51113NSKThrust

Name: NSK 51113 Thrust Bearing
Brand: NSK
SKU: 51113

51113 is a NSK thrust bearing, bore 65 mm, O.D. 90 mm, height 18 mm, dynamic rating 9,480 lbs. Dimensions, drawing, interchanges and price.

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Bore d65mm

Outside dia. D90mm

Overall width T18mm

Dynamic Cr9,480lbs

Static C0r26,500lbs

Limiting speed2,400rpm

Weight0.322kg

Cr / C0r0.36

Mean dia. dm77.5mm

Original catalogue drawing - NSK catalogue, page 145

51113 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	65	2.5591
D	Outside diameter	90	3.5433
T	Overall assembly width	18	0.7087

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)	65
Bore d (in)	2.5591
Outside dia. D (mm)	90
Outside dia. D (in)	3.5433
Overall width T (mm)	18
Overall width T (in)	0.7087

Load ratings & speeds

Basic dynamic axial rating Ca (lbs)	9480
Basic static axial rating Coa (lbs)	26500
Limiting speed - grease (rpm)	2,400
Limiting speed - oil (rpm)	3,800

Weight

Weight (kg)	0.322

Mounting dimensions (fillets / shoulders)

Chamfer r (in)	0.039
Shaft shoulder da min (in)	3.152
Housing shoulder Da (in)	2.955

Bearing life (ISO 281 basic rating life)

C / P	Equivalent load P (N)	L₁₀ (10⁶ rev)	L_10h at 800 rpm
4	10,542	102	2,117
6	7,028	392	8,177
8	5,271	1,024	21,333
10	4,217	2,154	44,884
15	2,811	8,323	173,406

Basic rating life per ISO 281: L₁₀ = (C/P)^10/3 with C = 42,169 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.147 (dimensions) / p.148 (ratings)

Dimensions in inches and millimetres, load ratings in lbs.

Nearby bore sizes

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
29413E	NSK	Thrust	65	140	45	91,000 lbs	3.198
51213	NSK	Thrust	65	100	27	17,000 lbs	0.757
51313	NSK	Thrust	65	115	36	27,600 lbs	1.542
51413	NSK	Thrust	65	140	56	52,500 lbs	4.1
52213	NSK	Thrust	65	100	None	75.5 kN	1.45
52313	NSK	Thrust	65	115	None	123 kN	3.06
52413	NSK	Thrust	65	140	None	234 kN	7.66
29412	NSK	Thrust	60	130	42	330 kN	-

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