HR30208CNSKTapered Roller

Name: NSK HR30208C Tapered Roller Bearing
Brand: NSK
SKU: HR30208C

HR30208C is a NSK tapered roller bearing, bore 40 mm, O.D. 80 mm, width 18 mm, dynamic rating 24,100 lbs. Dimensions, drawing, interchanges and price.

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Bore d40mm

Outside dia. D80mm

Width B18mm

Dynamic Cr24,100lbs

Static C0r29,000lbs

Limiting speed4,500rpm

Weight0.424kg

Cr / C0r0.83

Mean dia. dm60mm

Original catalogue drawing - NSK catalogue, page 125

HR30208C 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	40	1.5748
D	Outside diameter	80	3.1496
B	Inner-ring / bearing width	18	0.7087
T	Overall assembly width	19.75	0.7776
C	Cup / outer-ring width	14	0.5512

Notes

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)	40
Bore d (in)	1.5748
Outside dia. D (mm)	80
Outside dia. D (in)	3.1496
Width B (mm)	18
Width B (in)	0.7087
Overall width T (mm)	19.75
Overall width T (in)	0.7776
Cup width C (mm)	14
Cup width C (in)	0.5512

Load ratings & speeds

Basic dynamic load rating Cr (lbs)	24100
Basic static load rating Cor (lbs)	29000
Limiting speed - grease (rpm)	4,500
Limiting speed - oil (rpm)	6,000

Weight

Weight (kg)	0.424

Mounting dimensions (fillets / shoulders)

Chamfer r (in)	0.059
Shaft shoulder da min (in)	2.009
Housing shoulder Da max (in)	2.797
Shaft shoulder db max (in)	1.931

Bearing life (ISO 281 basic rating life)

C / P	Equivalent load P (N)	L₁₀ (10⁶ rev)	L_10h at 1,500 rpm
4	26,801	102	1,129
6	17,867	392	4,361
8	13,400	1,024	11,378
10	10,720	2,154	23,938
15	7,147	8,323	92,483

Basic rating life per ISO 281: L₁₀ = (C/P)^10/3 with C = 107,202 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.127 (dimensions) / p.128 (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
11208-TVH	FAG	Ball	40	80	18	19.4 kN	0.722
1208-K-TVH-C3	FAG	Ball	40	80	18	19.4 kN	0.408
1208-TVH	FAG	Ball	40	80	18	19.4 kN	0.414
6208	FAG	Ball	40	80	18	29 kN	0.372
6208-2RSR	FAG	Ball	40	80	18	29 kN	0.384
6208-2Z	FAG	Ball	40	80	18	29 kN	0.382
6208-C	FAG	Ball	40	80	18	31.5 kN	0.345
6208-C-2BRS	FAG	Ball	40	80	18	31.5 kN	0.359
6208-C-2HRS	FAG	Ball	40	80	18	31.5 kN	0.359
6208-C-2Z	FAG	Ball	40	80	18	31.5 kN	0.359

Same dimensions, same brand

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
1208	NSK	Ball	40	80	18	4,340 lbs	0.417
6208	NSK	Ball	40	80	18	6,550 lbs	0.372
7208B	NSK	Ball	40	80	18	6,830 lbs	0.381
BL208	NSK	Ball	40	80	18	9,380 lbs	0.395
208	NSK	Cylindrical Roller	40	80	18	9,790 lbs	0.386
NU208E	NSK	Cylindrical Roller	40	80	18	68.5 kN	0.379
HR30208	NSK	Tapered Roller	40	80	18	78 kN	0.437
HR30208J	NSK	Tapered Roller	40	80	18	14,300 lbs	0.44

Nearby bore sizes

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
HR30208	NSK	Tapered Roller	40	80	18	78 kN	0.437
HR30208J	NSK	Tapered Roller	40	80	18	14,300 lbs	0.44
HR30308	NSK	Tapered Roller	40	90	23	111 kN	0.758
HR30308C	NSK	Tapered Roller	40	90	23	19,000 lbs	0.717
HR30308J	NSK	Tapered Roller	40	90	23	20,300 lbs	0.757
HR31308	NSK	Tapered Roller	40	90	23	98 kN	0.728
HR31308J	NSK	Tapered Roller	40	90	23	18,000 lbs	0.73
HR32008	NSK	Tapered Roller	40	68	19	65 kN	0.28

Request a quotation for HR30208C

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