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3304 bearing dimensions & suffix variants

Look up recorded dimensions for designations beginning with 3304. The table retains complete manufacturer designations so special suffixes and different dimensional variants remain visible.

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Find by measured dimensions

Enter bore d, outside diameter D and width B. Use decimals or inch fractions such as 1/2 or 1 1/4.

Exact model evidence

3304 dimensions and recorded technical data

The recorded 3304 base designation measures 20×52×22.2 mm (inside diameter d × outside diameter D × width B). This answer uses unsuffixed records from KOYO. It does not assign the same dimensions or operating ratings to every suffix.

The numeric series boundary is preserved: a longer number is not included merely because its first digits match. 32 recorded variants are listed. A dash means the value is missing, not zero.

Brand / full designation	Named dimensions (mm / in)	Dynamic C (kN)	Static C0 (kN)	Reference speed (rpm)	Limiting speed (rpm)	Mass (kg / g)
KOYO3304Angular contact ball bearing	Bore diameter (d) 20 mm 0.787402 in Outside diameter (D) 52 mm 2.047244 in Width (B) 22.2 mm 0.874016 in	26 kN	18.4 kN	—	8200 rpmLimiting Speeds(Grease Lub.): 8200 min-1Limiting Speeds(Oil Lub.): 11000 min-1	0.23 kg230 g
SKF3304 ADouble row angular contact ball bearing	Bore diameter (d) 20 mm 0.787402 in Outside diameter (D) 52 mm 2.047244 in Width (B) 22.2 mm 0.874016 in	24.5 kN	15.6 kN	13000 rpm	13000 rpm	0.221 kg221 g
SKF3304 A-2RS1Double row angular contact ball bearing with seals or shields	Bore diameter (d) 20 mm 0.787402 in Outside diameter (D) 52 mm 2.047244 in Width (B) 22.2 mm 0.874016 in	24.5 kN	15.6 kN	—	9000 rpm	0.224 kg224 g
SKF3304 A-2RS1/MT33Double row angular contact ball bearing with seals or shields	Recorded bore (d) 20 mm 0.787402 in Recorded outside dimension (D) 52 mm 2.047244 in Catalogue width (symbol unverified) 22.2 mm 0.874016 in	24.5 kN	15.6 kN	—	9000 rpm	0.224 kg224 g
SKF3304 A-2RS1TN9/C3MT33Double row angular contact ball bearing with seals or shields	Recorded bore (d) 20 mm 0.787402 in Recorded outside dimension (D) 52 mm 2.047244 in Catalogue width (symbol unverified) 22.2 mm 0.874016 in	24.5 kN	15.6 kN	—	9000 rpm	0.221 kg221 g
SKF3304 A-2RS1TN9/MT33Double row angular contact ball bearing with seals or shields	Bore diameter (d) 20 mm 0.787402 in Outside diameter (D) 52 mm 2.047244 in Width (B) 22.2 mm 0.874016 in	24.5 kN	15.6 kN	—	9000 rpm	0.221 kg221 g
SKF3304 A-2ZDouble row angular contact ball bearing with seals or shields	Bore diameter (d) 20 mm 0.787402 in Outside diameter (D) 52 mm 2.047244 in Width (B) 22.2 mm 0.874016 in	24.5 kN	15.6 kN	13000 rpm	13000 rpm	0.226 kg226 g
