HR322/22CNSKTapered Roller

Name: NSK HR322/22C Tapered Roller Bearing
Brand: NSK
SKU: HR322/22C

HR322/22C is a NSK tapered roller bearing, bore 22 mm, O.D. 50 mm, width 18 mm, dynamic rating 7,530 lbs. Dimensions, drawing, interchanges and price.

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Bore d22mm

Outside dia. D50mm

Width B18mm

Dynamic Cr7,530lbs

Static C0r8,880lbs

Limiting speed7,500rpm

Weight0.177kg

Cr / C0r0.85

Mean dia. dm36mm

Original catalogue drawing - NSK catalogue, page 129

HR322/22C 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	22	0.8661
D	Outside diameter	50	1.9685
B	Inner-ring / bearing width	18	0.7087
T	Overall assembly width	19.25	0.7579
C	Cup / outer-ring width	15	0.5906

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)	22
Bore d (in)	0.8661
Outside dia. D (mm)	50
Outside dia. D (in)	1.9685
Width B (mm)	18
Width B (in)	0.7087
Overall width T (mm)	19.25
Overall width T (in)	0.7579
Cup width C (mm)	15
Cup width C (in)	0.5906

Load ratings & speeds

Basic dynamic load rating Cr (lbs)	7530
Basic static load rating Cor (lbs)	8880
Limiting speed - grease (rpm)	7,500
Limiting speed - oil (rpm)	10,000

Weight

Weight (kg)	0.177

Mounting dimensions (fillets / shoulders)

Chamfer r (in)	0.039
Shaft shoulder da min (in)	1.221
Housing shoulder Da max (in)	1.734
Shaft shoulder db max (in)	1.143

Bearing life (ISO 281 basic rating life)

C / P	Equivalent load P (N)	L₁₀ (10⁶ rev)	L_10h at 2,500 rpm
4	8,374	102	677
6	5,583	392	2,617
8	4,187	1,024	6,827
10	3,350	2,154	14,363
15	2,233	8,323	55,490

Basic rating life per ISO 281: L₁₀ = (C/P)^10/3 with C = 33,495 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.131 (dimensions) / p.132 (ratings)

Dimensions in inches and millimetres, load ratings in lbs.

Same dimensions, same brand

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
HR322/22	NSK	Tapered Roller	22	50	18	8,210 lbs	0.181

Series variants (different suffix)

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
HR322/22	NSK	Tapered Roller	22	50	18	8,210 lbs	0.181
HR322/28	NSK	Tapered Roller	28	58	19	10,700 lbs	0.245
HR322/28C	NSK	Tapered Roller	28	58	19	9,440 lbs	0.24
HR322/32	NSK	Tapered Roller	32	75	20	12,600 lbs	0.336
HR322/32C	NSK	Tapered Roller	32	65	21	11,100 lbs	0.331

Nearby bore sizes

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
HR302/22C	NSK	Tapered Roller	22	50	14	6,110 lbs	0.138
HR303/22	NSK	Tapered Roller	22	56	16	8,320 lbs	0.209
HR303/22C	NSK	Tapered Roller	22	56	16	7,760 lbs	0.2
HR320/22XJ	NSK	Tapered Roller	22	44	15	25,600 lbs	0.104
LM12749/LM12710	NSK	Tapered Roller	22	45.24	16.64	6,570 lbs	0.113
LM12749/LM12711	NSK	Tapered Roller	22	46	16.64	6,570 lbs	0.118
07087/07196	NSK	Tapered Roller	22.23	50.01	14.26	10,000 lbs	0.127
M12649/M12610	NSK	Tapered Roller	21.43	50.01	18.29	8,680 lbs	0.168

Request a quotation for HR322/22C

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