T4DB190FAGTapered Roller

Name: FAG T4DB190 Tapered Roller Bearing
Brand: FAG
SKU: T4DB190

T4DB190 is a FAG tapered roller bearing, bore 190 mm, O.D. 260 mm, width 34 mm, dynamic rating 300 kN. Dimensions, drawing, interchanges and price.

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Bore d190mm

Outside dia. D260mm

Width B34mm

Dynamic Cr300kN

Static C0r520kN

Limiting speed2,600rpm

Weight5.32kg

Cr / C0r0.58

Mean dia. dm225mm

Original catalogue drawing - FAG Schaeffler HR 1, page 608

T4DB190 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	190	7.4803
D	Outside diameter	260	10.2362
B	Inner-ring / bearing width	34	1.3386
T	Overall assembly width	37	1.4567
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)	190
Outside dia. D (mm)	260
Width B (mm)	34
Overall width T (mm)	37
Cup width C (mm)	27
Inner-ring OD d1 (mm)	223.5

Load ratings & speeds

Basic dynamic load rating Cr (lbs)	67443
Basic static load rating Cor (lbs)	116901
Basic dynamic load rating Cr (N)	300000
Basic static load rating C0r (N)	520000
Basic dynamic axial rating Ca (N)	7
Fatigue limit load Cur (N)	60000
Factor e	0.45
Factor Y	1.33
Factor Y0	0.73
Limiting speed nG (rpm)	2,600
Reference speed nB (rpm)	1,630
Effective load centre a (mm)	50

Weight

Weight (kg)	5.32

Mounting dimensions (fillets / shoulders)

Chamfer r2 min (mm)	3
Shaft shoulder da (mm)	204
Shaft shoulder db (mm)	207
Housing shoulder Da (mm)	241
Housing shoulder Db (mm)	251
Housing fillet ra max (mm)	3
Fillet rb max (mm)	3

Bearing life (ISO 281 basic rating life)

C / P	Equivalent load P (N)	L₁₀ (10⁶ rev)	L_10h at 800 rpm
4	75,000	102	2,117
6	50,000	392	8,177
8	37,500	1,024	21,333
10	30,000	2,154	44,884
15	20,000	8,323	173,406

Basic rating life per ISO 281: L₁₀ = (C/P)^10/3 with C = 300,000 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.608 (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
T4DB020	FAG	Tapered Roller	20	45	14	22.2 kN	0.103
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

Nearby bore sizes

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
30238	FAG	Tapered Roller	190	340	55	530 kN	20.8
30238-XL	FAG	Tapered Roller	190	340	55	800 kN	21.4
30338	FAG	Tapered Roller	190	400	78	1210 kN	46.7
32038-X	FAG	Tapered Roller	190	290	64	630 kN	14.8
32038-X-XL	FAG	Tapered Roller	190	290	64	740 kN	14.6
32038-X-XL-DF-A120-150	FAG	Tapered Roller	190	290	None	1280 kN	30.1
32038-X-XL-DF-A200-250	FAG	Tapered Roller	190	290	None	1280 kN	30.1
32038-X-XL-DF-A300-350	FAG	Tapered Roller	190	290	None	1280 kN	30.1

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