SKF3304 A-2Z/C3Double row angular contact ball bearing with seals or shields	Bore diameter (d) 20 mm 0.787402 in Outside diameter (D) 52 mm 2.047244 in Width (B) 22.2 mm 0.874016 in	24.5 kN	15.6 kN	13000 rpm	13000 rpm	0.224 kg224 g
SKF3304 A-2Z/C3MT33Double row angular contact ball bearing with seals or shields	Recorded bore (d) 20 mm 0.787402 in Recorded outside dimension (D) 52 mm 2.047244 in Catalogue width (symbol unverified) 22.2 mm 0.874016 in	24.5 kN	15.6 kN	13000 rpm	13000 rpm	0.226 kg226 g
SKF3304 A-2ZTN9/C3VT113Double row angular contact ball bearing with seals or shields	Recorded bore (d) 20 mm 0.787402 in Recorded outside dimension (D) 52 mm 2.047244 in Catalogue width (symbol unverified) 22.2 mm 0.874016 in	24.5 kN	15.6 kN	13000 rpm	13000 rpm	0.215 kg215 g
SKF3304 A-2ZTN9/MT33Double row angular contact ball bearing with seals or shields	Bore diameter (d) 20 mm 0.787402 in Outside diameter (D) 52 mm 2.047244 in Width (B) 22.2 mm 0.874016 in	24.5 kN	15.6 kN	13000 rpm	13000 rpm	0.215 kg215 g
SKF3304 A/C3Double row angular contact ball bearing	Recorded bore (d) 20 mm 0.787402 in Recorded outside dimension (D) 52 mm 2.047244 in Catalogue width (symbol unverified) 22.2 mm 0.874016 in	24.5 kN	15.6 kN	13000 rpm	13000 rpm	0.221 kg221 g
SKF3304 ATN9Double row angular contact ball bearing	Bore diameter (d) 20 mm 0.787402 in Outside diameter (D) 52 mm 2.047244 in Width (B) 22.2 mm 0.874016 in	24.5 kN	15.6 kN	13000 rpm	13000 rpm	0.211 kg211 g
SKF3304 ATN9/C3Double row angular contact ball bearing	Recorded bore (d) 20 mm 0.787402 in Recorded outside dimension (D) 52 mm 2.047244 in Catalogue width (symbol unverified) 22.2 mm 0.874016 in	24.5 kN	15.6 kN	13000 rpm	13000 rpm	0.211 kg211 g
FAG3304-BD-XLAngular contact ball bearing	Bore diameter (d) 20 mm 0.787402 in Outside diameter (D) 52 mm 2.047244 in Width (B) 22.2 mm 0.874016 in	24.6 kN	15.9 kN	10400 rpm	14700 rpm	0.211 kg211 g
FAG3304-BD-XL-2HRSAngular contact ball bearing	Bore diameter (d) 20 mm 0.787402 in Outside diameter (D) 52 mm 2.047244 in Width (B) 22.2 mm 0.874016 in	24.6 kN	15.9 kN	—	11000 rpm	0.218 kg218 g
FAG3304-BD-XL-2HRS-C3Angular contact ball bearing	Bore diameter (d) 20 mm 0.787402 in Outside diameter (D) 52 mm 2.047244 in Width (B) 22.2 mm 0.874016 in	24.6 kN	15.9 kN	—	11000 rpm	0.218 kg218 g
FAG3304-BD-XL-2HRS-TVHAngular contact ball bearing	Bore diameter (d) 20 mm 0.787402 in Outside diameter (D) 52 mm 2.047244 in Width (B) 22.2 mm 0.874016 in	24.6 kN	15.9 kN	—	11000 rpm	0.21 kg210 g
FAG3304-BD-XL-2HRS-TVH-C3Angular contact ball bearing	Bore diameter (d) 20 mm 0.787402 in Outside diameter (D) 52 mm 2.047244 in Width (B) 22.2 mm 0.874016 in	24.6 kN	15.9 kN	—	11000 rpm	0.21 kg210 g
