6220NSKBall

Name: NSK 6220 Ball Bearing
Brand: NSK
SKU: 6220

6220 is a NSK ball bearing, bore 100 mm, O.D. 180 mm, width 34 mm, dynamic rating 27,500 lbs. Dimensions, drawing, interchanges and price.

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Bore d100mm

Outside dia. D180mm

Width B34mm

Dynamic Cr27,500lbs

Static C0r20,900lbs

Limiting speed3,600rpm

Weight3.148kg

Cr / C0r1.32

Mean dia. dm140mm

Original catalogue drawing - NSK catalogue, page 17

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	100	3.937
D	Outside diameter	180	7.0866
B	Inner-ring / bearing width	34	1.3386
r	Chamfer (min)	2.007	0.079

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)	100
Bore d (in)	3.9370
Outside dia. D (mm)	180
Outside dia. D (in)	7.0866
Width B (mm)	34
Width B (in)	1.3386

Load ratings & speeds

Basic dynamic load rating Cr (lbs)	27500
Basic static load rating Cor (lbs)	20900
Limiting speed - grease (rpm)	3,600
Limiting speed - oil (rpm)	4,300
Factor f0	14.4

Weight

Weight (kg)	3.148

Mounting dimensions (fillets / shoulders)

Chamfer r (in)	0.079
Shaft shoulder da min (in)	4.409
Shaft shoulder da max (in)	4.787
Housing shoulder Da max (in)	6.614

Bearing life (ISO 281 basic rating life)

C / P	Equivalent load P (N)	L₁₀ (10⁶ rev)	L_10h at 1,200 rpm
4	30,582	64	889
6	20,388	216	3,000
8	15,291	512	7,111
10	12,233	1,000	13,889
15	8,155	3,375	46,875

Basic rating life per ISO 281: L₁₀ = (C/P)³ with C = 122,326 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.19 (dimensions) / p.20 (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
1220-K-M-C3	FAG	Ball	100	180	34	70 kN	3.94
1220-M	FAG	Ball	100	180	34	70 kN	3.99
6220	FAG	Ball	100	180	34	130 kN	3.3
6220-2RSR	FAG	Ball	100	180	34	130 kN	3.3
6220-2Z	FAG	Ball	100	180	34	130 kN	3.36
QJ220-N2-MPA	FAG	Ball	100	180	34	224 kN	4.02
N220-E-TVP2	FAG	Cylindrical Roller	100	180	34	295 kN	3.5
N220-E-XL-TVP2	FAG	Cylindrical Roller	100	180	34	295 kN	3.5
NJ220-E-TVP2	FAG	Cylindrical Roller	100	180	34	295 kN	3.55
NJ220-E-XL-TVP2	FAG	Cylindrical Roller	100	180	34	295 kN	3.55

Same dimensions, same brand

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
1220	NSK	Ball	100	180	34	76.5 kN	3.74
7220B	NSK	Ball	100	180	34	28,000 lbs	3.697
BL220	NSK	Ball	100	180	34	36,000 lbs	3.484
220	NSK	Cylindrical Roller	100	180	34	40,900 lbs	3.402
NU220E	NSK	Cylindrical Roller	100	180	34	305 kN	3.81
HR30220	NSK	Tapered Roller	100	180	34	315 kN	3.78
HR30220J	NSK	Tapered Roller	100	180	34	57,300 lbs	3.778
7220	NSK	Precision / Angular Contact	100	180	34	158 kN	3.22

Nearby bore sizes

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
1220	NSK	Ball	100	180	34	76.5 kN	3.74
1320	NSK	Ball	100	215	47	155 kN	8.4
16020	NSK	Ball	100	150	16	46.5 kN	0.945
6020	NSK	Ball	100	150	24	13,500 lbs	1.252
6320	NSK	Ball	100	215	47	38,900 lbs	6.94
6820	NSK	Ball	100	125	13	4,400 lbs	0.299
6920	NSK	Ball	100	140	20	9,570 lbs	0.807
7220B	NSK	Ball	100	180	34	28,000 lbs	3.697

Request a quotation for 6220

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