6236NSKBall

Name: NSK 6236 Ball Bearing
Brand: NSK
SKU: 6236

6236 is a NSK ball bearing, bore 180 mm, O.D. 320 mm, width 52 mm, dynamic rating 51,100 lbs. Dimensions, drawing, interchanges and price.

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Bore d180mm

Outside dia. D320mm

Width B52mm

Dynamic Cr51,100lbs

Static C0r55,000lbs

Limiting speed1,700rpm

Weight15.767kg

Cr / C0r0.93

Mean dia. dm250mm

Original catalogue drawing - NSK catalogue, page 17

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	180	7.0866
D	Outside diameter	320	12.5984
B	Inner-ring / bearing width	52	2.0472
r	Chamfer (min)	2.997	0.118

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)	180
Bore d (in)	7.0866
Outside dia. D (mm)	320
Outside dia. D (in)	12.5984
Width B (mm)	52
Width B (in)	2.0472

Load ratings & speeds

Basic dynamic load rating Cr (lbs)	51100
Basic static load rating Cor (lbs)	55000
Limiting speed - grease (rpm)	1,700
Limiting speed - oil (rpm)	2,000
Factor f0	15.1

Weight

Weight (kg)	15.767

Mounting dimensions (fillets / shoulders)

Chamfer r (in)	0.118
Shaft shoulder da min (in)	7.758
Shaft shoulder da max (in)	8.786
Housing shoulder Da max (in)	11.929

Bearing life (ISO 281 basic rating life)

C / P	Equivalent load P (N)	L₁₀ (10⁶ rev)	L_10h at 500 rpm
4	56,826	64	2,133
6	37,884	216	7,200
8	28,413	512	17,067
10	22,730	1,000	33,333
15	15,154	3,375	112,500

Basic rating life per ISO 281: L₁₀ = (C/P)³ with C = 227,304 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.19 (dimensions) / p.20 (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
6236-M	FAG	Ball	180	320	52	240 kN	18.744
QJ236-N2-MPA	FAG	Ball	180	320	52	435 kN	19.6
N236-E-XL-M1	FAG	Cylindrical Roller	180	320	52	730 kN	18.9
NJ236-E-M1	FAG	Cylindrical Roller	180	320	52	730 kN	19.2
NJ236-E-XL-M1	FAG	Cylindrical Roller	180	320	52	730 kN	19.2
NU236-E-M1	FAG	Cylindrical Roller	180	320	52	730 kN	18.9
NU236-E-XL-M1	FAG	Cylindrical Roller	180	320	52	730 kN	18.9
NUP236-E-M1	FAG	Cylindrical Roller	180	320	52	730 kN	17.3
NUP236-E-XL-M1	FAG	Cylindrical Roller	180	320	52	730 kN	17.3
20236-MB	FAG	Spherical Roller	180	320	52	590 kN	18.4

Same dimensions, same brand

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
7236B	NSK	Ball	180	320	52	62,000 lbs	17.69
236	NSK	Cylindrical Roller	180	320	52	111,000 lbs	19.051
NU236E	NSK	Cylindrical Roller	180	320	52	770 kN	19
30236	NSK	Tapered Roller	180	320	52	117,000 lbs	16.601
HR30236	NSK	Tapered Roller	180	320	52	800 kN	17.8
7236	NSK	Precision / Angular Contact	180	320	52	335 kN	18.1
7236A5	NSK	Precision / Angular Contact	180	320	52	71,700 lbs	17.903
7236C	NSK	Precision / Angular Contact	180	320	52	75,000 lbs	17.804

Nearby bore sizes

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
16036	NSK	Ball	180	280	31	159 kN	7.5
6036	NSK	Ball	180	280	46	40,600 lbs	10.433
6336	NSK	Ball	180	380	75	79,600 lbs	44.452
6836	NSK	Ball	180	225	22	13,600 lbs	1.978
6936	NSK	Ball	180	250	33	26,600 lbs	4.881
7236B	NSK	Ball	180	320	52	62,000 lbs	17.69
7336B	NSK	Ball	180	380	75	83,800 lbs	41.005

Request a quotation for 6236

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