6320NSKBall

Name: NSK 6320 Ball Bearing
Brand: NSK
SKU: 6320

6320 is a NSK ball bearing, bore 100 mm, O.D. 215 mm, width 47 mm, dynamic rating 38,900 lbs. Dimensions, drawing, interchanges and price.

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Bore d100mm

Outside dia. D215mm

Width B47mm

Dynamic Cr38,900lbs

Static C0r31,800lbs

Limiting speed2,800rpm

Weight6.94kg

Cr / C0r1.22

Mean dia. dm157.5mm

Original catalogue drawing - NSK catalogue, page 19

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	215	8.4646
B	Inner-ring / bearing width	47	1.8504
r	Chamfer (min)	2.489	0.098

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)	215
Outside dia. D (in)	8.4646
Width B (mm)	47
Width B (in)	1.8504

Load ratings & speeds

Basic dynamic load rating Cr (lbs)	38900
Basic static load rating Cor (lbs)	31800
Limiting speed - grease (rpm)	2,800
Limiting speed - oil (rpm)	3,400
Factor f0	13.2

Weight

Weight (kg)	6.94

Mounting dimensions (fillets / shoulders)

Chamfer r (in)	0.098
Shaft shoulder da min (in)	4.488
Shaft shoulder da max (in)	5.240
Housing shoulder Da max (in)	7.913

Bearing life (ISO 281 basic rating life)

C / P	Equivalent load P (N)	L₁₀ (10⁶ rev)	L_10h at 900 rpm
4	43,259	64	1,185
6	28,839	216	4,000
8	21,629	512	9,481
10	17,304	1,000	18,519
15	11,536	3,375	62,500

Basic rating life per ISO 281: L₁₀ = (C/P)³ with C = 173,036 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.21 (dimensions) / p.22 (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
1320-K-M-C3	FAG	Ball	100	215	47	145 kN	8.95
1320-M	FAG	Ball	100	215	47	145 kN	9.06
6320	FAG	Ball	100	215	47	177 kN	7.67
6320-2RSR	FAG	Ball	100	215	47	177 kN	7.78
6320-2Z	FAG	Ball	100	215	47	177 kN	7.78
QJ320-N2-MPA	FAG	Ball	100	215	47	325 kN	9.04
N320-E-M1	FAG	Cylindrical Roller	100	215	47	450 kN	8.75
N320-E-XL-M1	FAG	Cylindrical Roller	100	215	47	450 kN	8.75
NJ320-E-TVP2	FAG	Cylindrical Roller	100	215	47	450 kN	7.82
NJ320-E-XL-TVP2	FAG	Cylindrical Roller	100	215	47	450 kN	7.82

Same dimensions, same brand

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
1320	NSK	Ball	100	215	47	155 kN	8.4
7320B	NSK	Ball	100	215	47	42,800 lbs	8.301
320	NSK	Cylindrical Roller	100	215	47	67,100 lbs	7.711
NU320	NSK	Cylindrical Roller	100	215	47	365 kN	7.69
NU320E	NSK	Cylindrical Roller	100	215	47	465 kN	8.63
21320CAME4	NSK	Spherical Roller	100	215	47	495 kN	8.46
21320CE4	NSK	Spherical Roller	100	215	47	495 kN	8.46
HR30320	NSK	Tapered Roller	100	215	47	520 kN	8.41

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
6220	NSK	Ball	100	180	34	27,500 lbs	3.148
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 6320

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