32308-AFAGTapered Roller

Name: FAG 32308-A Tapered Roller Bearing
Brand: FAG
SKU: 32308-A

32308-A is a FAG tapered roller bearing, bore 40 mm, O.D. 90 mm, width 33 mm, dynamic rating 121 kN. Dimensions, drawing, interchanges and price.

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Bore d40mm

Outside dia. D90mm

Width B33mm

Dynamic Cr121kN

Static C0r148kN

Limiting speed8,000rpm

Weight1.06kg

Cr / C0r0.82

Mean dia. dm65mm

Original catalogue drawing - FAG Schaeffler HR 1, page 478

32308-A FAG Tapered 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	40	1.5748
D	Outside diameter	90	3.5433
B	Inner-ring / bearing width	33	1.2992
T	Overall assembly width	35.25	1.3878
C	Cup / outer-ring width	27	1.063

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)	40
Outside dia. D (mm)	90
Width B (mm)	33
Overall width T (mm)	35.25
Cup width C (mm)	27
Inner-ring OD d1 (mm)	63.3

Load ratings & speeds

Basic dynamic load rating Cr (lbs)	27202
Basic static load rating Cor (lbs)	33272
Basic dynamic load rating Cr (N)	121000
Basic static load rating C0r (N)	148000
Basic dynamic axial rating Ca (N)	4
Fatigue limit load Cur (N)	17900
Factor e	0.35
Factor Y	1.74
Factor Y0	0.96
Limiting speed nG (rpm)	8,000
Reference speed nB (rpm)	5,600
Effective load centre a (mm)	23

Weight

Weight (kg)	1.06

Mounting dimensions (fillets / shoulders)

Chamfer r2 min (mm)	2
Shaft shoulder da (mm)	50
Shaft shoulder db (mm)	49
Housing shoulder Da (mm)	81
Housing shoulder Db (mm)	82
Housing fillet ra max (mm)	2
Fillet rb max (mm)	1.5

Bearing life (ISO 281 basic rating life)

C / P	Equivalent load P (N)	L₁₀ (10⁶ rev)	L_10h at 2,600 rpm
4	30,250	102	651
6	20,167	392	2,516
8	15,125	1,024	6,564
10	12,100	2,154	13,810
15	8,067	8,323	53,356

Basic rating life per ISO 281: L₁₀ = (C/P)^10/3 with C = 121,000 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.478 (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
2308	NSK	Ball	40	90	33	10,100 lbs	0.998
2308	NSK	Cylindrical Roller	40	90	33	18,500 lbs	0.943
NU2308E	NSK	Cylindrical Roller	40	90	33	140 kN	0.933
22308CAME4	NSK	Spherical Roller	40	90	33	27,400 lbs	0.984
22308EAE4	NSK	Spherical Roller	40	90	33	30,642 lbs	1.016
22308HE4	NSK	Spherical Roller	40	90	33	30,500 lbs	0.948
HR32308	NSK	Tapered Roller	40	90	33	147 kN	1.05
HR32308C	NSK	Tapered Roller	40	90	33	24,100 lbs	1.03
HR32308J	NSK	Tapered Roller	40	90	33	27,000 lbs	1.052
32308	Timken	Tapered Roller	40	90	33	133 kN	1.02

Same dimensions, same brand

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
2308-2RS-TVH	FAG	Ball	40	90	33	30 kN	1.01
2308-K-TVH-C3	FAG	Ball	40	90	33	46 kN	0.899
2308-TVH	FAG	Ball	40	90	33	46 kN	0.922
4308-B-TVH	FAG	Ball	40	90	33	67 kN	0.83
62308-2RSR	FAG	Ball	40	90	33	46.5 kN	0.882
NJ2308-E-TVP2	FAG	Cylindrical Roller	40	90	33	132 kN	0.978
NJ2308-E-XL-TVP2	FAG	Cylindrical Roller	40	90	33	132 kN	0.978
NU2308-E-TVP2	FAG	Cylindrical Roller	40	90	33	132 kN	0.958

Series variants (different suffix)

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
32308-B	FAG	Tapered Roller	40	90	33	121 kN	1.18
32308-XL	FAG	Tapered Roller	40	90	33	143 kN	1.09

Nearby bore sizes

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
30208-A	FAG	Tapered Roller	40	80	18	61 kN	0.435
30208-XL	FAG	Tapered Roller	40	80	18	73 kN	0.432
30308-A	FAG	Tapered Roller	40	90	23	92 kN	0.812
31308-A	FAG	Tapered Roller	40	90	23	76 kN	0.727
31308-A-N11CA-A50-90	FAG	Tapered Roller	40	90	None	130 kN	1.52
31308-XL	FAG	Tapered Roller	40	90	23	89 kN	0.723
31308-XL-DF-A115-155	FAG	Tapered Roller	40	90	None	153 kN	1.52
31308-XL-DF-A50-90	FAG	Tapered Roller	40	90	None	153 kN	1.52

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