21308EAE4NSKSpherical Roller

Name: NSK 21308EAE4 Spherical Roller Bearing
Brand: NSK
SKU: 21308EAE4

21308EAE4 is a NSK spherical roller bearing, bore 40 mm, O.D. 90 mm, width 23 mm, dynamic rating 118 kN. Dimensions, drawing, interchanges and price.

Request a quote WhatsApp Email us Search the catalog

Bore d40mm

Outside dia. D90mm

Width B23mm

Dynamic Cr118kN

Static C0r111kN

Limiting speed6,000rpm

Weight0.73kg

Cr / C0r1.06

Mean dia. dm65mm

Original catalogue drawing - NSK E1103, page 299

21308EAE4 NSK Spherical 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	40	1.5748
D	Outside diameter	90	3.5433
B	Inner-ring / bearing width	23	0.9055
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)	40
Outside dia. D (mm)	90
Width B (mm)	23

Load ratings & speeds

Basic dynamic load rating Cr (lbs)	26527
Basic static load rating Cor (lbs)	24954
Basic dynamic load rating Cr (N)	118000
Basic static load rating C0r (N)	111000
Limiting speed - grease (rpm)	6,000
Limiting speed - oil (rpm)	11,000

Weight

Weight (kg)	0.73

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 2,000 rpm
4	29,500	102	847
6	19,667	392	3,271
8	14,750	1,024	8,533
10	11,800	2,154	17,954
15	7,867	8,323	69,362

Basic rating life per ISO 281: L₁₀ = (C/P)^10/3 with C = 118,000 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.299 (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
1308-K-TVH-C3	FAG	Ball	40	90	23	30 kN	0.698
1308-TVH	FAG	Ball	40	90	23	30 kN	0.708
6308	FAG	Ball	40	90	23	42.5 kN	0.64
6308-2RSR	FAG	Ball	40	90	23	42.5 kN	0.654
6308-2Z	FAG	Ball	40	90	23	42.5 kN	0.654
6308-C	FAG	Ball	40	90	23	47 kN	0.6
6308-C-2BRS	FAG	Ball	40	90	23	47 kN	0.654
6308-C-2HRS	FAG	Ball	40	90	23	47 kN	0.622
6308-C-2Z	FAG	Ball	40	90	23	47 kN	0.617
QJ308-TVP	FAG	Ball	40	90	23	86.5 kN	0.695

Same dimensions, same brand

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
1308	NSK	Ball	40	90	23	6,520 lbs	0.744
6308	NSK	Ball	40	90	23	9,160 lbs	0.635
7308B	NSK	Ball	40	90	23	9,480 lbs	0.658
BL308	NSK	Ball	40	90	23	12,300 lbs	0.667
308	NSK	Cylindrical Roller	40	90	23	13,200 lbs	0.653
NU308E	NSK	Cylindrical Roller	40	90	23	102 kN	0.747
HR30308	NSK	Tapered Roller	40	90	23	111 kN	0.758
HR30308C	NSK	Tapered Roller	40	90	23	19,000 lbs	0.717

Nearby bore sizes

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
22208EAE4	NSK	Spherical Roller	40	80	23	20,281 lbs	0.526
22208HE4	NSK	Spherical Roller	40	80	23	20,200 lbs	0.467
22308CAME4	NSK	Spherical Roller	40	90	33	27,400 lbs	0.984
22308EAE4	NSK	Spherical Roller	40	90	33	30,642 lbs	1.016
22308HE4	NSK	Spherical Roller	40	90	33	30,500 lbs	0.948
22207CE4	NSK	Spherical Roller	35	72	23	15,500 lbs	0.422
22207HE4	NSK	Spherical Roller	35	72	23	17,700 lbs	0.386
21309EAE4	NSK	Spherical Roller	45	100	25	149 kN	0.96

Request a quotation for 21308EAE4

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