6211NSKBall

Name: NSK 6211 Ball Bearing
Brand: NSK
SKU: 6211

6211 is a NSK ball bearing, bore 55 mm, O.D. 100 mm, width 21 mm, dynamic rating 9,760 lbs. Dimensions, drawing, interchanges and price.

Request a quote WhatsApp Email us Search the catalog

Bore d55mm

Outside dia. D100mm

Width B21mm

Dynamic Cr9,760lbs

Static C0r6,580lbs

Limiting speed6,300rpm

Weight0.617kg

Cr / C0r1.48

Mean dia. dm77.5mm

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	55	2.1654
D	Outside diameter	100	3.937
B	Inner-ring / bearing width	21	0.8268
r	Chamfer (min)	1.499	0.059

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)	55
Bore d (in)	2.1654
Outside dia. D (mm)	100
Outside dia. D (in)	3.9370
Width B (mm)	21
Width B (in)	0.8268

Load ratings & speeds

Basic dynamic load rating Cr (lbs)	9760
Basic static load rating Cor (lbs)	6580
Limiting speed - grease (rpm)	6,300
Limiting speed - oil (rpm)	7,500
Factor f0	14.3

Weight

Weight (kg)	0.617

Mounting dimensions (fillets / shoulders)

Chamfer r (in)	0.059
Shaft shoulder da min (in)	2.441
Shaft shoulder da max (in)	2.620
Housing shoulder Da max (in)	3.602

Bearing life (ISO 281 basic rating life)

C / P	Equivalent load P (N)	L₁₀ (10⁶ rev)	L_10h at 2,100 rpm
4	10,854	64	508
6	7,236	216	1,714
8	5,427	512	4,063
10	4,341	1,000	7,937
15	2,894	3,375	26,786

Basic rating life per ISO 281: L₁₀ = (C/P)³ with C = 43,415 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
11211-TVH	FAG	Ball	55	100	21	27 kN	1.13
1211-K-TVH-C3	FAG	Ball	55	100	21	27 kN	0.682
1211-TVH	FAG	Ball	55	100	21	27 kN	0.693
6211	FAG	Ball	55	100	21	46 kN	0.618
6211-2RSR	FAG	Ball	55	100	21	46 kN	0.632
6211-2Z	FAG	Ball	55	100	21	46 kN	0.632
QJ211-TVP	FAG	Ball	55	100	21	80 kN	0.697
QJ211-XL-TVP	FAG	Ball	55	100	21	81 kN	0.697
S6211	FAG	Ball	55	100	21	43 kN	0.617
N211-E-TVP2	FAG	Cylindrical Roller	55	100	21	99 kN	0.668

Same dimensions, same brand

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
1211	NSK	Ball	55	100	21	6,070 lbs	0.694
7211B	NSK	Ball	55	100	21	9,920 lbs	0.635
BL211	NSK	Ball	55	100	21	12,800 lbs	0.662
211	NSK	Cylindrical Roller	55	100	21	13,000 lbs	0.653
NU211E	NSK	Cylindrical Roller	55	100	21	106 kN	0.669
HR30211	NSK	Tapered Roller	55	100	21	116 kN	0.736
HR30211J	NSK	Tapered Roller	55	100	21	21,200 lbs	0.735
7100	NSK	Precision / Angular Contact	55	100	21	78 kN	0.77

Nearby bore sizes

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
1211	NSK	Ball	55	100	21	6,070 lbs	0.694
1311	NSK	Ball	55	120	29	11,500 lbs	1.642
16011	NSK	Ball	55	90	11	21.4 kN	0.257
2211	NSK	Ball	55	100	25	5,960 lbs	0.83
2311	NSK	Ball	55	120	43	16,900 lbs	2.291
3211J	NSK	Ball	55	100	33.3	13,200 lbs	1.048
3311J	NSK	Ball	55	120	49.2	22,000 lbs	2.545
5211J	NSK	Ball	55	100	33.3	12,600 lbs	0.962

Request a quotation for 6211

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