7316BNSKBall

Name: NSK 7316B Ball Bearing
Brand: NSK
SKU: 7316B

7316B is a NSK ball bearing, bore 80 mm, O.D. 170 mm, width 39 mm, dynamic rating 28,700 lbs. Dimensions, drawing, interchanges and price.

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Bore d80mm

Outside dia. D170mm

Width B39mm

Dynamic Cr28,700lbs

Static C0r22,500lbs

Limiting speed3,200rpm

Weight4.25kg

Cr / C0r1.28

Mean dia. dm125mm

Original catalogue drawing - NSK catalogue, page 39

7316B 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	80	3.1496
D	Outside diameter	170	6.6929
B	Inner-ring / bearing width	39	1.5354
r	Chamfer (min)	2.007	0.079

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)	80
Bore d (in)	3.1496
Outside dia. D (mm)	170
Outside dia. D (in)	6.6929
Width B (mm)	39
Width B (in)	1.5354

Load ratings & speeds

Basic dynamic load rating Cr (lbs)	28700
Basic static load rating Cor (lbs)	22500
Limiting speed - grease (rpm)	3,200
Limiting speed - oil (rpm)	4,300

Weight

Weight (kg)	4.25

Mounting dimensions (fillets / shoulders)

Chamfer r (in)	0.079
Shaft shoulder da min (in)	3.622
Housing shoulder Da max (in)	6.220

Bearing life (ISO 281 basic rating life)

C / P	Equivalent load P (N)	L₁₀ (10⁶ rev)	L_10h at 1,000 rpm
4	31,916	64	1,067
6	21,277	216	3,600
8	15,958	512	8,533
10	12,766	1,000	16,667
15	8,511	3,375	56,250

Basic rating life per ISO 281: L₁₀ = (C/P)³ with C = 127,664 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.41 (dimensions) / p.42 (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
1316-K-M-C3	FAG	Ball	80	170	39	89 kN	4.5
1316-M	FAG	Ball	80	170	39	89 kN	4.56
6316	FAG	Ball	80	170	39	131 kN	3.75
6316-2RSR	FAG	Ball	80	170	39	131 kN	3.75
6316-2Z	FAG	Ball	80	170	39	131 kN	3.82
QJ316-N2-MPA	FAG	Ball	80	170	39	224 kN	4.65
N316-E-TVP2	FAG	Cylindrical Roller	80	170	39	300 kN	4.12
N316-E-XL-TVP2	FAG	Cylindrical Roller	80	170	39	300 kN	4.12
NJ316-E-TVP2	FAG	Cylindrical Roller	80	170	39	300 kN	4.03
NJ316-E-XL-TVP2	FAG	Cylindrical Roller	80	170	39	300 kN	4.03

Same dimensions, same brand

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
1316	NSK	Ball	80	170	39	98 kN	4.24
6316	NSK	Ball	80	170	39	27,600 lbs	3.597
BL316	NSK	Ball	80	170	39	36,200 lbs	4.032
316	NSK	Cylindrical Roller	80	170	39	42,700 lbs	3.856
NU316E	NSK	Cylindrical Roller	80	170	39	315 kN	4.45
21316EAE4	NSK	Spherical Roller	80	170	39	355 kN	4.32
HR30316	NSK	Tapered Roller	80	170	39	290 kN	4.07
HR30316J	NSK	Tapered Roller	80	170	39	62,000 lbs	4.273

Nearby bore sizes

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
1216	NSK	Ball	80	140	26	44 kN	1.68
1316	NSK	Ball	80	170	39	98 kN	4.24
16016	NSK	Ball	80	125	14	35 kN	0.621
2216	NSK	Ball	80	140	33	11,000 lbs	1.901
2316	NSK	Ball	80	170	58	29,200 lbs	5.439
5216J	NSK	Ball	80	140	44.4	22,300 lbs	2.499
6016	NSK	Ball	80	125	22	11,000 lbs	0.848
6216	NSK	Ball	80	140	26	16,300 lbs	1.402

Request a quotation for 7316B

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