T4DB020FAGTapered Roller

Name: FAG T4DB020 Tapered Roller Bearing
Brand: FAG
SKU: T4DB020

T4DB020 is a FAG tapered roller bearing, bore 20 mm, O.D. 45 mm, width 14 mm, dynamic rating 22.2 kN. Dimensions, drawing, interchanges and price.

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Bore d20mm

Outside dia. D45mm

Width B14mm

Dynamic Cr22.2kN

Static C0r21.1kN

Limiting speed17,500rpm

Weight0.103kg

Cr / C0r1.05

Mean dia. dm32.5mm

Original catalogue drawing - FAG Schaeffler HR 1, page 586

T4DB020 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	20	0.7874
D	Outside diameter	45	1.7717
B	Inner-ring / bearing width	14	0.5512
T	Overall assembly width	14	0.5512
C	Cup / outer-ring width	10	0.3937

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)	45
Width B (mm)	14
Overall width T (mm)	14
Cup width C (mm)	10
Inner-ring OD d1 (mm)	32.9

Load ratings & speeds

Basic dynamic load rating Cr (lbs)	4991
Basic static load rating Cor (lbs)	4743
Basic dynamic load rating Cr (N)	22200
Basic static load rating C0r (N)	21100
Basic dynamic axial rating Ca (N)	3
Fatigue limit load Cur (N)	2240
Factor e	0.45
Factor Y	1.34
Factor Y0	0.73
Limiting speed nG (rpm)	17,500
Reference speed nB (rpm)	10,700
Effective load centre a (mm)	11

Weight

Weight (kg)	0.103

Mounting dimensions (fillets / shoulders)

Chamfer r2 min (mm)	1
Shaft shoulder da (mm)	26
Shaft shoulder db (mm)	27
Housing shoulder Da (mm)	38
Housing shoulder Db (mm)	42
Housing fillet ra max (mm)	1
Fillet rb 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	5,550	102	564
6	3,700	392	2,181
8	2,775	1,024	5,689
10	2,220	2,154	11,969
15	1,480	8,323	46,241

Basic rating life per ISO 281: L₁₀ = (C/P)^10/3 with C = 22,200 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.586 (dimensions)

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

Series variants (different suffix)

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
T4DB032	FAG	Tapered Roller	32	65	17.5	43.5 kN	0.262
T4DB035	FAG	Tapered Roller	35	70	18	51 kN	0.317
T4DB045	FAG	Tapered Roller	45	85	20	69 kN	0.497
T4DB050	FAG	Tapered Roller	50	90	20	71 kN	0.534
T4DB150	FAG	Tapered Roller	150	210	30	217 kN	3.1
T4DB160	FAG	Tapered Roller	160	220	30	226 kN	3.3
T4DB170	FAG	Tapered Roller	170	230	30	231 kN	4.31
T4DB180	FAG	Tapered Roller	180	240	30	230 kN	3.65

Nearby bore sizes

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
30204-A	FAG	Tapered Roller	20	47	14	26.5 kN	0.092
30204-XL	FAG	Tapered Roller	20	47	14	32 kN	0.121
30304-A	FAG	Tapered Roller	20	52	15	34 kN	0.188
31304	FAG	Tapered Roller	20	52	15	30 kN	0.174
32004-X	FAG	Tapered Roller	20	42	15	23.5 kN	0.108
32004-X-XL	FAG	Tapered Roller	20	42	15	28.5 kN	0.111
32204-B-XL	FAG	Tapered Roller	20	47	18	39 kN	0.17
32204-XL	FAG	Tapered Roller	20	47	18	40.5 kN	0.165

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