HR32944NSKTapered Roller

Name: NSK HR32944 Tapered Roller Bearing
Brand: NSK
SKU: HR32944

HR32944 is a NSK tapered roller bearing, bore 220 mm, O.D. 300 mm, width 51 mm, dynamic rating 600 kN. Dimensions, drawing, interchanges and price.

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Bore d220mm

Outside dia. D300mm

Width B51mm

Dynamic Cr600kN

Static C0r990kN

Limiting speed1,000rpm

Weight10.3kg

Cr / C0r0.61

Mean dia. dm260mm

Original catalogue drawing - NSK E1103, page 269

HR32944 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	220	8.6614
D	Outside diameter	300	11.811
B	Inner-ring / bearing width	51	2.0079
T	Overall assembly width	51	2.0079
C	Cup / outer-ring width	39	1.5354
r	Chamfer (min)	2.5	0.0984

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)	220
Outside dia. D (mm)	300
Width B (mm)	51
Overall width T (mm)	51
Cup width C (mm)	39

Load ratings & speeds

Basic dynamic load rating Cr (lbs)	134885
Basic static load rating Cor (lbs)	222561
Basic dynamic load rating Cr (N)	600000
Basic static load rating C0r (N)	990000
Limiting speed - grease (rpm)	1,000
Effective load centre a (mm)	3

Weight

Weight (kg)	10.3

Mounting dimensions (fillets / shoulders)

Housing fillet r max (mm)	2.5

Bearing life (ISO 281 basic rating life)

C / P	Equivalent load P (N)	L₁₀ (10⁶ rev)	L_10h at 300 rpm
4	150,000	102	5,644
6	100,000	392	21,805
8	75,000	1,024	56,889
10	60,000	2,154	119,691
15	40,000	8,323	462,415

Basic rating life per ISO 281: L₁₀ = (C/P)^10/3 with C = 600,000 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 CAT. No. E1103 (metric)
Catalogue page	p.269 (dimensions)

Load ratings in newtons, weights in kg, limiting speeds for grease and oil lubrication.

Interchange - same dimensions, other brands

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
32944	FAG	Tapered Roller	220	300	51	495 kN	10.3
32944	Timken	Tapered Roller	220	300	51	561 kN	9.89
X32944/Y32944	Timken	Tapered Roller	220	300	51	-	-

Same dimensions, same brand

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
HR32944J	NSK	Tapered Roller	220	300	51	110,000 lbs	10.301

Nearby bore sizes

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
30244	NSK	Tapered Roller	220	400	68	182,000 lbs	33.607
30344	NSK	Tapered Roller	220	460	88	321,000 lbs	72.411
32344	NSK	Tapered Roller	220	460	145	454,000 lbs	114.02
HR32044XJ	NSK	Tapered Roller	220	340	76	885,000 lbs	24.403
HR32244J	NSK	Tapered Roller	220	400	108	326,000 lbs	59.407
HR32944J	NSK	Tapered Roller	220	300	51	110,000 lbs	10.301

Request a quotation for HR32944

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