FAG3304-BD-XL-2HRS-TVH-L091-C3Angular contact ball bearing	Bore diameter (d) 20 mm 0.787402 in Outside diameter (D) 52 mm 2.047244 in Width (B) 22.2 mm 0.874016 in	24.6 kN	15.9 kN	—	11000 rpm	0.217 kg217 g
FAG3304-BD-XL-2HRS-TVH-L310-C3Angular contact ball bearing	Bore diameter (d) 20 mm 0.787402 in Outside diameter (D) 52 mm 2.047244 in Width (B) 22.2 mm 0.874016 in	24.6 kN	15.9 kN	—	11000 rpm	0.215 kg215 g
FAG3304-BD-XL-2HRS-TVH-L405Angular contact ball bearing	Bore diameter (d) 20 mm 0.787402 in Outside diameter (D) 52 mm 2.047244 in Width (B) 22.2 mm 0.874016 in	24.6 kN	15.9 kN	—	11000 rpm	0.216 kg216 g
FAG3304-BD-XL-2HRS-TVH-L405-C3Angular contact ball bearing	Bore diameter (d) 20 mm 0.787402 in Outside diameter (D) 52 mm 2.047244 in Width (B) 22.2 mm 0.874016 in	24.6 kN	15.9 kN	—	11000 rpm	0.216 kg216 g
FAG3304-BD-XL-2ZAngular contact ball bearing	Bore diameter (d) 20 mm 0.787402 in Outside diameter (D) 52 mm 2.047244 in Width (B) 22.2 mm 0.874016 in	24.6 kN	15.9 kN	10400 rpm	11000 rpm	0.217 kg217 g
FAG3304-BD-XL-2Z-C3Angular contact ball bearing	Bore diameter (d) 20 mm 0.787402 in Outside diameter (D) 52 mm 2.047244 in Width (B) 22.2 mm 0.874016 in	24.6 kN	15.9 kN	10400 rpm	11000 rpm	0.217 kg217 g
FAG3304-BD-XL-2Z-TVHAngular contact ball bearing	Bore diameter (d) 20 mm 0.787402 in Outside diameter (D) 52 mm 2.047244 in Width (B) 22.2 mm 0.874016 in	24.6 kN	15.9 kN	10400 rpm	11000 rpm	0.214 kg214 g
FAG3304-BD-XL-2Z-TVH-C3Angular contact ball bearing	Bore diameter (d) 20 mm 0.787402 in Outside diameter (D) 52 mm 2.047244 in Width (B) 22.2 mm 0.874016 in	24.6 kN	15.9 kN	10400 rpm	11000 rpm	0.214 kg214 g
FAG3304-BD-XL-C3Angular contact ball bearing	Bore diameter (d) 20 mm 0.787402 in Outside diameter (D) 52 mm 2.047244 in Width (B) 22.2 mm 0.874016 in	24.6 kN	15.9 kN	10400 rpm	14700 rpm	0.211 kg211 g
FAG3304-BD-XL-TVHAngular contact ball bearing	Bore diameter (d) 20 mm 0.787402 in Outside diameter (D) 52 mm 2.047244 in Width (B) 22.2 mm 0.874016 in	24.6 kN	15.9 kN	10400 rpm	14700 rpm	0.206 kg206 g
FAG3304-BD-XL-TVH-C3Angular contact ball bearing	Bore diameter (d) 20 mm 0.787402 in Outside diameter (D) 52 mm 2.047244 in Width (B) 22.2 mm 0.874016 in	24.6 kN	15.9 kN	10400 rpm	14700 rpm	0.206 kg206 g
FAG3304-BD-XL-TVH-L285Angular contact ball bearing	Bore diameter (d) 20 mm 0.787402 in Outside diameter (D) 52 mm 2.047244 in Width (B) 22.2 mm 0.874016 in	24.6 kN	15.9 kN	10400 rpm	14700 rpm	0.209 kg209 g
FAG3304-BD-XL-TVH-L285-C3Angular contact ball bearing	Bore diameter (d) 20 mm 0.787402 in Outside diameter (D) 52 mm 2.047244 in Width (B) 22.2 mm 0.874016 in	24.6 kN	15.9 kN	10400 rpm	14700 rpm	0.209 kg209 g

