51312NSKThrust

Name: NSK 51312 Thrust Bearing
Brand: NSK
SKU: 51312

51312 is a NSK thrust bearing, bore 60 mm, O.D. 110 mm, height 35 mm, dynamic rating 26,700 lbs. Dimensions, drawing, interchanges and price.

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Bore d60mm

Outside dia. D110mm

Overall width T35mm

Dynamic Cr26,700lbs

Static C0r59,100lbs

Limiting speed1,600rpm

Weight1.402kg

Cr / C0r0.45

Mean dia. dm85mm

Original catalogue drawing - NSK catalogue, page 145

51312 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	60	2.3622
D	Outside diameter	110	4.3307
T	Overall assembly width	35	1.378

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)	60
Bore d (in)	2.3622
Outside dia. D (mm)	110
Outside dia. D (in)	4.3307
Overall width T (mm)	35
Overall width T (in)	1.3780

Load ratings & speeds

Basic dynamic axial rating Ca (lbs)	26700
Basic static axial rating Coa (lbs)	59100
Limiting speed - grease (rpm)	1,600
Limiting speed - oil (rpm)	2,400

Weight

Weight (kg)	1.402

Mounting dimensions (fillets / shoulders)

Chamfer r (in)	0.039
Shaft shoulder da min (in)	3.546
Housing shoulder Da (in)	3.152

Bearing life (ISO 281 basic rating life)

C / P	Equivalent load P (N)	L₁₀ (10⁶ rev)	L_10h at 500 rpm
4	29,692	102	3,386
6	19,795	392	13,083
8	14,846	1,024	34,133
10	11,877	2,154	71,814
15	7,918	8,323	277,449

Basic rating life per ISO 281: L₁₀ = (C/P)^10/3 with C = 118,768 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
29412	NSK	Thrust	60	130	42	330 kN	-
29412E	NSK	Thrust	60	130	42	74,500 lbs	2.54
51112	NSK	Thrust	60	85	17	9,370 lbs	0.281
51212	NSK	Thrust	60	95	26	16,100 lbs	0.671
51412	NSK	Thrust	60	130	51	45,400 lbs	3.162
52312	NSK	Thrust	60	110	None	119 kN	2.82
52412	NSK	Thrust	60	130	None	202 kN	5.82
51111	NSK	Thrust	55	78	16	7,940 lbs	0.227

Request a quotation for 51312

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