21304-E1-XL-TVPBFAGSpherical Roller

Name: FAG 21304-E1-XL-TVPB Spherical Roller Bearing
Brand: FAG
SKU: 21304-E1-XL-TVPB

21304-E1-XL-TVPB is a FAG spherical roller bearing, bore 20 mm, O.D. 52 mm, width 15 mm. Dimensions, drawing, interchanges and price.

Polyamide cageX-life

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Bore d20mm

Outside dia. D52mm

Width B15mm

Dynamic Cr41kN

Static C0r33kN

Limiting speed16,000rpm

Weight0.16kg

Cr / C0r1.24

Mean dia. dm36mm

Original catalogue drawing - FAG Schaeffler HR 1, page 696

21304-E1-XL-TVPB FAG Spherical Roller 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 shoulder dia. D1 (mm)	43

Load ratings & speeds

Basic dynamic load rating Cr (lbs)	9217
Basic static load rating Cor (lbs)	7419
Basic dynamic load rating Cr (N)	41000
Basic static load rating C0r (N)	33000
Fatigue limit load Cur (N)	3700
Factor e	0.3
Factor Y0	2.2
Limiting speed nG (rpm)	16,000
Reference speed nB (rpm)	9,700

Weight

Weight (kg)	0.16

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 3,000 rpm
4	10,250	102	564
6	6,833	392	2,181
8	5,125	1,024	5,689
10	4,100	2,154	11,969
15	2,733	8,323	46,241

Basic rating life per ISO 281: L₁₀ = (C/P)^10/3 with C = 41,000 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.696 (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
6304-2RSR	FAG	Ball	20	52	15	16.9 kN	0.155
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

Nearby bore sizes

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
20204-TVP	FAG	Spherical Roller	20	47	14	20.4 kN	0.114
20304-TVP	FAG	Spherical Roller	20	52	15	27 kN	0.152
20205-K-TVP-C3	FAG	Spherical Roller	25	52	15	24.1 kN	0.132
20205-TVP	FAG	Spherical Roller	25	52	15	24.1 kN	0.134
20305-TVP	FAG	Spherical Roller	25	62	17	36 kN	0.243
21305-E1-XL-TVPB	FAG	Spherical Roller	25	62	17	52 kN	0.254
22205-E1-XL	FAG	Spherical Roller	25	52	18	48.5 kN	0.191
22205-E1-XL-K	FAG	Spherical Roller	25	52	18	48.5 kN	0.175

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