Compare recorded seals, clearance, precision and materials

Manufacturer wording is retained. A missing property is not inferred from another brand or a similar suffix.

Brand / designation	Closure	Original precision	Clearance	Cage	Material	Lubricant
KOYO 3304	Open	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded
SKF 3304 A	Without	Not recorded	Not recorded	Sheet metal	Bearing steel	None
SKF 3304 A-2RS1	Seal on both sides	Not recorded	Not recorded	Sheet metal	Bearing steel	Grease
SKF 3304 A-2RS1/MT33	Seal on both sides	Not recorded	Not recorded	Sheet metal	Bearing steel	Grease
SKF 3304 A-2RS1TN9/C3MT33	Seal on both sides	Not recorded	Not recorded	Non-metallic	Bearing steel	Grease
SKF 3304 A-2RS1TN9/MT33	Seal on both sides	Not recorded	Not recorded	Non-metallic	Bearing steel	Grease
SKF 3304 A-2Z	Shield on both sides	Not recorded	Not recorded	Sheet metal	Bearing steel	Grease
SKF 3304 A-2Z/C3	Shield on both sides	Not recorded	Not recorded	Sheet metal	Bearing steel	Grease
SKF 3304 A-2Z/C3MT33	Shield on both sides	Not recorded	Not recorded	Sheet metal	Bearing steel	Grease
SKF 3304 A-2ZTN9/C3VT113	Shield on both sides	Not recorded	Not recorded	Non-metallic	Bearing steel	Grease
SKF 3304 A-2ZTN9/MT33	Shield on both sides	Not recorded	Not recorded	Non-metallic	Bearing steel	Grease
SKF 3304 A/C3	Without	Not recorded	Not recorded	Sheet metal	Bearing steel	None
SKF 3304 ATN9	Without	Not recorded	Not recorded	Non-metallic	Bearing steel	None
SKF 3304 ATN9/C3	Without	Not recorded	Not recorded	Non-metallic	Bearing steel	None
FAG 3304-BD-XL	Without — Not sealed	P6 — Class 6 (ISO 492:2023)	Not recorded	JH — Steel sheet metal	Not recorded	Without — Bearing not greased
FAG 3304-BD-XL-2HRS	2HRS — Contact seal on both sides	P6 — Class 6 (ISO 492:2023)	Not recorded	JH — Steel sheet metal	Not recorded	GA13 — Ball bearing and insert bearing grease
FAG 3304-BD-XL-2HRS-C3	2HRS — Contact seal on both sides	P6 — Class 6 (ISO 492:2023)	Not recorded	JH — Steel sheet metal	Not recorded	GA13 — Ball bearing and insert bearing grease
FAG 3304-BD-XL-2HRS-TVH	2HRS — Contact seal on both sides	P6 — Class 6 (ISO 492:2023)	Not recorded	TVH — Solid cage made of glass-fiber reinforced polyamide PA66	Not recorded	GA13 — Ball bearing and insert bearing grease
FAG 3304-BD-XL-2HRS-TVH-C3	2HRS — Contact seal on both sides	P6 — Class 6 (ISO 492:2023)	Not recorded	TVH — Solid cage made of glass-fiber reinforced polyamide PA66	Not recorded	GA13 — Ball bearing and insert bearing grease
FAG 3304-BD-XL-2HRS-TVH-L091-C3	2HRS — Contact seal on both sides	P6 — Class 6 (ISO 492:2023)	Not recorded	TVH — Solid cage made of glass-fiber reinforced polyamide PA66	Not recorded	L091 — Grease (L091/customer specific)
FAG 3304-BD-XL-2HRS-TVH-L310-C3	2HRS — Contact seal on both sides	P6 — Class 6 (ISO 492:2023)	Not recorded	TVH — Solid cage made of glass-fiber reinforced polyamide PA66	Not recorded	L310 — Grease (L310/customer specific)
FAG 3304-BD-XL-2HRS-TVH-L405	2HRS — Contact seal on both sides	P6 — Class 6 (ISO 492:2023)	Not recorded	TVH — Solid cage made of glass-fiber reinforced polyamide PA66	Not recorded	L405 — Grease (L405/customer specific)
FAG 3304-BD-XL-2HRS-TVH-L405-C3	2HRS — Contact seal on both sides	P6 — Class 6 (ISO 492:2023)	Not recorded	TVH — Solid cage made of glass-fiber reinforced polyamide PA66	Not recorded	L405 — Grease (L405/customer specific)
