GB/T 276 6800 Series Thin Section Ball Bearings Specification
What GB/T 276 fixes, what it deliberately leaves to another document, its equivalents, and the dimensional table.
GB/T 276 is the Chinese national standard for the boundary dimensions of single row deep groove ball bearings, identical in the dimensions it fixes to ISO 15 for this bearing type. A 6204 supplied to GB/T 276 mounts in the same seat as one supplied to ISO 15 or DIN 625-1.
Standard
GB/T 276
Covers
Deep groove ball bearings, boundary dimensions
Does not fix
It fixes dimensions. Load ratings follow GB/T 6391 (equivalent to ISO 281), tolerances GB/T 307.1 (ISO 492) and internal clearance GB/T 4604.1 (ISO 5753-1).
Equivalents
ISO 15 and DIN 625-1 cover the same bearings with the same dimensions.
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.
GB/T 276 covers deep groove ball bearings, boundary dimensions. This page sets out what the standard fixes for 6800 series thin section ball bearings, what it deliberately leaves to other documents, its national equivalents, and the dimensional table supplied against it.
GB/T 276 — Scope
GB/T 276 is the Chinese national standard for the boundary dimensions of single row deep groove ball bearings, identical in the dimensions it fixes to ISO 15 for this bearing type. A 6204 supplied to GB/T 276 mounts in the same seat as one supplied to ISO 15 or DIN 625-1.
What GB/T 276 Does Not Fix
It fixes dimensions. Load ratings follow GB/T 6391 (equivalent to ISO 281), tolerances GB/T 307.1 (ISO 492) and internal clearance GB/T 4604.1 (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 GB/T 276
Designation
Bore 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)
6800
10
19
5
0.3
1.74
0.865
22000
0.0053
6801
12
21
5
0.3
1.92
1.04
20000
0.0060
6802
15
24
5
0.3
2.08
1.27
17000
0.0071
6803
17
26
5
0.3
2.21
1.46
15000
0.0077
6804
20
32
7
0.3
4.03
2.60
13000
0.019
6805
25
37
7
0.3
4.36
3.10
11000
0.022
6806
30
42
7
0.3
4.49
3.45
9500
0.026
6807
35
47
7
0.3
4.62
3.75
8500
0.029
6808
40
52
7
0.3
4.94
4.30
7500
0.033
6809
45
58
7
0.3
6.63
6.10
6700
0.038
6810
50
65
7
0.3
6.76
6.55
6300
0.049
6811
55
72
9
0.3
9.56
9.50
5600
0.075
6812
60
78
10
0.3
11.9
11.4
5300
0.096
6813
65
85
10
0.6
12.4
12.7
5000
0.110
6814
70
90
10
0.6
12.7
13.7
4500
0.120
6815
75
95
10
0.6
13.0
14.6
4300
0.125
6816
80
100
10
0.6
13.3
15.6
4000
0.135
6817
85
110
13
1
19.5
22.4
3800
0.250
6818
90
115
13
1
19.9
23.6
3600
0.265
6819
95
120
13
1
20.3
24.5
3400
0.275
6820
100
125
13
1
20.8
26.0
3200
0.290
National Equivalents
ISO 15 and DIN 625-1 cover the same bearings with the same dimensions.
This product is supplied against ISO 15 / DIN 625-1 / GB/T 276, which names the documents it is made to.
Catalog Products Governed by GB/T 276
GB/T 276 governs more than this one series. In this catalog it applies to:
Other ways to specify the 6800 Series Thin Section Ball Bearings
The same part is also governed by ISO 15 and DIN 625, 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
Where these dimensions are actually made
Ring forging, heat treatment, raceway grinding and superfinishing all happen under one roof, so a bore tolerance and a clearance group are set by processes we control and can evidence, not by whichever supplier had stock.
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 / DIN 625-1 / GB/T 276)
Designation
Bore 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)
6800
10
19
5
0.3
1.74
0.865
22000
0.0053
6801
12
21
5
0.3
1.92
1.04
20000
0.0060
6802
15
24
5
0.3
2.08
1.27
17000
0.0071
6803
17
26
5
0.3
2.21
1.46
15000
0.0077
6804
20
32
7
0.3
4.03
2.60
13000
0.019
6805
25
37
7
0.3
4.36
3.10
11000
0.022
6806
30
42
7
0.3
4.49
3.45
9500
0.026
6807
35
47
7
0.3
4.62
3.75
8500
0.029
6808
40
52
7
0.3
4.94
4.30
7500
0.033
6809
45
58
7
0.3
6.63
6.10
6700
0.038
6810
50
65
7
0.3
6.76
6.55
6300
0.049
6811
55
72
9
0.3
9.56
9.50
5600
0.075
6812
60
78
10
0.3
11.9
11.4
5300
0.096
6813
65
85
10
0.6
12.4
12.7
5000
0.110
6814
70
90
10
0.6
12.7
13.7
4500
0.120
6815
75
95
10
0.6
13.0
14.6
4300
0.125
6816
80
100
10
0.6
13.3
15.6
4000
0.135
6817
85
110
13
1
19.5
22.4
3800
0.250
6818
90
115
13
1
19.9
23.6
3600
0.265
6819
95
120
13
1
20.3
24.5
3400
0.275
6820
100
125
13
1
20.8
26.0
3200
0.290
Video: GB/T 276 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
Does GB/T 276 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 GB/T 276 fix the load rating?
No. GB/T 276 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 GB/T 276 does this table follow?
The table reproduces the dimensions we supply 6800 series thin section ball 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.
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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