30304 Tapered Roller Bearing 20x52x16.25mm

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Min. Order:

1 Piece

Payment term:

T/T

Delivery time:

10-30 days

Technical Parameters:

Product Designations:

30304

Structure:

Tapered roller bearing

Inside Diameter:

20 mm

Outside Diameter:

52 mm

Thickness:

16.25 mm

Weight:

0.4 KG

Brand:

LBR

Precision Rating:

P0 P6 P5 P4 P2

Bearing Material:

Chrome steel

Seals Type:

Open

Specifications

Series		30304

Cone Part Number		X30304

Cup Part Number		Y30304

Design Units		Metric

Bearing Weight		0.4000 Kg

Cage Type		Stamped Steel

Dimensions

D - Cup Outer Diameter		52.000 mm

d - Cone Bore		20.000 mm

B - Cone Width		15.000 mm

C - Cup Width		13.000 mm

T - Bearing Width		16.250 mm

Z - Number of Rollers Per Row		12

Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius¹

1.520 mm

r - Cup Backface "To Clear" Radius²

1.52 mm

da - Cone Frontface Backing Diameter

24.38 mm

db - Cone Backface Backing Diameter

26.92 mm

Da - Cup Frontface Backing Diameter

48.01 mm

Db - Cup Backface Backing Diameter

45.47 mm

Ab - Cage-Cone Frontface Clearance

2.54 mm

Aa - Cage-Cone Backface Clearance

-0.51 mm

a - Effective Center Location³

-4.80 mm

¹ These maximum fillet radii will be cleared by the bearing corners.
² These maximum fillet radii will be cleared by the bearing corners.
³ Negative value indicates effective center inside cone backface.

Basic Load Ratings

C90 - Dynamic Radial Rating (90 million revolutions)		9980 N

C1 - Dynamic Radial Rating (1 million revolutions)		38500 N

C0 - Static Radial Rating		34500 N

C_a90 - Dynamic Thrust Rating (90 million revolutions)		5130 N

Factors

K - Factor		1.95

e - ISO Factor		0.3

Y - ISO Factor		2

G1 - Heat Generation Factor (Roller-Raceway)		7.5

G2 - Heat Generation Factor (Rib-Roller End)		5.5

Cg - Geometry Factor		0.0458

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30304 Tapered Roller Bearing 20x52x16.25mm

30304 Tapered Roller Bearing 20x52x16.25mm

Series

Cone Part Number

Cup Part Number

Design Units

Bearing Weight

Cage Type

D - Cup Outer Diameter

d - Cone Bore

B - Cone Width

C - Cup Width

T - Bearing Width

Z - Number of Rollers Per Row

R - Cone Backface "To Clear" Radius¹

r - Cup Backface "To Clear" Radius²

da - Cone Frontface Backing Diameter

db - Cone Backface Backing Diameter

Da - Cup Frontface Backing Diameter

Db - Cup Backface Backing Diameter

Ab - Cage-Cone Frontface Clearance

Aa - Cage-Cone Backface Clearance

a - Effective Center Location³

C90 - Dynamic Radial Rating (90 million revolutions)

C1 - Dynamic Radial Rating (1 million revolutions)

C0 - Static Radial Rating

C_a90 - Dynamic Thrust Rating (90 million revolutions)

K - Factor

e - ISO Factor

Y - ISO Factor

G1 - Heat Generation Factor (Roller-Raceway)

G2 - Heat Generation Factor (Rib-Roller End)

Cg - Geometry Factor

30304 Related Products »

Product Groups

Information

Category

30304 Tapered Roller Bearing 20x52x16.25mm

30304 Tapered Roller Bearing 20x52x16.25mm

Series

Cone Part Number

Cup Part Number

Design Units

Bearing Weight

Cage Type

D - Cup Outer Diameter

d - Cone Bore

B - Cone Width

C - Cup Width

T - Bearing Width

Z - Number of Rollers Per Row

R - Cone Backface "To Clear" Radius1

r - Cup Backface "To Clear" Radius2

da - Cone Frontface Backing Diameter

db - Cone Backface Backing Diameter

Da - Cup Frontface Backing Diameter

Db - Cup Backface Backing Diameter

Ab - Cage-Cone Frontface Clearance

Aa - Cage-Cone Backface Clearance

a - Effective Center Location3

C90 - Dynamic Radial Rating (90 million revolutions)

C1 - Dynamic Radial Rating (1 million revolutions)

C0 - Static Radial Rating

Ca90 - Dynamic Thrust Rating (90 million revolutions)

K - Factor

e - ISO Factor

Y - ISO Factor

G1 - Heat Generation Factor (Roller-Raceway)

G2 - Heat Generation Factor (Rib-Roller End)

Cg - Geometry Factor

30304 Related Products »

Product Groups

Information

Category

R - Cone Backface "To Clear" Radius¹

r - Cup Backface "To Clear" Radius²

a - Effective Center Location³

C_a90 - Dynamic Thrust Rating (90 million revolutions)