HR32307CNSKTapered Roller

Name: NSK HR32307C Tapered Roller Bearing
Brand: NSK
SKU: HR32307C

HR32307C is a NSK tapered roller bearing, bore 35 mm, O.D. 80 mm, width 31 mm, dynamic rating 20,000 lbs. Dimensions, drawing, interchanges and price.

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Bore d35mm

Outside dia. D80mm

Width B31mm

Dynamic Cr20,000lbs

Static C0r24,700lbs

Limiting speed4,800rpm

Weight0.771kg

Cr / C0r0.81

Mean dia. dm57.5mm

Original catalogue drawing - NSK catalogue, page 131

HR32307C 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	35	1.378
D	Outside diameter	80	3.1496
B	Inner-ring / bearing width	31	1.2205
T	Overall assembly width	32.75	1.2894
C	Cup / outer-ring width	24	0.9449

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)	35
Bore d (in)	1.3780
Outside dia. D (mm)	80
Outside dia. D (in)	3.1496
Width B (mm)	31
Width B (in)	1.2205
Overall width T (mm)	32.75
Overall width T (in)	1.2894
Cup width C (mm)	24
Cup width C (in)	0.9449

Load ratings & speeds

Basic dynamic load rating Cr (lbs)	20000
Basic static load rating Cor (lbs)	24700
Limiting speed - grease (rpm)	4,800
Limiting speed - oil (rpm)	6,300

Weight

Weight (kg)	0.771

Mounting dimensions (fillets / shoulders)

Chamfer r (in)	0.059
Shaft shoulder da min (in)	1.931
Housing shoulder Da max (in)	2.797
Shaft shoulder db max (in)	1.734

Bearing life (ISO 281 basic rating life)

C / P	Equivalent load P (N)	L₁₀ (10⁶ rev)	L_10h at 1,600 rpm
4	22,241	102	1,058
6	14,827	392	4,089
8	11,121	1,024	10,667
10	8,896	2,154	22,442
15	5,931	8,323	86,703

Basic rating life per ISO 281: L₁₀ = (C/P)^10/3 with C = 88,964 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.133 (dimensions) / p.134 (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
2307-2RS-TVH	FAG	Ball	35	80	31	25.5 kN	0.744
2307-K-TVH-C3	FAG	Ball	35	80	31	40.5 kN	0.96
2307-TVH	FAG	Ball	35	80	31	40.5 kN	0.975
4307-B-TVH	FAG	Ball	35	80	31	58 kN	0.59
62307-2RSR	FAG	Ball	35	80	31	35.5 kN	0.651
NJ2307-E-TVP2	FAG	Cylindrical Roller	35	80	31	108 kN	0.736
NJ2307-E-XL-TVP2	FAG	Cylindrical Roller	35	80	31	108 kN	0.736
NU2307-E-TVP2	FAG	Cylindrical Roller	35	80	31	108 kN	0.723
NU2307-E-XL-TVP2	FAG	Cylindrical Roller	35	80	31	108 kN	0.723
NUP2307-E-TVP2	FAG	Cylindrical Roller	35	80	31	108 kN	0.751

Same dimensions, same brand

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
2307	NSK	Ball	35	80	31	8,770 lbs	0.744
2307	NSK	Cylindrical Roller	35	80	31	13,500 lbs	0.689
NU2307E	NSK	Cylindrical Roller	35	80	31	115 kN	0.711
HR32307	NSK	Tapered Roller	35	80	31	122 kN	0.765
HR32307J	NSK	Tapered Roller	35	80	31	22,300 lbs	0.767

Nearby bore sizes

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
HR30207	NSK	Tapered Roller	35	72	17	66.5 kN	0.34
HR30207C	NSK	Tapered Roller	35	72	17	10,600 lbs	0.324
HR30207J	NSK	Tapered Roller	35	72	17	12,100 lbs	0.34
HR30307	NSK	Tapered Roller	35	80	21	93.5 kN	0.538
HR30307C	NSK	Tapered Roller	35	80	21	15,300 lbs	0.508
HR30307J	NSK	Tapered Roller	35	80	21	17,100 lbs	0.54
HR31307	NSK	Tapered Roller	35	80	21	76.5 kN	0.52
HR31307J	NSK	Tapered Roller	35	80	21	13,900 lbs	0.522

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