Double Row M278749D/M278710 Inch Tapered Roller Bearing

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M278749D/M278710

Bore Diameter:571.5 mm

Outside Diameter:812.8 mm

Width:285.75 mm

Reference FOB Price:US100 / Piece

Min. Order:1 Piece

The M278749D/M278710 bearing is a Thin section bearing with an inner diameter of 571.5 mm , an outer diameter of 812.8 mm, a width of 285.75 mm. together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.

Dimensions:

Inside Diameter:

571.5 mm

Outside Diameter:

812.8 mm

Thickness:

285.75 mm

Specifications:

Old Designations:

M278749D/M278710

Transaction Information:

Transport Package:

wooden case

Shipping Ways:

by sea or air or as your request

Country of Origin:

China

Stock:

20 Piece

Production Capacity:

100/month

Port:

Shanghai

Payment term:

T/T

Delivery time:

5days

Detailed description

Tapered Roller Bearings

The taper roller bearing is a separable type bearing which inner components (consists of rollers, cage, and inner ring) can be separated from outer ring. Therefore, it can be very easily installed onto the journal and bearing housing.

Tapered roller bearings are commonly used for moderate speed, heavy duty applications where durability is required such as machine tool spindles, rolling mills, mining equipment, metallurgy industry, plastics makeing machinery and other industries.

CHG® is a leading manufacturer of quality ball, cylindrical and tapered roller bearings. We offer a variety of configurations to tapered roller bearings such as single-row, double-row and four-row with more than 150 different models in both inch and metric sizes. Tapered roller bearings are made of high carbon chrome steel with many in-stock and ready to ship. Any requirement please contact [email protected] for free price.

Bearing Number

M278749DW - M278710

Brand

CHG

Type

Tapered Roller Bearings - TDI (Tapered Double Inner)

Series

M278700

Cone Part Number

M278749DW

Cup Part Number

M278710

Design Units

Imperial

Bearing Weight

1059.70 lb
480.700 Kg

Cage Type

Pin-Type

Aa - Cage-Cone Backface Clearance

0 in
0 mm

d - Bore

22.5000 in
571.500 mm

D - Cup Outer Diameter

32.0000 in
812.800 mm

B - Double Cone Width

11.2500 in
285.750 mm

C - Cup Width

4.7500 in
120.650 mm

T - Bearing Width across Cups

11.2499 in
285.747 mm

C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)

264000 lbf

1180000 N

C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)

1770000 lbf
7890000 N

C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)

460000 lbf
2050000 N

Ca90 - Dynamic Thrust Rating (90 million revolutions)

150000 lbf
669000 N

K - Factor

1.76

e - ISO Factor

0.7

Y1 - ISO Factor

0.97

Y2 - ISO Factor

1.44

G1 - Heat Generation Factor (Roller-Raceway)

12400

G2 - Heat Generation Factor (Rib-Roller End)

669

Cg - Geometry Factor

0.299

R - Cone Frontface "To Clear" Radius

0.130 in
3.30 mm

r - Cup Backface "To Clear" Radius

0.250 in
6.40 mm

da - Cone Frontface Backing Diameter

23.98 in
609.10 mm

Db - Cup Backface Backing Diameter

29.76 in
755.90 mm

Ab - Cage-Cone Frontface Clearance

0.34 in
8.6 mm

Bearing Number	M278749DW - M278710
Brand	CHG
Type	Tapered Roller Bearings - TDI (Tapered Double Inner)
Series	M278700
Cone Part Number	M278749DW
Cup Part Number	M278710
Design Units	Imperial
Bearing Weight	1059.70 lb 480.700 Kg
Cage Type	Pin-Type
Aa - Cage-Cone Backface Clearance	0 in 0 mm
d - Bore	22.5000 in 571.500 mm
D - Cup Outer Diameter	32.0000 in 812.800 mm
B - Double Cone Width	11.2500 in 285.750 mm
C - Cup Width	4.7500 in 120.650 mm
T - Bearing Width across Cups	11.2499 in 285.747 mm
C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)	264000 lbf 1180000 N
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)	1770000 lbf 7890000 N
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)	460000 lbf 2050000 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)	150000 lbf 669000 N
K - Factor	1.76
e - ISO Factor	0.7
Y1 - ISO Factor	0.97
Y2 - ISO Factor	1.44
G1 - Heat Generation Factor (Roller-Raceway)	12400
G2 - Heat Generation Factor (Rib-Roller End)	669
Cg - Geometry Factor	0.299
R - Cone Frontface "To Clear" Radius	0.130 in 3.30 mm
r - Cup Backface "To Clear" Radius	0.250 in 6.40 mm
da - Cone Frontface Backing Diameter	23.98 in 609.10 mm
Db - Cup Backface Backing Diameter	29.76 in 755.90 mm
Ab - Cage-Cone Frontface Clearance	0.34 in 8.6 mm

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Double Row M278749D/M278710 Inch Tapered Roller Bearing

Tapered Roller Bearings

The taper roller bearing is a separable type bearing which inner components (consists of rollers, cage, and inner ring) can be separated from outer ring. Therefore, it can be very easily installed onto the journal and bearing housing.

Tapered roller bearings are commonly used for moderate speed, heavy duty applications where durability is required such as machine tool spindles, rolling mills, mining equipment, metallurgy industry, plastics makeing machinery and other industries.

Bearing Number

M278749DW - M278710

Brand

CHG

Type

Tapered Roller Bearings - TDI (Tapered Double Inner)

Series

M278700

Cone Part Number

M278749DW

Cup Part Number

M278710

Design Units

Imperial

Bearing Weight

1059.70 lb 480.700 Kg

Cage Type

Pin-Type

Aa - Cage-Cone Backface Clearance

0 in 0 mm

d - Bore

22.5000 in 571.500 mm

D - Cup Outer Diameter

32.0000 in 812.800 mm

B - Double Cone Width

11.2500 in 285.750 mm

C - Cup Width

4.7500 in 120.650 mm

T - Bearing Width across Cups

11.2499 in 285.747 mm

C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)

264000 lbf 1180000 N

C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)

1770000 lbf 7890000 N

C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)

460000 lbf 2050000 N

Ca90 - Dynamic Thrust Rating (90 million revolutions)

150000 lbf 669000 N

K - Factor

1.76

e - ISO Factor

0.7

Y1 - ISO Factor

0.97

Y2 - ISO Factor

1.44

G1 - Heat Generation Factor (Roller-Raceway)

12400

G2 - Heat Generation Factor (Rib-Roller End)

669

Cg - Geometry Factor

0.299

R - Cone Frontface "To Clear" Radius

0.130 in 3.30 mm

r - Cup Backface "To Clear" Radius

0.250 in 6.40 mm

da - Cone Frontface Backing Diameter

23.98 in 609.10 mm

Db - Cup Backface Backing Diameter

29.76 in 755.90 mm

Ab - Cage-Cone Frontface Clearance

0.34 in 8.6 mm

M278749D/M278710 Related Products »

Product Groups

Information

Category

1059.70 lb
480.700 Kg

0 in
0 mm

22.5000 in
571.500 mm

32.0000 in
812.800 mm

11.2500 in
285.750 mm

4.7500 in
120.650 mm

11.2499 in
285.747 mm

264000 lbf

1180000 N

1770000 lbf
7890000 N

460000 lbf
2050000 N

150000 lbf
669000 N

0.130 in
3.30 mm

0.250 in
6.40 mm

23.98 in
609.10 mm

29.76 in
755.90 mm

0.34 in
8.6 mm