51307NSKThrust

Name: NSK 51307 Thrust Bearing
Brand: NSK
SKU: 51307

51307 is a NSK thrust bearing, bore 35 mm, O.D. 68 mm, height 24 mm, dynamic rating 12,500 lbs. Dimensions, drawing, interchanges and price.

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Bore d35mm

Outside dia. D68mm

Overall width T24mm

Dynamic Cr12,500lbs

Static C0r23,500lbs

Limiting speed2,400rpm

Weight0.386kg

Cr / C0r0.53

Mean dia. dm51.5mm

Original catalogue drawing - NSK catalogue, page 143

51307 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	35	1.378
D	Outside diameter	68	2.6772
T	Overall assembly width	24	0.9449

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)	35
Bore d (in)	1.3780
Outside dia. D (mm)	68
Outside dia. D (in)	2.6772
Overall width T (mm)	24
Overall width T (in)	0.9449

Load ratings & speeds

Basic dynamic axial rating Ca (lbs)	12500
Basic static axial rating Coa (lbs)	23500
Limiting speed - grease (rpm)	2,400
Limiting speed - oil (rpm)	3,800

Weight

Weight (kg)	0.386

Mounting dimensions (fillets / shoulders)

Chamfer r (in)	0.039
Shaft shoulder da min (in)	2.167
Housing shoulder Da (in)	1.891

Bearing life (ISO 281 basic rating life)

C / P	Equivalent load P (N)	L₁₀ (10⁶ rev)	L_10h at 800 rpm
4	13,901	102	2,117
6	9,267	392	8,177
8	6,950	1,024	21,333
10	5,560	2,154	44,884
15	3,707	8,323	173,406

Basic rating life per ISO 281: L₁₀ = (C/P)^10/3 with C = 55,603 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.145 (dimensions) / p.146 (ratings)

Dimensions in inches and millimetres, load ratings in lbs.

Nearby bore sizes

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
51107	NSK	Thrust	35	52	12	4,960 lbs	0.081
51207	NSK	Thrust	35	62	18	8,920 lbs	0.21
51407	NSK	Thrust	35	80	32	19,700 lbs	0.769
52207	NSK	Thrust	35	62	None	39.5 kN	0.447
52307	NSK	Thrust	35	68	None	56 kN	0.744
51106	NSK	Thrust	30	47	11	4,630 lbs	0.064
51206	NSK	Thrust	30	52	16	6,610 lbs	0.137
51306	NSK	Thrust	30	60	21	9,700 lbs	0.267

Request a quotation for 51307

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