51115NSKThrust

Name: NSK 51115 Thrust Bearing
Brand: NSK
SKU: 51115

51115 is a NSK thrust bearing, bore 75 mm, O.D. 100 mm, height 19 mm, dynamic rating 9,810 lbs. Dimensions, drawing, interchanges and price.

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Bore d75mm

Outside dia. D100mm

Overall width T19mm

Dynamic Cr9,810lbs

Static C0r29,500lbs

Limiting speed2,200rpm

Weight0.39kg

Cr / C0r0.33

Mean dia. dm87.5mm

Original catalogue drawing - NSK catalogue, page 145

51115 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	75	2.9528
D	Outside diameter	100	3.937
T	Overall assembly width	19	0.748

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)	75
Bore d (in)	2.9528
Outside dia. D (mm)	100
Outside dia. D (in)	3.9370
Overall width T (mm)	19
Overall width T (in)	0.7480

Load ratings & speeds

Basic dynamic axial rating Ca (lbs)	9810
Basic static axial rating Coa (lbs)	29500
Limiting speed - grease (rpm)	2,200
Limiting speed - oil (rpm)	3,400

Weight

Weight (kg)	0.39

Mounting dimensions (fillets / shoulders)

Chamfer r (in)	0.039
Shaft shoulder da min (in)	3.546
Housing shoulder Da (in)	3.349

Bearing life (ISO 281 basic rating life)

C / P	Equivalent load P (N)	L₁₀ (10⁶ rev)	L_10h at 700 rpm
4	10,909	102	2,419
6	7,273	392	9,345
8	5,455	1,024	24,381
10	4,364	2,154	51,296
15	2,909	8,323	198,178

Basic rating life per ISO 281: L₁₀ = (C/P)^10/3 with C = 43,637 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
29415	NSK	Thrust	75	160	51	515 kN	4.65
29415E	NSK	Thrust	75	160	51	116,000 lbs	4.672
51215	NSK	Thrust	75	110	27	17,500 lbs	0.844
51315	NSK	Thrust	75	135	44	35,700 lbs	2.599
51415	NSK	Thrust	75	160	65	57,100 lbs	6.151
52215	NSK	Thrust	75	110	None	78 kN	1.66
52315	NSK	Thrust	75	135	None	159 kN	5.14
52415	NSK	Thrust	75	160	None	254 kN	11

Request a quotation for 51115

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