51417XNSKThrust

Name: NSK 51417X Thrust Bearing
Brand: NSK
SKU: 51417X

51417X is a NSK thrust bearing, bore 85 mm, O.D. 180 mm, height 72 mm, dynamic rating 69,400 lbs. Dimensions, drawing, interchanges and price.

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Bore d85mm

Outside dia. D180mm

Overall width T72mm

Dynamic Cr69,400lbs

Static C0r170,000lbs

Limiting speed900rpm

Weight8.509kg

Cr / C0r0.41

Mean dia. dm132.5mm

Original catalogue drawing - NSK catalogue, page 145

51417X 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	85	3.3465
D	Outside diameter	180	7.0866
T	Overall assembly width	72	2.8346

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)	85
Bore d (in)	3.3465
Outside dia. D (mm)	180
Outside dia. D (in)	7.0866
Overall width T (mm)	72
Overall width T (in)	2.8346

Load ratings & speeds

Basic dynamic axial rating Ca (lbs)	69400
Basic static axial rating Coa (lbs)	170000
Limiting speed - grease (rpm)	900
Limiting speed - oil (rpm)	1,300

Weight

Weight (kg)	8.509

Mounting dimensions (fillets / shoulders)

Chamfer r (in)	0.079
Shaft shoulder da min (in)	5.555
Housing shoulder Da (in)	4.886

Bearing life (ISO 281 basic rating life)

C / P	Equivalent load P (N)	L₁₀ (10⁶ rev)	L_10h at 300 rpm
4	77,177	102	5,644
6	51,451	392	21,805
8	38,588	1,024	56,889
10	30,871	2,154	119,691
15	20,580	8,323	462,415

Basic rating life per ISO 281: L₁₀ = (C/P)^10/3 with C = 308,707 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.

Same dimensions, same brand

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
51417	NSK	Thrust	85	180	72	310 kN	8.72

Nearby bore sizes

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
29317	NSK	Thrust	85	150	39	330 kN	2.7
29317E	NSK	Thrust	85	150	39	74,500 lbs	2.699
29417E	NSK	Thrust	85	180	58	142,000 lbs	6.532
29418	NSK	Thrust	85	190	60	695 kN	7.55
51117	NSK	Thrust	85	110	19	10,400 lbs	0.44
51217	NSK	Thrust	85	125	31	21,600 lbs	1.22
51317	NSK	Thrust	85	150	49	46,500 lbs	3.57
51417	NSK	Thrust	85	180	72	310 kN	8.72

Request a quotation for 51417X

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