NA53176/53390DTimkenTapered Roller

Name: Timken NA53176/53390D Tapered Roller Bearing
Brand: Timken
SKU: NA53176/53390D

NA53176/53390D is a Timken tapered roller bearing, bore 44.45 mm, O.D. 98.42 mm, height 65.09 mm. Dimensions, drawing, interchanges and price.

Cone + cup assembly

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Bore d44.45mm

Outside dia. D98.42mm

Overall width T65.09mm

Dynamic Cr174kN

Weight2.1kg

Mean dia. dm71.4mm

Original catalogue drawing - Timken TRB Catalog, page 652

NA53176/53390D Timken 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	44.45	1.75
D	Outside diameter	98.425	3.875
T	Overall assembly width	65.09	2.5626
C	Cup / outer-ring width	44.45	1.75
r	Chamfer (min)	1.5	0.0591

Notes

Tapered roller bearings are cone / cup assemblies; cone and cup weights are listed separately and the total is their sum. 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)	44.450
Bore d (in)	1.7500
Outside dia. D (mm)	98.425
Outside dia. D (in)	3.8750
Overall width T (mm)	65.090
Overall width T (in)	2.5626
Cup width C (mm)	44.450
Cup width C (in)	1.7500

Load ratings & speeds

Basic dynamic load rating Cr (lbs)	39200
Basic dynamic load rating Cr (N)	174000
Dynamic rating C1 (N, ISO)	174000
Dynamic rating C1 (lbf, ISO)	39200
Radial rating C90 (N)	26000
Radial rating C90 (lbf)	5840
Thrust rating Ca90 (N)	32900
Thrust rating Ca90 (lbf)	7390
Factor e	0.74
Factor Y1	0.91
Factor Y2	1.36
Factor K	0.79

Weight

Weight (kg)	2.1

Mounting dimensions (fillets / shoulders)

Shaft fillet R max (mm)	2.3
Housing fillet r max (mm)	1.5
Shaft shoulder db (mm)	61.0
Housing shoulder Da (mm)	90.0

Bearing life (ISO 281 basic rating life)

C / P	Equivalent load P (N)	L₁₀ (10⁶ rev)	L_10h at 500 rpm
4	43,500	102	3,386
6	29,000	392	13,083
8	21,750	1,024	34,133
10	17,400	2,154	71,814
15	11,600	8,323	277,449

Basic rating life per ISO 281: L₁₀ = (C/P)^10/3 with C = 174,000 N. Hours = L₁₀ x 10⁶ / (60n). Life-modification factors for lubrication, contamination and temperature (a_ISO) are not included.

Source & traceability

Brand	Timken
Source catalogue	Timken Tapered Roller Bearing Catalog (2016)
Catalogue page	p.652 (dimensions)
Series type	TNA

ISO dynamic rating C1, Timken C90 / Ca90, static rating C0, geometry factors and assembly weight.

Same dimensions, same brand

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
53177/53390D	Timken	Tapered Roller	44.45	98.42	65.09	207 kN	2.07

Nearby bore sizes

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
12175/12303	Timken	Tapered Roller	44.45	76.99	17.14	49.5 kN	0.31
13175/13318	Timken	Tapered Roller	44.45	80.96	17.46	50.8 kN	0.39
13176D/13318	Timken	Tapered Roller	44.45	80.96	31.75	88.5 kN	0.74
17884/17830	Timken	Tapered Roller	44.45	79.38	33.55	-	0.52
18685/18620	Timken	Tapered Roller	44.45	79.38	17.46	52 kN	0.34
18685/18620D	Timken	Tapered Roller	44.45	79.38	41.27	90.6 kN	0.78
25580/25518	Timken	Tapered Roller	44.45	81.97	25.4	-	0.53
25580/25519	Timken	Tapered Roller	44.45	82.55	25.4	90.5 kN	0.55

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