BL319NSKBall

Name: NSK BL319 Ball Bearing
Brand: NSK
SKU: BL319

BL319 is a NSK ball bearing, bore 95 mm, O.D. 200 mm, width 45 mm, dynamic rating 45,000 lbs. Dimensions, drawing, interchanges and price.

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Bore d95mm

Outside dia. D200mm

Width B45mm

Dynamic Cr45,000lbs

Static C0r40,000lbs

Limiting speed3,000rpm

Weight6.387kg

Cr / C0r1.12

Mean dia. dm147.5mm

Original catalogue drawing - NSK catalogue, page 43

BL319 NSK Ball 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
r	Chamfer (min)	2.515	0.099

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

Load ratings & speeds

Basic dynamic load rating Cr (lbs)	45000
Basic static load rating Cor (lbs)	40000
Limiting speed - grease (rpm)	3,000
Limiting speed - oil (rpm)	3,600

Weight

Weight (kg)	6.387

Mounting dimensions (fillets / shoulders)

Chamfer r (in)	0.099
Shaft shoulder da min (in)	4.255
Shaft shoulder da max (in)	4.886
Housing shoulder Da max (in)	7.368

Bearing life (ISO 281 basic rating life)

C / P	Equivalent load P (N)	L₁₀ (10⁶ rev)	L_10h at 1,000 rpm
4	50,042	64	1,067
6	33,362	216	3,600
8	25,021	512	8,533
10	20,017	1,000	16,667
15	13,345	3,375	56,250

Basic rating life per ISO 281: L₁₀ = (C/P)³ with C = 200,170 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.45 (dimensions) / p.46 (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
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
21319CE4	NSK	Spherical Roller	95	200	45	430 kN	6.92

Nearby bore sizes

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
1219	NSK	Ball	95	170	32	70.5 kN	3.12
1319	NSK	Ball	95	200	45	142 kN	6.79
16019	NSK	Ball	95	145	16	47 kN	0.904
6019	NSK	Ball	95	145	24	13,600 lbs	1.211
6219	NSK	Ball	95	170	32	24,500 lbs	2.599
6319	NSK	Ball	95	200	45	34,400 lbs	5.67
6819	NSK	Ball	95	120	13	4,330 lbs	0.286
6919	NSK	Ball	95	130	18	7,590 lbs	0.581

Request a quotation for BL319

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