63309DDUNSKBall

Name: NSK 63309DDU Ball Bearing
Brand: NSK
SKU: 63309DDU

63309DDU is a NSK ball bearing, bore 45 mm, O.D. 100 mm, width 39.69 mm, dynamic rating 11,910 lbs. Dimensions, drawing, interchanges and price.

Sealed both sides

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Bore d45mm

Outside dia. D100mm

Width B39.69mm

Dynamic Cr11,910lbs

Static C0r7,210lbs

Weight1.361kg

Cr / C0r1.65

Mean dia. dm72.5mm

Original catalogue drawing - NSK catalogue, page 27

63309DDU NSK Ball 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	39.688	1.5625
r	Chamfer (min)	1.499	0.059

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
Bore d (in)	1.7717
Outside dia. D (mm)	100
Outside dia. D (in)	3.9370
Width B (in)	1.5625

Load ratings & speeds

Basic dynamic load rating Cr (lbs)	11910
Basic static load rating Cor (lbs)	7210

Weight

Weight (kg)	1.361

Mounting dimensions (fillets / shoulders)

Chamfer r (in)	0.059
Shaft shoulder (in)	2.126
Housing shoulder (in)	3.583

Bearing life (ISO 281 basic rating life)

C / P	Equivalent load P (N)	L₁₀ (10⁶ rev)	L_10h at 500 rpm
4	13,245	64	2,133
6	8,830	216	7,200
8	6,622	512	17,067
10	5,298	1,000	33,333
15	3,532	3,375	112,500

Basic rating life per ISO 281: L₁₀ = (C/P)³ with C = 52,978 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.28 (dimensions) / p.28 (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
3309-B-2RSR-TVH	FAG	Precision / Angular Contact	45	100	39.7	68 kN	1.36
3309-B-TVH	FAG	Precision / Angular Contact	45	100	39.7	68 kN	1.34
3309-BD-XL-2HRS-TVH	FAG	Precision / Angular Contact	45	100	39.7	72 kN	1.314
3309-BD-XL-2Z-TVH	FAG	Precision / Angular Contact	45	100	39.7	72 kN	1.315
3309-BD-XL-TVH	FAG	Precision / Angular Contact	45	100	39.7	72 kN	1.335
3309-DA	FAG	Precision / Angular Contact	45	100	39.7	75 kN	1.55
V527A/520X	Timken	Tapered Roller	44.99	100	39.69	-	1.37

Same dimensions, same brand

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
3309J	NSK	Ball	45	100	39.7	16,000 lbs	1.397
5309J	NSK	Ball	45	100	39.7	15,400 lbs	1.406
5309TNG	NSK	Ball	45	100	39.7	15,300 lbs	1.207
5309	NSK	Precision / Angular Contact	45	100	39.7	75.5 kN	1.37

Nearby bore sizes

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
1209	NSK	Ball	45	85	19	4,950 lbs	0.463
1309	NSK	Ball	45	100	25	8,540 lbs	0.993
16009	NSK	Ball	45	75	10	16.4 kN	0.167
2209	NSK	Ball	45	85	23	6,290 lbs	0.531
2309	NSK	Ball	45	100	36	12,100 lbs	1.32
3209J	NSK	Ball	45	85	30.2	9,890 lbs	0.708
3309J	NSK	Ball	45	100	39.7	16,000 lbs	1.397
5209J	NSK	Ball	45	85	30.2	11,100 lbs	0.621

Request a quotation for 63309DDU

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