29256NSKThrust

Name: NSK 29256 Thrust Bearing
Brand: NSK
SKU: 29256

29256 is a NSK thrust bearing, bore 280 mm, O.D. 380 mm, height 60 mm, dynamic rating 199,000 lbs. Dimensions, drawing, interchanges and price.

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Bore d280mm

Outside dia. D380mm

Overall width T60mm

Dynamic Cr199,000lbs

Static C0r922,000lbs

Speed1,100rpm

Weight19.051kg

Cr / C0r0.22

Mean dia. dm330mm

Original catalogue drawing - NSK catalogue, page 151

29256 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	280	11.0236
D	Outside diameter	380	14.9606
T	Overall assembly width	60	2.3622
C	Cup / outer-ring width	29.997	1.181

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)	280
Bore d (in)	11.0236
Outside dia. D (mm)	380
Outside dia. D (in)	14.9606
Overall width T (mm)	60
Overall width T (in)	2.3622
Cup width C (in)	1.181
Bore d1 (in)	14.370
Outside dia. D1 (in)	12.717

Load ratings & speeds

Basic dynamic axial rating Ca (lbs)	199000
Basic static axial rating Coa (lbs)	922000
Limiting speed - oil (rpm)	1,100

Weight

Weight (kg)	19.051

Mounting dimensions (fillets / shoulders)

Chamfer r (in)	0.079
Shaft shoulder da min (in)	13.583
Housing shoulder Da (in)	12.795

Bearing life (ISO 281 basic rating life)

C / P	Equivalent load P (N)	L₁₀ (10⁶ rev)	L_10h at 300 rpm
4	221,299	102	5,644
6	147,533	392	21,805
8	110,650	1,024	56,889
10	88,520	2,154	119,691
15	59,013	8,323	462,415

Basic rating life per ISO 281: L₁₀ = (C/P)^10/3 with C = 885,196 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.153 (dimensions) / p.154 (ratings)

Dimensions in inches and millimetres, load ratings in lbs.

Interchange - same dimensions, other brands

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
SL182956	FAG	Cylindrical Roller	280	380	60	920 kN	19.7
SL182956-TB	FAG	Cylindrical Roller	280	380	60	910 kN	19.7

Nearby bore sizes

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
29356	NSK	Thrust	280	440	95	411,000 lbs	52.617
29456	NSK	Thrust	280	520	145	764,000 lbs	131.995

Request a quotation for 29256

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Online enquiry form richard@bearingsfit.com WhatsApp +86 156 2149 6516