293/500NSKThrust

Name: NSK 293/500 Thrust Bearing
Brand: NSK
SKU: 293/500

293/500 is a NSK thrust bearing, bore 500 mm, O.D. 750 mm, height 150 mm, dynamic rating 978,000 lbs. Dimensions, drawing, interchanges and price.

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Bore d500mm

Outside dia. D750mm

Height H150mm

Dynamic Cr978,000lbs

Static C0r4,590,000lbs

Speed450rpm

Weight219.992kg

Cr / C0r0.21

Mean dia. dm625mm

Original catalogue drawing - NSK catalogue, page 153

293/500 NSK Thrust 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	500	19.685
D	Outside diameter	750	29.5276
C	Cup / outer-ring width	73.99	2.913
H	Height	150	5.9055

Notes

Thrust bearing ratings are axial values Ca / Coa; T is the overall height. 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)	500
Bore d (in)	19.6850
Outside dia. D (mm)	750
Outside dia. D (in)	29.5276
Cup width C (in)	2.913
Height H (mm)	150
Height H (in)	5.9055
Bore d1 (in)	28.150
Outside dia. D1 (in)	24.055

Load ratings & speeds

Basic dynamic axial rating Ca (lbs)	978000
Basic static axial rating Coa (lbs)	4590000
Limiting speed - oil (rpm)	450

Weight

Weight (kg)	219.992

Mounting dimensions (fillets / shoulders)

Chamfer r (in)	0.197
Shaft shoulder da min (in)	26.378
Housing shoulder Da (in)	24.213

Bearing life (ISO 281 basic rating life)

C / P	Equivalent load P (N)	L₁₀ (10⁶ rev)	L_10h at 100 rpm
4	1,087,590	102	16,932
6	725,060	392	65,416
8	543,795	1,024	170,667
10	435,036	2,154	359,072
15	290,024	8,323	1,387,244

Basic rating life per ISO 281: L₁₀ = (C/P)^10/3 with C = 4,350,361 N. Hours = L₁₀ x 10⁶ / (60n). Life-modification factors for lubrication, contamination and temperature (a_ISO) are not included.

Source & traceability

Brand	NSK
Source catalogue	NSK inch product catalogue
Catalogue page	p.155 (dimensions) / p.156 (ratings)

Dimensions in inches and millimetres, load ratings in lbs.

Nearby bore sizes

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
292/500	NSK	Thrust	500	670	103	537,000 lbs	99.79
294/500	NSK	Thrust	500	870	224	1,760,000 lbs	557.919

Request a quotation for 293/500

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