NA558SW/552DTimkenTapered Roller

Name: Timken NA558SW/552D Tapered Roller Bearing
Brand: Timken
SKU: NA558SW/552D

NA558SW/552D is a Timken tapered roller bearing, bore 60.33 mm, O.D. 123.83 mm, height 79.38 mm. Dimensions, drawing, interchanges and price.

Cone + cup assembly

Request a quote WhatsApp Email us Search the catalog

Bore d60.33mm

Outside dia. D123.83mm

Overall width T79.38mm

Dynamic Cr332kN

Weight4.33kg

Mean dia. dm92.1mm

Original catalogue drawing - Timken TRB Catalog, page 662

NA558SW/552D 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	60.325	2.375
D	Outside diameter	123.825	4.875
T	Overall assembly width	79.375	3.125
C	Cup / outer-ring width	63.5	2.5
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)	60.325
Bore d (in)	2.3750
Outside dia. D (mm)	123.825
Outside dia. D (in)	4.8750
Overall width T (mm)	79.375
Overall width T (in)	3.1250
Cup width C (mm)	63.500
Cup width C (in)	2.5000

Load ratings & speeds

Basic dynamic load rating Cr (lbs)	74700
Basic dynamic load rating Cr (N)	332000
Dynamic rating C1 (N, ISO)	332000
Dynamic rating C1 (lbf, ISO)	74700
Radial rating C90 (N)	49400
Radial rating C90 (lbf)	11100
Thrust rating Ca90 (N)	29300
Thrust rating Ca90 (lbf)	6590
Factor e	0.35
Factor Y1	1.95
Factor Y2	2.90
Factor K	1.69

Weight

Weight (kg)	4.33

Mounting dimensions (fillets / shoulders)

Shaft fillet R max (mm)	3.5
Housing fillet r max (mm)	1.5
Shaft shoulder db (mm)	76.0
Housing shoulder Da (mm)	115.0

Bearing life (ISO 281 basic rating life)

C / P	Equivalent load P (N)	L₁₀ (10⁶ rev)	L_10h at 500 rpm
4	83,000	102	3,386
6	55,333	392	13,083
8	41,500	1,024	34,133
10	33,200	2,154	71,814
15	22,133	8,323	277,449

Basic rating life per ISO 281: L₁₀ = (C/P)^10/3 with C = 332,000 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.662 (dimensions)
Series type	TNASW

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
558/552D	Timken	Tapered Roller	60.33	123.83	79.38	394 kN	4.32
558A/552D	Timken	Tapered Roller	60.33	123.83	79.38	332 kN	4.3

Nearby bore sizes

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
28985/28919	Timken	Tapered Roller	60.33	99.98	25.4	-	0.75
28985/28920	Timken	Tapered Roller	60.33	101.6	25.4	106 kN	0.78
28985/28921	Timken	Tapered Roller	60.33	100	25.4	106 kN	0.74
28985/28921A	Timken	Tapered Roller	60.33	100	25.4	106 kN	0.76
28985/28921D	Timken	Tapered Roller	60.33	100	55.56	185 kN	1.64
3960/3919RB	Timken	Tapered Roller	60.33	112.71	36.4	-	1.42
3980/3920	Timken	Tapered Roller	60.33	112.71	30.05	139 kN	1.3
3980/3925	Timken	Tapered Roller	60.33	112.71	30.05	139 kN	1.31

Request a quotation for NA558SW/552D

Send us the quantity you need and we will come back with price and lead time, normally within 24 hours. Equivalent parts from other brands can be quoted at the same time.

Online enquiry form richard@bearingsfit.com WhatsApp +86 156 2149 6516