FAG 3304-BD-XL-2Z	2Z — Non-contact shield on both sides	P6 — Class 6 (ISO 492:2023)	Not recorded	JH — Steel sheet metal	Not recorded	GA13 — Ball bearing and insert bearing grease
FAG 3304-BD-XL-2Z-C3	2Z — Non-contact shield on both sides	P6 — Class 6 (ISO 492:2023)	Not recorded	JH — Steel sheet metal	Not recorded	GA13 — Ball bearing and insert bearing grease
FAG 3304-BD-XL-2Z-TVH	2Z — Non-contact shield on both sides	P6 — Class 6 (ISO 492:2023)	Not recorded	TVH — Solid cage made of glass-fiber reinforced polyamide PA66	Not recorded	GA13 — Ball bearing and insert bearing grease
FAG 3304-BD-XL-2Z-TVH-C3	2Z — Non-contact shield on both sides	P6 — Class 6 (ISO 492:2023)	Not recorded	TVH — Solid cage made of glass-fiber reinforced polyamide PA66	Not recorded	GA13 — Ball bearing and insert bearing grease
FAG 3304-BD-XL-C3	Without — Not sealed	P6 — Class 6 (ISO 492:2023)	Not recorded	JH — Steel sheet metal	Not recorded	Without — Bearing not greased
FAG 3304-BD-XL-TVH	Without — Not sealed	P6 — Class 6 (ISO 492:2023)	Not recorded	TVH — Solid cage made of glass-fiber reinforced polyamide PA66	Not recorded	Without — Bearing not greased
FAG 3304-BD-XL-TVH-C3	Without — Not sealed	P6 — Class 6 (ISO 492:2023)	Not recorded	TVH — Solid cage made of glass-fiber reinforced polyamide PA66	Not recorded	Without — Bearing not greased
FAG 3304-BD-XL-TVH-L285	Without — Not sealed	P6 — Class 6 (ISO 492:2023)	Not recorded	TVH — Solid cage made of glass-fiber reinforced polyamide PA66	Not recorded	L285 — Grease (L285/customer specific)
FAG 3304-BD-XL-TVH-L285-C3	Without — Not sealed	P6 — Class 6 (ISO 492:2023)	Not recorded	TVH — Solid cage made of glass-fiber reinforced polyamide PA66	Not recorded	L285 — Grease (L285/customer specific)

How to compare these values

Use the displayed dimension names and original symbols. Housing length L, height H2 and flange width are not bearing outside diameter D. A catalogue width with an unverified symbol must not be assumed to be inner-ring width B or assembly width T. Open the product record for mounting dimensions and geometry.
Inch values are calculated from the recorded millimetres using 25.4 mm per inch, rounded to six decimal places. They do not change a metric bearing into an inch-series bearing. Gram values are converted from the recorded mass in kilograms.
C and C0 describe different rating conditions. They are not a single safe working-load limit and cannot replace an application load calculation.
Reference and limiting speeds are separate catalogue values. The source grease/oil context is shown where recorded. Lubricant, seals, loads, fit, clearance and cooling affect the usable operating speed.
A common base number does not prove equivalent seals, clearance, precision, material or interchangeability. Open the full designation for these fields.

Check load calculations →Estimate rating life →Decode the complete marking →Check replacement evidence →

Related prefix matches — other model numbers may appear

These discovery results can contain a longer number or a different component. They are not specifications for the requested exact model. Open the complete product to inspect its original geometry.

KOYO

3304

Angular contact ball bearing

View full technical record →SKF