51316NSKThrust

Name: NSK 51316 Thrust Bearing
Brand: NSK
SKU: 51316

51316 is a NSK thrust bearing, bore 80 mm, O.D. 140 mm, height 44 mm, dynamic rating 36,800 lbs. Dimensions, drawing, interchanges and price.

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Bore d80mm

Outside dia. D140mm

Overall width T44mm

Dynamic Cr36,800lbs

Static C0r88,200lbs

Limiting speed1,300rpm

Weight2.74kg

Cr / C0r0.42

Mean dia. dm110mm

Original catalogue drawing - NSK catalogue, page 145

51316 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	80	3.1496
D	Outside diameter	140	5.5118
T	Overall assembly width	44	1.7323

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)	80
Bore d (in)	3.1496
Outside dia. D (mm)	140
Outside dia. D (in)	5.5118
Overall width T (mm)	44
Overall width T (in)	1.7323

Load ratings & speeds

Basic dynamic axial rating Ca (lbs)	36800
Basic static axial rating Coa (lbs)	88200
Limiting speed - grease (rpm)	1,300
Limiting speed - oil (rpm)	1,900

Weight

Weight (kg)	2.74

Mounting dimensions (fillets / shoulders)

Chamfer r (in)	0.059
Shaft shoulder da min (in)	4.570
Housing shoulder Da (in)	4.098

Bearing life (ISO 281 basic rating life)

C / P	Equivalent load P (N)	L₁₀ (10⁶ rev)	L_10h at 400 rpm
4	40,924	102	4,233
6	27,282	392	16,354
8	20,462	1,024	42,667
10	16,369	2,154	89,768
15	10,913	8,323	346,811

Basic rating life per ISO 281: L₁₀ = (C/P)^10/3 with C = 163,695 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
29416	NSK	Thrust	80	170	54	575 kN	5.55
29416E	NSK	Thrust	80	170	54	129,000 lbs	5.534
51116	NSK	Thrust	80	105	19	10,100 lbs	0.417
51216	NSK	Thrust	80	115	28	17,700 lbs	0.93
51416	NSK	Thrust	80	170	68	61,300 lbs	7.212
52316	NSK	Thrust	80	140	None	164 kN	5.39
52416	NSK	Thrust	80	170	None	272 kN	12.8
29415	NSK	Thrust	75	160	51	515 kN	4.65

Request a quotation for 51316

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