivalent of ISO 15?

DIN 616 restates the dimension plan nationally, with the individual bearing types in DIN 625, DIN 628, DIN 630, DIN 635 and DIN 5412; GB/T 273.3 carries the same plan in China.

Does ISO 15 mean two bearings are interchangeable?

Dimensionally, yes — that is what a boundary dimension standard is for, and a bearing of the same designation from any maker mounts in the same shaft and housing seat. Functionally, not necessarily: the load rating, the internal design, the cage, the clearance group and the speed limit are decided by the manufacturer and by other standards, and two bearings with the same number are not required to match on any of them.

Does ISO 15 fix the load rating?

No. ISO 15 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.

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.