HR30211NSKTapered Roller

Name: NSK HR30211 Tapered Roller Bearing
Brand: NSK
SKU: HR30211

HR30211 is a NSK tapered roller bearing, bore 55 mm, O.D. 100 mm, width 21 mm, dynamic rating 116 kN. Dimensions, drawing, interchanges and price.

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Bore d55mm

Outside dia. D100mm

Width B21mm

Dynamic Cr116kN

Static C0r113kN

Limiting speed3,600rpm

Weight0.736kg

Cr / C0r1.03

Mean dia. dm77.5mm

Original catalogue drawing - NSK E1103, page 264

HR30211 NSK Tapered Roller bearing catalogue drawing

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
T	Overall assembly width	22.75	0.8957
C	Cup / outer-ring width	18	0.7087
r	Chamfer (min)	1.5	0.0591

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
Outside dia. D (mm)	100
Width B (mm)	21
Overall width T (mm)	22.75
Cup width C (mm)	18

Load ratings & speeds

Basic dynamic load rating Cr (lbs)	26078
Basic static load rating Cor (lbs)	25403
Basic dynamic load rating Cr (N)	116000
Basic static load rating C0r (N)	113000
Limiting speed - grease (rpm)	3,600
Effective load centre a (mm)	2

Weight

Weight (kg)	0.736

Mounting dimensions (fillets / shoulders)

Housing fillet r max (mm)	1.5

Bearing life (ISO 281 basic rating life)

C / P	Equivalent load P (N)	L₁₀ (10⁶ rev)	L_10h at 1,200 rpm
4	29,000	102	1,411
6	19,333	392	5,451
8	14,500	1,024	14,222
10	11,600	2,154	29,923
15	7,733	8,323	115,604

Basic rating life per ISO 281: L₁₀ = (C/P)^10/3 with C = 116,000 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 CAT. No. E1103 (metric)
Catalogue page	p.264 (dimensions)

Load ratings in newtons, weights in kg, limiting speeds for grease and oil lubrication.

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
6211	NSK	Ball	55	100	21	9,760 lbs	0.617
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
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
HR30211J	NSK	Tapered Roller	55	100	21	21,200 lbs	0.735
HR30311	NSK	Tapered Roller	55	120	29	184 kN	1.63
HR30311J	NSK	Tapered Roller	55	120	29	33,700 lbs	1.628
HR31311	NSK	Tapered Roller	55	120	29	161 kN	1.58
HR31311J	NSK	Tapered Roller	55	120	29	29,400 lbs	1.579
HR32011	NSK	Tapered Roller	55	90	23	100 kN	0.568
HR32011XJ	NSK	Tapered Roller	55	90	23	81,500 lbs	0.567
HR32211J	NSK	Tapered Roller	55	100	25	24,700 lbs	0.862

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