342/332NSKTapered Roller

Name: NSK 342/332 Tapered Roller Bearing
Brand: NSK
SKU: 342/332

342/332 is a NSK tapered roller bearing, bore 41.27 mm, O.D. 80 mm, width 29.97 mm. Dimensions, drawing, interchanges and price.

Cone + cup assembly

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Bore d41.27mm

Outside dia. D80mm

Width B29.97mm

Dynamic Cr15,300lbs

Static C0r12,100lbs

Weight0.562kg

Cr / C0r1.26

Mean dia. dm60.6mm

Original catalogue drawing - NSK catalogue, page 135

342/332 NSK Tapered Roller 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	41.275	1.625
D	Outside diameter	80	3.1496
B	Inner-ring / bearing width	29.975	1.1801
T	Overall assembly width	28.575	1.125
C	Cup / outer-ring width	17.826	0.7018
r	Chamfer (min)	3.556	0.14

Notes

Tapered roller bearings are cone / cup assemblies; cone and cup weights are listed separately and the total is their sum. 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)	41.275
Bore d (in)	1.6250
Outside dia. D (mm)	80.000
Outside dia. D (in)	3.1496
Width B (in)	1.1801
Overall width T (mm)	28.575
Overall width T (in)	1.1250
Cup width C (in)	0.7018

Load ratings & speeds

Basic dynamic load rating Cr (lbs)	15300
Basic static load rating Cor (lbs)	12100
Effective centre a (in)	0.58

Weight

Cone weight (kg)	0.417
Cup weight (kg)	0.145
Total weight (kg)	0.562

Mounting dimensions (fillets / shoulders)

Chamfer r (in)	0.14
Chamfer r1 (in)	0.05
Shaft shoulder da min (in)	2.87
Shaft shoulder da (in)	1.81
Housing shoulder Da (in)	2.95

Bearing life (ISO 281 basic rating life)

C / P	Equivalent load P (N)	L₁₀ (10⁶ rev)	L_10h at 500 rpm
4	17,014	102	3,386
6	11,343	392	13,083
8	8,507	1,024	34,133
10	6,806	2,154	71,814
15	4,537	8,323	277,449

Basic rating life per ISO 281: L₁₀ = (C/P)^10/3 with C = 68,058 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.137 (dimensions) / p.138 (ratings)

Dimensions in inches and millimetres, load ratings in lbs.

Nearby bore sizes

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
18590/18520	NSK	Tapered Roller	41.27	73.03	17.46	10,000 lbs	0.29
26882/26822	NSK	Tapered Roller	41.27	79.38	25.4	16,200 lbs	0.526
LM501349/LM501310	NSK	Tapered Roller	41.27	73.43	19.81	12,200 lbs	0.327
LM501349/LM501314	NSK	Tapered Roller	41.27	73.43	19.81	12,200 lbs	0.345
HR30208	NSK	Tapered Roller	40	80	18	78 kN	0.437
HR30208C	NSK	Tapered Roller	40	80	18	24,100 lbs	0.424
HR30208J	NSK	Tapered Roller	40	80	18	14,300 lbs	0.44
HR30308	NSK	Tapered Roller	40	90	23	111 kN	0.758

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