30319CNSKTapered Roller

Name: NSK 30319C Tapered Roller Bearing
Brand: NSK
SKU: 30319C

30319C is a NSK tapered roller bearing, bore 95 mm, O.D. 200 mm, width 45 mm, dynamic rating 78,700 lbs. Dimensions, drawing, interchanges and price.

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Bore d95mm

Outside dia. D200mm

Width B45mm

Dynamic Cr78,700lbs

Static C0r96,700lbs

Limiting speed1,900rpm

Weight6.804kg

Cr / C0r0.81

Mean dia. dm147.5mm

Original catalogue drawing - NSK catalogue, page 127

30319C 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	95	3.7402
D	Outside diameter	200	7.874
B	Inner-ring / bearing width	45	1.7717
T	Overall assembly width	49.5	1.9488
C	Cup / outer-ring width	36	1.4173

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)	95
Bore d (in)	3.7402
Outside dia. D (mm)	200
Outside dia. D (in)	7.8740
Width B (mm)	45
Width B (in)	1.7717
Overall width T (mm)	49.50
Overall width T (in)	1.9488
Cup width C (mm)	36
Cup width C (in)	1.4173

Load ratings & speeds

Basic dynamic load rating Cr (lbs)	78700
Basic static load rating Cor (lbs)	96700
Limiting speed - grease (rpm)	1,900
Limiting speed - oil (rpm)	2,600

Weight

Weight (kg)	6.804

Mounting dimensions (fillets / shoulders)

Chamfer r (in)	0.157
Shaft shoulder da min (in)	4.570
Housing shoulder Da max (in)	7.323
Shaft shoulder db max (in)	4.685

Bearing life (ISO 281 basic rating life)

C / P	Equivalent load P (N)	L₁₀ (10⁶ rev)	L_10h at 600 rpm
4	87,519	102	2,822
6	58,346	392	10,903
8	43,759	1,024	28,444
10	35,008	2,154	59,845
15	23,338	8,323	231,207

Basic rating life per ISO 281: L₁₀ = (C/P)^10/3 with C = 350,075 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.129 (dimensions) / p.130 (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
1319-K-M-C3	FAG	Ball	95	200	45	134 kN	7.2
1319-M	FAG	Ball	95	200	45	134 kN	7.29
6319	FAG	Ball	95	200	45	154 kN	6.23
6319-2RSR	FAG	Ball	95	200	45	154 kN	6.317
6319-2Z	FAG	Ball	95	200	45	154 kN	6.2
QJ319-N2-MPA	FAG	Ball	95	200	45	285 kN	7.45
N319-E-M1	FAG	Cylindrical Roller	95	200	45	390 kN	7.05
N319-E-XL-M1	FAG	Cylindrical Roller	95	200	45	390 kN	7.12
NJ319-E-TVP2	FAG	Cylindrical Roller	95	200	45	390 kN	6.44
NJ319-E-XL-TVP2	FAG	Cylindrical Roller	95	200	45	390 kN	6.44

Same dimensions, same brand

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
1319	NSK	Ball	95	200	45	142 kN	6.79
6319	NSK	Ball	95	200	45	34,400 lbs	5.67
7319B	NSK	Ball	95	200	45	35,500 lbs	6.759
BL319	NSK	Ball	95	200	45	45,000 lbs	6.387
319	NSK	Cylindrical Roller	95	200	45	58,100 lbs	6.35
NU319	NSK	Cylindrical Roller	95	200	45	320 kN	6.23
NU319E	NSK	Cylindrical Roller	95	200	45	410 kN	7.13
21319CAME4	NSK	Spherical Roller	95	200	45	430 kN	6.92

Nearby bore sizes

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
HR30219	NSK	Tapered Roller	95	170	32	275 kN	3.13
HR30219J	NSK	Tapered Roller	95	170	32	50,100 lbs	3.13
HR30319	NSK	Tapered Roller	95	200	45	380 kN	6.64
HR30319J	NSK	Tapered Roller	95	200	45	83,200 lbs	6.917
HR31319J	NSK	Tapered Roller	95	200	45	69,700 lbs	6.636
HR32019XJ	NSK	Tapered Roller	95	145	32	173,000 lbs	1.882
HR32219	NSK	Tapered Roller	95	170	43	355 kN	4.22
HR32219J	NSK	Tapered Roller	95	170	43	65,000 lbs	4.218

Request a quotation for 30319C

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