51118NSKThrust

Name: NSK 51118 Thrust Bearing
Brand: NSK
SKU: 51118

51118 is a NSK thrust bearing, bore 90 mm, O.D. 120 mm, height 22 mm, dynamic rating 13,600 lbs. Dimensions, drawing, interchanges and price.

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Bore d90mm

Outside dia. D120mm

Overall width T22mm

Dynamic Cr13,600lbs

Static C0r42,800lbs

Limiting speed1,900rpm

Weight0.644kg

Cr / C0r0.32

Mean dia. dm105mm

Original catalogue drawing - NSK catalogue, page 147

51118 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	90	3.5433
D	Outside diameter	120	4.7244
T	Overall assembly width	22	0.8661

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)	90
Bore d (in)	3.5433
Outside dia. D (mm)	120
Outside dia. D (in)	4.7244
Overall width T (mm)	22
Overall width T (in)	0.8661

Load ratings & speeds

Basic dynamic axial rating Ca (lbs)	13600
Basic static axial rating Coa (lbs)	42800
Limiting speed - grease (rpm)	1,900
Limiting speed - oil (rpm)	3,000

Weight

Weight (kg)	0.644

Mounting dimensions (fillets / shoulders)

Chamfer r (in)	0.039
Shaft shoulder da min (in)	4.255
Housing shoulder Da (in)	4.019

Bearing life (ISO 281 basic rating life)

C / P	Equivalent load P (N)	L₁₀ (10⁶ rev)	L_10h at 600 rpm
4	15,124	102	2,822
6	10,083	392	10,903
8	7,562	1,024	28,444
10	6,050	2,154	59,845
15	4,033	8,323	231,207

Basic rating life per ISO 281: L₁₀ = (C/P)^10/3 with C = 60,496 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
29318E	NSK	Thrust	90	150	39	78,500 lbs	2.835
29418E	NSK	Thrust	90	190	60	156,000 lbs	7.53
51218	NSK	Thrust	90	135	35	25,600 lbs	1.692
51318	NSK	Thrust	90	155	50	48,300 lbs	3.828
51418	NSK	Thrust	90	190	77	330 kN	10.3
51418X	NSK	Thrust	90	190	77	73,900 lbs	10.201
52318	NSK	Thrust	90	155	None	214 kN	7.33
52418	NSK	Thrust	90	190	None	330 kN	18.1

Request a quotation for 51118

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