51315NSKThrust

Name: NSK 51315 Thrust Bearing
Brand: NSK
SKU: 51315

51315 is a NSK thrust bearing, bore 75 mm, O.D. 135 mm, height 44 mm, dynamic rating 35,700 lbs. Dimensions, drawing, interchanges and price.

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Bore d75mm

Outside dia. D135mm

Overall width T44mm

Dynamic Cr35,700lbs

Static C0r82,700lbs

Limiting speed1,300rpm

Weight2.599kg

Cr / C0r0.43

Mean dia. dm105mm

Original catalogue drawing - NSK catalogue, page 145

51315 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	135	5.315
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)	75
Bore d (in)	2.9528
Outside dia. D (mm)	135
Outside dia. D (in)	5.3150
Overall width T (mm)	44
Overall width T (in)	1.7323

Load ratings & speeds

Basic dynamic axial rating Ca (lbs)	35700
Basic static axial rating Coa (lbs)	82700
Limiting speed - grease (rpm)	1,300
Limiting speed - oil (rpm)	1,900

Weight

Weight (kg)	2.599

Mounting dimensions (fillets / shoulders)

Chamfer r (in)	0.059
Shaft shoulder da min (in)	4.373
Housing shoulder Da (in)	3.901

Bearing life (ISO 281 basic rating life)

C / P	Equivalent load P (N)	L₁₀ (10⁶ rev)	L_10h at 400 rpm
4	39,700	102	4,233
6	26,467	392	16,354
8	19,850	1,024	42,667
10	15,880	2,154	89,768
15	10,587	8,323	346,811

Basic rating life per ISO 281: L₁₀ = (C/P)^10/3 with C = 158,802 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
51115	NSK	Thrust	75	100	19	9,810 lbs	0.39
51215	NSK	Thrust	75	110	27	17,500 lbs	0.844
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 51315

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