HR30309NSKTapered Roller

Name: NSK HR30309 Tapered Roller Bearing
Brand: NSK
SKU: HR30309

HR30309 is a NSK tapered roller bearing, bore 45 mm, O.D. 100 mm, width 25 mm, dynamic rating 138 kN. Dimensions, drawing, interchanges and price.

Request a quote WhatsApp Email us Search the catalog

Bore d45mm

Outside dia. D100mm

Width B25mm

Dynamic Cr138kN

Static C0r127kN

Limiting speed3,800rpm

Weight1.01kg

Cr / C0r1.09

Mean dia. dm72.5mm

Original catalogue drawing - NSK E1103, page 263

HR30309 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	45	1.7717
D	Outside diameter	100	3.937
B	Inner-ring / bearing width	25	0.9843
T	Overall assembly width	27.25	1.0728
C	Cup / outer-ring width	22	0.8661
r	Chamfer (min)	1.5	0.0591

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)	45
Outside dia. D (mm)	100
Width B (mm)	25
Overall width T (mm)	27.25
Cup width C (mm)	22

Load ratings & speeds

Basic dynamic load rating Cr (lbs)	31024
Basic static load rating Cor (lbs)	28551
Basic dynamic load rating Cr (N)	138000
Basic static load rating C0r (N)	127000
Limiting speed - grease (rpm)	3,800
Effective load centre a (mm)	2

Weight

Weight (kg)	1.01

Mounting dimensions (fillets / shoulders)

Housing fillet r max (mm)	1.5

Bearing life (ISO 281 basic rating life)

C / P	Equivalent load P (N)	L₁₀ (10⁶ rev)	L_10h at 1,200 rpm
4	34,500	102	1,411
6	23,000	392	5,451
8	17,250	1,024	14,222
10	13,800	2,154	29,923
15	9,200	8,323	115,604

Basic rating life per ISO 281: L₁₀ = (C/P)^10/3 with C = 138,000 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.263 (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
1309-K-TVH-C3	FAG	Ball	45	100	25	38.5 kN	0.939
1309-TVH	FAG	Ball	45	100	25	38.5 kN	0.953
6309	FAG	Ball	45	100	25	53 kN	0.849
6309-2RSR	FAG	Ball	45	100	25	53 kN	0.867
6309-2Z	FAG	Ball	45	100	25	53 kN	0.869
6309-C	FAG	Ball	45	100	25	58 kN	0.83
6309-C-2BRS	FAG	Ball	45	100	25	58 kN	0.85
6309-C-2HRS	FAG	Ball	45	100	25	58 kN	0.85
6309-C-2Z	FAG	Ball	45	100	25	58 kN	0.84
QJ309-TVP	FAG	Ball	45	100	25	102 kN	0.934

Same dimensions, same brand

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
1309	NSK	Ball	45	100	25	8,540 lbs	0.993
6309	NSK	Ball	45	100	25	11,900 lbs	0.835
7309B	NSK	Ball	45	100	25	12,300 lbs	0.875
BL309	NSK	Ball	45	100	25	14,700 lbs	0.88
309	NSK	Cylindrical Roller	45	100	25	16,600 lbs	0.88
NU309E	NSK	Cylindrical Roller	45	100	25	120 kN	1.01
21309EAE4	NSK	Spherical Roller	45	100	25	149 kN	0.96
HR30309C	NSK	Tapered Roller	45	100	25	23,200 lbs	0.984

Nearby bore sizes

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
HR30209C	NSK	Tapered Roller	45	85	19	14,200 lbs	0.476
HR30209J	NSK	Tapered Roller	45	85	19	15,400 lbs	0.49
HR30210	NSK	Tapered Roller	45	90	20	94 kN	0.557
HR30309C	NSK	Tapered Roller	45	100	25	23,200 lbs	0.984
HR30309J	NSK	Tapered Roller	45	100	25	25,200 lbs	1.012
HR30310	NSK	Tapered Roller	45	110	27	160 kN	1.28
HR31309	NSK	Tapered Roller	45	100	25	118 kN	0.947
HR31309J	NSK	Tapered Roller	45	100	25	21,500 lbs	0.73

Request a quotation for HR30309

Send us the quantity you need and we will come back with price and lead time, normally within 24 hours. Equivalent parts from other brands can be quoted at the same time.

Online enquiry form richard@bearingsfit.com WhatsApp +86 156 2149 6516