51326XNSKThrust

Name: NSK 51326X Thrust Bearing
Brand: NSK
SKU: 51326X

51326X is a NSK thrust bearing, bore 130 mm, O.D. 225 mm, height 75 mm, dynamic rating 78,300 lbs. Dimensions, drawing, interchanges and price.

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Bore d130mm

Outside dia. D225mm

Overall width T75mm

Dynamic Cr78,300lbs

Static C0r231,000lbs

Limiting speed7,500rpm

Weight12.102kg

Cr / C0r0.34

Mean dia. dm177.5mm

Original catalogue drawing - NSK catalogue, page 147

51326X 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	130	5.1181
D	Outside diameter	225	8.8583
T	Overall assembly width	75	2.9528

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)	130
Bore d (in)	5.1181
Outside dia. D (mm)	225
Outside dia. D (in)	8.8583
Overall width T (mm)	75
Overall width T (in)	2.9528

Load ratings & speeds

Basic dynamic axial rating Ca (lbs)	78300
Basic static axial rating Coa (lbs)	231000
Limiting speed - grease (rpm)	7,500
Limiting speed - oil (rpm)	1,100

Weight

Weight (kg)	12.102

Mounting dimensions (fillets / shoulders)

Chamfer r (in)	0.079
Shaft shoulder da min (in)	7.328
Housing shoulder Da (in)	6.659

Bearing life (ISO 281 basic rating life)

C / P	Equivalent load P (N)	L₁₀ (10⁶ rev)	L_10h at 2,500 rpm
4	87,074	102	677
6	58,049	392	2,617
8	43,537	1,024	6,827
10	34,830	2,154	14,363
15	23,220	8,323	55,490

Basic rating life per ISO 281: L₁₀ = (C/P)^10/3 with C = 348,296 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.149 (dimensions) / p.150 (ratings)

Dimensions in inches and millimetres, load ratings in lbs.

Nearby bore sizes

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
29326	NSK	Thrust	130	225	58	740 kN	8.95
29326E	NSK	Thrust	130	225	58	166,000 lbs	8.936
29426	NSK	Thrust	130	270	85	1330 kN	21.1
29426E	NSK	Thrust	130	270	85	298,000 lbs	21.092
51126	NSK	Thrust	130	170	30	23,600 lbs	1.678
51226	NSK	Thrust	130	190	45	183 kN	4.35
51226X	NSK	Thrust	130	190	45	41,200 lbs	3.951
51228	NSK	Thrust	130	200	46	186 kN	4.74

Request a quotation for 51326X

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