6930NSKBall

Name: NSK 6930 Ball Bearing
Brand: NSK
SKU: 6930

6930 is a NSK ball bearing, bore 150 mm, O.D. 210 mm, width 28 mm, dynamic rating 19,000 lbs. Dimensions, drawing, interchanges and price.

Request a quote WhatsApp Email us Search the catalog

Bore d150mm

Outside dia. D210mm

Width B28mm

Dynamic Cr19,000lbs

Static C0r20,200lbs

Limiting speed2,600rpm

Weight2.976kg

Cr / C0r0.94

Mean dia. dm180mm

Original catalogue drawing - NSK catalogue, page 23

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	150	5.9055
D	Outside diameter	210	8.2677
B	Inner-ring / bearing width	28	1.1024
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)	150
Bore d (in)	5.9055
Outside dia. D (mm)	210
Outside dia. D (in)	8.2677
Width B (mm)	28
Width B (in)	1.1024

Load ratings & speeds

Basic dynamic load rating Cr (lbs)	19000
Basic static load rating Cor (lbs)	20200
Limiting speed - grease (rpm)	2,600
Limiting speed - oil (rpm)	3,200
Factor f0	16.5

Weight

Weight (kg)	2.976

Mounting dimensions (fillets / shoulders)

Chamfer r (in)	0.079
Shaft shoulder da min (in)	6.260
Shaft shoulder da max (in)	6.535
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 800 rpm
4	21,129	64	1,333
6	14,086	216	4,500
8	10,565	512	10,667
10	8,452	1,000	20,833
15	5,634	3,375	70,312

Basic rating life per ISO 281: L₁₀ = (C/P)³ with C = 84,516 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.25 (dimensions) / p.26 (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
B71930-C-T-P4S	FAG	Precision / Angular Contact	150	210	28	122 kN	2.49
B71930-E-T-P4S	FAG	Precision / Angular Contact	150	210	28	114 kN	2.49

Same dimensions, same brand

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
7930A5	NSK	Precision / Angular Contact	150	210	28	21,700 lbs	2.971
7930C	NSK	Precision / Angular Contact	150	210	28	22,900 lbs	2.966

Nearby bore sizes

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
16030	NSK	Ball	150	225	24	92.5 kN	3.62
6030	NSK	Ball	150	225	35	28,200 lbs	4.808
6230	NSK	Ball	150	270	45	39,600 lbs	11.476
6330	NSK	Ball	150	320	65	61,700 lbs	25.991
6830	NSK	Ball	150	190	20	10,700 lbs	1.129
7230B	NSK	Ball	150	270	45	50,500 lbs	10.977
7330B	NSK	Ball	150	320	65	64,800 lbs	25.31

Request a quotation for 6930

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