29438NSKThrust

Name: NSK 29438 Thrust Bearing
Brand: NSK
SKU: 29438

29438 is a NSK thrust bearing, bore 190 mm, O.D. 380 mm, height 115 mm, dynamic rating 475,000 lbs. Dimensions, drawing, interchanges and price.

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Bore d190mm

Outside dia. D380mm

Overall width T115mm

Dynamic Cr475,000lbs

Static C0r1,670,000lbs

Speed900rpm

Weight59.874kg

Cr / C0r0.28

Mean dia. dm285mm

Original catalogue drawing - NSK catalogue, page 149

29438 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	190	7.4803
D	Outside diameter	380	14.9606
T	Overall assembly width	115	4.5276
C	Cup / outer-ring width	54.991	2.165

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)	190
Bore d (in)	7.4803
Outside dia. D (mm)	380
Outside dia. D (in)	14.9606
Overall width T (mm)	115
Overall width T (in)	4.5276
Cup width C (in)	2.165
Bore d1 (in)	13.583
Outside dia. D1 (in)	10.669

Load ratings & speeds

Basic dynamic axial rating Ca (lbs)	475000
Basic static axial rating Coa (lbs)	1670000
Limiting speed - oil (rpm)	900

Weight

Weight (kg)	59.874

Mounting dimensions (fillets / shoulders)

Chamfer r (in)	0.157
Shaft shoulder da min (in)	12.598
Housing shoulder Da (in)	10.827

Bearing life (ISO 281 basic rating life)

C / P	Equivalent load P (N)	L₁₀ (10⁶ rev)	L_10h at 300 rpm
4	528,226	102	5,644
6	352,151	392	21,805
8	264,113	1,024	56,889
10	211,291	2,154	119,691
15	140,860	8,323	462,415

Basic rating life per ISO 281: L₁₀ = (C/P)^10/3 with C = 2,112,905 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.151 (dimensions) / p.152 (ratings)

Dimensions in inches and millimetres, load ratings in lbs.

Nearby bore sizes

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
29338	NSK	Thrust	190	320	78	1370 kN	23
29338E	NSK	Thrust	190	320	78	310,000 lbs	22.906
51138	NSK	Thrust	190	240	37	172 kN	-
51238	NSK	Thrust	190	270	62	320 kN	12.9
51338	NSK	Thrust	190	320	105	550 kN	38.1
52238	NSK	Thrust	190	270	None	320 kN	22.2
52338	NSK	Thrust	190	320	None	550 kN	-

Request a quotation for 29438

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