6304-2RSRFAGBall

Name: FAG 6304-2RSR Ball Bearing
Brand: FAG
SKU: 6304-2RSR

6304-2RSR is a FAG ball bearing, bore 20 mm, O.D. 52 mm, width 15 mm, dynamic rating 16.9 kN. Dimensions, drawing, interchanges and price.

Sealed both sides

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Bore d20mm

Outside dia. D52mm

Width B15mm

Dynamic Cr16.9kN

Static C0r7.9kN

Limiting speed8,800rpm

Weight0.155kg

Cr / C0r2.14

Mean dia. dm36mm

Original catalogue drawing - FAG Schaeffler HR 1, page 242

6304-2RSR FAG Ball bearing catalogue drawing

Scanned from the manufacturer catalogue page listing this part number. All part numbers printed on that table share the same drawing.

Scale cross-section

Blue = inner / outer ring, yellow = rolling element. Drawn to scale from this part's own dimensions for selection reference only - not a manufacturing or assembly drawing.

Dimension table (mm / inch)

Symbol	Dimension	mm	inch
d	Bore diameter	20	0.7874
D	Outside diameter	52	2.0472
B	Inner-ring / bearing width	15	0.5906
r	Chamfer (min)	1.1	0.0433

Notes

Weights are given in kg. Load ratings are shown in both the original catalogue units and the converted value (1 N = 0.2248 lbf). Data is provided for selection reference only - confirm against the latest official catalogue before ordering.

Main dimensions

Bore d (mm)	20
Outside dia. D (mm)	52
Width B (mm)	15
Inner-ring OD d1 (mm)	30.3
Seal outside dia. D2 (mm)	44.4

Load ratings & speeds

Basic dynamic load rating Cr (lbs)	3799
Basic static load rating Cor (lbs)	1776
Basic dynamic load rating Cr (N)	16900
Basic static load rating C0r (N)	7900
Fatigue limit load Cur (N)	530
Factor f0	12.4
Limiting speed nG (rpm)	8,800

Weight

Weight (kg)	0.155

Mounting dimensions (fillets / shoulders)

Housing fillet r max (mm)	1.1
Shaft shoulder da (mm)	27
Housing shoulder Da (mm)	45
Housing fillet ra max (mm)	1

Bearing life (ISO 281 basic rating life)

C / P	Equivalent load P (N)	L₁₀ (10⁶ rev)	L_10h at 2,900 rpm
4	4,225	64	368
6	2,817	216	1,241
8	2,112	512	2,943
10	1,690	1,000	5,747
15	1,127	3,375	19,397

Basic rating life per ISO 281: L₁₀ = (C/P)³ with C = 16,900 N. Hours = L₁₀ x 10⁶ / (60n). Life-modification factors for lubrication, contamination and temperature (a_ISO) are not included.

Source & traceability

Brand	FAG
Source catalogue	FAG / Schaeffler Rolling Bearings HR 1
Catalogue page	p.242 (dimensions)

Load ratings in newtons, fatigue limit load Cur, limiting speed nG and reference speed nB.

Interchange - same dimensions, other brands

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
1304	NSK	Ball	20	52	15	2,810 lbs	0.172
6304	NSK	Ball	20	52	15	3,580 lbs	0.145
7304B	NSK	Ball	20	52	15	3,640 lbs	0.15
21304CDE4	NSK	Spherical Roller	20	52	15	29.3 kN	0.17
30304	NSK	Tapered Roller	20	52	15	31 kN	0.168
HR30304	NSK	Tapered Roller	20	52	15	43 kN	0.172
HR30304J	NSK	Tapered Roller	20	52	15	7,870 lbs	0.172
7304	NSK	Precision / Angular Contact	20	52	15	20.6 kN	0.146
30304	Timken	Tapered Roller	20	52	15	38.5 kN	2.66

Same dimensions, same brand

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
1304-TVH	FAG	Ball	20	52	15	12.7 kN	0.163
6304	FAG	Ball	20	52	15	16.9 kN	0.151
6304-2Z	FAG	Ball	20	52	15	16.9 kN	0.155
QJ304-MPA	FAG	Ball	20	52	15	30 kN	0.184
QJ304-XL-MPA	FAG	Ball	20	52	15	31 kN	0.184
S6304	FAG	Ball	20	52	15	16 kN	0.153
NJ304-E-TVP2	FAG	Cylindrical Roller	20	52	15	36.5 kN	0.156
NJ304-E-XL-TVP2	FAG	Cylindrical Roller	20	52	15	37.5 kN	0.156

Series variants (different suffix)

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
6304	FAG	Ball	20	52	15	16.9 kN	0.151
6304-2Z	FAG	Ball	20	52	15	16.9 kN	0.155

Nearby bore sizes

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
11204-TVH	FAG	Ball	20	47	14	10.1 kN	0.085
1204-K-TVH-C3	FAG	Ball	20	47	14	10.1 kN	0.116
1204-TVH	FAG	Ball	20	47	14	10.1 kN	0.118
1304-TVH	FAG	Ball	20	52	15	12.7 kN	0.163
16004	FAG	Ball	20	42	8	7.4 kN	0.048
2204-2RS-TVH	FAG	Ball	20	47	18	10.1 kN	0.151
2204-TVH	FAG	Ball	20	47	18	14.7 kN	0.134
2304-2RS-TVH	FAG	Ball	20	52	21	12.7 kN	0.23

Request a quotation for 6304-2RSR

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