63308DDUNSKBall

Name: NSK 63308DDU Ball Bearing
Brand: NSK
SKU: 63308DDU

63308DDU is a NSK ball bearing, bore 40 mm, O.D. 90 mm, width 36.51 mm, dynamic rating 9,160 lbs. Dimensions, drawing, interchanges and price.

Sealed both sides

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Bore d40mm

Outside dia. D90mm

Width B36.51mm

Dynamic Cr9,160lbs

Static C0r5,400lbs

Weight0.934kg

Cr / C0r1.7

Mean dia. dm65mm

Original catalogue drawing - NSK catalogue, page 27

63308DDU 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	40	1.5748
D	Outside diameter	90	3.5433
B	Inner-ring / bearing width	36.512	1.4375
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)	40
Bore d (in)	1.5748
Outside dia. D (mm)	90
Outside dia. D (in)	3.5433
Width B (in)	1.4375

Load ratings & speeds

Basic dynamic load rating Cr (lbs)	9160
Basic static load rating Cor (lbs)	5400

Weight

Weight (kg)	0.934

Mounting dimensions (fillets / shoulders)

Chamfer r (in)	0.059
Shaft shoulder (in)	1.929
Housing shoulder (in)	3.189

Bearing life (ISO 281 basic rating life)

C / P	Equivalent load P (N)	L₁₀ (10⁶ rev)	L_10h at 500 rpm
4	10,186	64	2,133
6	6,791	216	7,200
8	5,093	512	17,067
10	4,075	1,000	33,333
15	2,716	3,375	112,500

Basic rating life per ISO 281: L₁₀ = (C/P)³ with C = 40,746 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
3308-B-2RSR-TVH	FAG	Precision / Angular Contact	40	90	36.5	62 kN	0.998
3308-B-2Z-TVH	FAG	Precision / Angular Contact	40	90	36.5	62 kN	0.998
3308-B-TVH	FAG	Precision / Angular Contact	40	90	36.5	62 kN	0.984
3308-BD-XL-2HRS-TVH	FAG	Precision / Angular Contact	40	90	36.5	67 kN	0.985
3308-BD-XL-2Z-TVH	FAG	Precision / Angular Contact	40	90	36.5	67 kN	0.967
3308-BD-XL-TVH	FAG	Precision / Angular Contact	40	90	36.5	67 kN	0.969
3308-DA-MA	FAG	Precision / Angular Contact	40	90	36.5	62 kN	1.19

Same dimensions, same brand

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
3308J	NSK	Ball	40	90	36.5	13,100 lbs	1.066
5308J	NSK	Ball	40	90	36.5	12,700 lbs	1.043
5308TNG	NSK	Ball	40	90	36.5	13,900 lbs	0.903
5308	NSK	Precision / Angular Contact	40	90	36.5	62.5 kN	1.03
5308AZZ	NSK	Precision / Angular Contact	40	90	36.5	54.5 kN	1.05

Nearby bore sizes

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
1208	NSK	Ball	40	80	18	4,340 lbs	0.417
1308	NSK	Ball	40	90	23	6,520 lbs	0.744
16008	NSK	Ball	40	68	9	13.9 kN	0.13
2208	NSK	Ball	40	80	23	7,080 lbs	0.49
2308	NSK	Ball	40	90	33	10,100 lbs	0.998
3208J	NSK	Ball	40	80	30.2	9,290 lbs	0.653
3308J	NSK	Ball	40	90	36.5	13,100 lbs	1.066
5208J	NSK	Ball	40	80	30.2	9,930 lbs	0.572

Request a quotation for 63308DDU

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