BL317NSKBall

Name: NSK BL317 Ball Bearing
Brand: NSK
SKU: BL317

BL317 is a NSK ball bearing, bore 85 mm, O.D. 180 mm, width 41 mm, dynamic rating 39,100 lbs. Dimensions, drawing, interchanges and price.

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Bore d85mm

Outside dia. D180mm

Width B41mm

Dynamic Cr39,100lbs

Static C0r32,600lbs

Limiting speed3,800rpm

Weight4.699kg

Cr / C0r1.2

Mean dia. dm132.5mm

Original catalogue drawing - NSK catalogue, page 43

BL317 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	85	3.3465
D	Outside diameter	180	7.0866
B	Inner-ring / bearing width	41	1.6142
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)	85
Bore d (in)	3.3465
Outside dia. D (mm)	180
Outside dia. D (in)	7.0866
Width B (mm)	41
Width B (in)	1.6142

Load ratings & speeds

Basic dynamic load rating Cr (lbs)	39100
Basic static load rating Cor (lbs)	32600
Limiting speed - grease (rpm)	3,800
Limiting speed - oil (rpm)	4,500

Weight

Weight (kg)	4.699

Mounting dimensions (fillets / shoulders)

Chamfer r (in)	0.099
Shaft shoulder da min (in)	3.861
Shaft shoulder da max (in)	4.354
Housing shoulder Da max (in)	6.580

Bearing life (ISO 281 basic rating life)

C / P	Equivalent load P (N)	L₁₀ (10⁶ rev)	L_10h at 1,200 rpm
4	43,481	64	889
6	28,988	216	3,000
8	21,741	512	7,111
10	17,393	1,000	13,889
15	11,595	3,375	46,875

Basic rating life per ISO 281: L₁₀ = (C/P)³ with C = 173,925 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
1317-K-M-C3	FAG	Ball	85	180	41	99 kN	5.32
1317-M	FAG	Ball	85	180	41	99 kN	5.39
6317	FAG	Ball	85	180	41	141 kN	4.25
6317-2RSR	FAG	Ball	85	180	41	141 kN	4.25
6317-2Z	FAG	Ball	85	180	41	141 kN	4.33
QJ317-N2-MPA	FAG	Ball	85	180	41	245 kN	5.54
N317-E-M1	FAG	Cylindrical Roller	85	180	41	340 kN	5.3
N317-E-XL-M1	FAG	Cylindrical Roller	85	180	41	340 kN	5.3
NJ317-E-TVP2	FAG	Cylindrical Roller	85	180	41	320 kN	4.71
NJ317-E-XL-TVP2	FAG	Cylindrical Roller	85	180	41	320 kN	4.71

Same dimensions, same brand

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
1317	NSK	Ball	85	180	41	108 kN	5.03
6317	NSK	Ball	85	180	41	29,800 lbs	4.25
7317B	NSK	Ball	85	180	41	30,900 lbs	5.035
317	NSK	Cylindrical Roller	85	180	41	47,500 lbs	4.536
NU317	NSK	Cylindrical Roller	85	180	41	261 kN	4.6
NU317E	NSK	Cylindrical Roller	85	180	41	360 kN	5.26
21317EAE4	NSK	Spherical Roller	85	180	41	360 kN	5.2
HR30317	NSK	Tapered Roller	85	180	41	380 kN	5.08

Nearby bore sizes

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
1217	NSK	Ball	85	150	28	54.5 kN	2.1
1317	NSK	Ball	85	180	41	108 kN	5.03
16017	NSK	Ball	85	130	14	36 kN	0.652
5217J	NSK	Ball	85	150	49.2	26,000 lbs	3.402
6017	NSK	Ball	85	130	22	11,100 lbs	0.889
6217	NSK	Ball	85	150	28	18,900 lbs	1.801
6317	NSK	Ball	85	180	41	29,800 lbs	4.25
6817	NSK	Ball	85	110	13	4,200 lbs	0.254

Request a quotation for BL317

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