6920NSKBall

Name: NSK 6920 Ball Bearing
Brand: NSK
SKU: 6920

6920 is a NSK ball bearing, bore 100 mm, O.D. 140 mm, width 20 mm, dynamic rating 9,570 lbs. Dimensions, drawing, interchanges and price.

Request a quote WhatsApp Email us Search the catalog

Bore d100mm

Outside dia. D140mm

Width B20mm

Dynamic Cr9,570lbs

Static C0r9,350lbs

Limiting speed4,500rpm

Weight0.807kg

Cr / C0r1.02

Mean dia. dm120mm

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	100	3.937
D	Outside diameter	140	5.5118
B	Inner-ring / bearing width	20	0.7874
r	Chamfer (min)	0.991	0.039

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)	140
Outside dia. D (in)	5.5118
Width B (mm)	20
Width B (in)	0.7874

Load ratings & speeds

Basic dynamic load rating Cr (lbs)	9570
Basic static load rating Cor (lbs)	9350
Limiting speed - grease (rpm)	4,500
Limiting speed - oil (rpm)	5,300
Factor f0	16.4

Weight

Weight (kg)	0.807

Mounting dimensions (fillets / shoulders)

Chamfer r (in)	0.039
Shaft shoulder da min (in)	4.193
Shaft shoulder da max (in)	4.370
Housing shoulder Da max (in)	5.256

Bearing life (ISO 281 basic rating life)

C / P	Equivalent load P (N)	L₁₀ (10⁶ rev)	L_10h at 1,500 rpm
4	10,642	64	711
6	7,095	216	2,400
8	5,321	512	5,689
10	4,257	1,000	11,111
15	2,838	3,375	37,500

Basic rating life per ISO 281: L₁₀ = (C/P)³ with C = 42,569 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
B71920-C-T-P4S	FAG	Precision / Angular Contact	100	140	20	58.5 kN	0.784
B71920-E-T-P4S	FAG	Precision / Angular Contact	100	140	20	55 kN	0.781
HCB71920-C-T-P4S	FAG	Precision / Angular Contact	100	140	20	40.5 kN	0.79
HCB71920-E-T-P4S	FAG	Precision / Angular Contact	100	140	20	38 kN	0.79
HCS71920-C-T-P4S	FAG	Precision / Angular Contact	100	140	20	20.4 kN	0.818
HCS71920-E-T-P4S	FAG	Precision / Angular Contact	100	140	20	19 kN	0.816
HSS71920-C-T-P4S	FAG	Precision / Angular Contact	100	140	20	29 kN	0.861
HSS71920-E-T-P4S	FAG	Precision / Angular Contact	100	140	20	27.5 kN	0.859

Same dimensions, same brand

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
7920A5	NSK	Precision / Angular Contact	100	140	20	10,700 lbs	0.794
7920C	NSK	Precision / Angular Contact	100	140	20	11,200 lbs	0.785

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
6320	NSK	Ball	100	215	47	38,900 lbs	6.94
6820	NSK	Ball	100	125	13	4,400 lbs	0.299
7220B	NSK	Ball	100	180	34	28,000 lbs	3.697

Request a quotation for 6920

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