Bearing dimensions database

Bearing Size Chart

Compare published bearing models by bore or shaft size, outside diameter, width, series and bearing family. Different bearing structures use different dimension systems, so this chart keeps each family-specific schema visible.

How to Use This Bearing Size Chart

Start with the bearing family, then read its column headings before comparing metric bearing sizes. All dimensions below are in millimetres; a dash means that the recorded source does not provide that value.

Standard radial bearings: d = bore diameter, D = outside diameter and B = bearing width.
Tapered roller bearings: d and D describe the bore and outside diameter; T = total bearing width. B and C, when available, describe the inner-ring and outer-ring widths separately. Do not substitute T for B.
Insert bearings: use shaft diameter, spherical outside diameter and inner ring width from the insert-specific dimension schema.
Pillow block units: use shaft diameter, overall length, overall height, center height, bolt spacing and insert inner ring width from the housing-specific dimension schema.

Different bearing families do not use one universal d/D/B dimension schema.

Learn how bearing dimension symbols work →

Check more than matching dimensions

Matching dimensions alone do not confirm interchangeability.

Before selection, review bearing type, internal design, seals, clearance, precision, load and speed reference data, and application conditions. This bearing dimensions chart is an identification aid, not approval for a particular operating duty.

Review the Bearing Selection Guide →

Technical guides

Use the guides to connect bearing designations and family-specific dimension symbols with the operating conditions that require engineering review.

Bearing Selection Guide →

Bearing Number System Guide →

Bearing Dimensions Explained →

Bearing Seal Types Guide →

Bearing Tolerance Guide →

Bearing Cross Reference →

Reference-data notice

Values come from recorded manufacturer or engineering references and support identification and selection review. Seal, clearance, cage, precision, load, speed and exact supplied configuration must be confirmed before quotation.

Open the bearing specifications overview →

01 · Radial family

Standard Radial Bearing Dimensions

6000, 6200 and 6300 series records use the radial d/D/B schema. Variant enclosures are consolidated on the 6200 series page when their envelope is shared.

Model	Bearing Type	Series	Bore d	Outside Diameter D	Width B
6000	Single-row open deep groove ball bearing	6000	10 mm	26 mm	8 mm
6001	Single-row open deep groove ball bearing	6000	12 mm	28 mm	8 mm
6002	Single-row open deep groove ball bearing	6000	15 mm	32 mm	9 mm
6003	Single-row open deep groove ball bearing	6000	17 mm	35 mm	10 mm
6004	Single-row open deep groove ball bearing	6000	20 mm	42 mm	12 mm
6005	Single-row open deep groove ball bearing	6000	25 mm	47 mm	12 mm
6006	Single-row open deep groove ball bearing	6000	30 mm	55 mm	13 mm
6007	Single-row open deep groove ball bearing	6000	35 mm	62 mm	14 mm
6008	Single-row open deep groove ball bearing	6000	40 mm	68 mm	15 mm
6200	Single-row deep groove ball bearing	6200	10 mm	30 mm	9 mm
6201	Single-row deep groove ball bearing	6200	12 mm	32 mm	10 mm
6202	Single-row deep groove ball bearing	6200	15 mm	35 mm	11 mm
6203	Single-row deep groove ball bearing	6200	17 mm	40 mm	12 mm
6204	Single-row deep groove ball bearing	6200	20 mm	47 mm	14 mm
6205	Single-row deep groove ball bearing	6200	25 mm	52 mm	15 mm
6206	Single-row deep groove ball bearing	6200	30 mm	62 mm	16 mm
6207	Single-row deep groove ball bearing	6200	35 mm	72 mm	17 mm
6208	Single-row deep groove ball bearing	6200	40 mm	80 mm	18 mm
6209	Single-row deep groove ball bearing	6200	45 mm	85 mm	19 mm
6210	Single-row deep groove ball bearing	6200	50 mm	90 mm	20 mm
6300	Single-row open deep groove ball bearing	6300	10 mm	35 mm	11 mm
6301	Single-row open deep groove ball bearing	6300	12 mm	37 mm	12 mm
6302	Single-row open deep groove ball bearing	6300	15 mm	42 mm	13 mm
6303	Single-row open deep groove ball bearing	6300	17 mm	47 mm	14 mm
6304	Single-row open deep groove ball bearing	6300	20 mm	52 mm	15 mm
6305	Single-row open deep groove ball bearing	6300	25 mm	62 mm	17 mm
6306	Single-row open deep groove ball bearing	6300	30 mm	72 mm	19 mm
6307	Single-row open deep groove ball bearing	6300	35 mm	80 mm	21 mm
6308	Single-row open deep groove ball bearing	6300	40 mm	90 mm	23 mm

6000 Series Bearing Dimensions 6200 Series Bearing Dimensions 6300 Series Bearing Dimensions

02 · Spherical roller family

Spherical Roller Bearing Dimensions

These 222 E-design records use d/D/B boundary dimensions, while their internal design and suffix remain manufacturer-specific.

Model	Bearing Type	Series	Bore d	Outside Diameter D	Width B
22205 E	Double-row spherical roller bearing	22200	25 mm	52 mm	18 mm
22206 E	Double-row spherical roller bearing, E-design reference	22200	30 mm	62 mm	20 mm
22207 E	Double-row spherical roller bearing, E-design reference	22200	35 mm	72 mm	23 mm

03 · Tapered family

Tapered Roller Bearing Dimensions

T is total bearing width. B and C remain separate inner-ring and outer-ring widths; an unavailable value is shown as a dash rather than inferred.

Model	Series	Bore d	Outside Diameter D	Total Width T	Inner Ring Width B	Outer Ring Width C
30204	30200	20 mm	47 mm	15.25 mm	14 mm	12 mm
30205	30200	25 mm	52 mm	16.25 mm	—	—
30206	30200	30 mm	62 mm	17.25 mm	16 mm	14 mm
30207	30200	35 mm	72 mm	18.25 mm	17 mm	15 mm

04 · Insert family

Insert Bearing Dimensions

Insert bearings are described by shaft diameter, spherical outside diameter and inner ring width.

Model	Shaft Diameter	Spherical Outside Diameter	Inner Ring Width
UC204	20 mm	47 mm	31 mm
UC205	25 mm	52 mm	34.1 mm
UC206	30 mm	62 mm	38.1 mm

05 · Housing family

Pillow Block Bearing Unit Dimensions

Mounted units use housing and mounting dimensions. Fields are rendered only when present in the family schema.

Model	Shaft Diameter	Overall Length	Overall Height	Center Height	Bolt Spacing	Insert Inner Ring Width
UCP204	20 mm	127 mm	65 mm	33.3 mm	95 mm	31 mm
UCP205	25 mm	140 mm	71 mm	36.5 mm	105 mm	34.1 mm
UCP206	30 mm	165 mm	83 mm	42.5 mm	121 mm	38.1 mm

Engineering review

Need the exact bearing configuration?

Use a model page for the recorded reference source, then send suffix, clearance, load, speed, fit and quantity for quotation review.

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