7248-B-MP-UA Angular Contact Ball Bearings, Single Row, Solid Brass Cage

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7248-B-MP-UA

Bore Diameter:240 mm

Outside Diameter:440 mm

Width:72 mm

Weight:49.2 kg

Min. Order:1 Piece

The 7248-B-MP-UA Single-row angular contact ball bearings are widely used in precision spindles and transmission systems of heavy equipment, such as: large machine tool spindles (machining centers, grinding machines), industrial robot joints, centrifuges, compressors, large pumps, and wind power generation equipment spindles.

The 7248-B-MP-UA bearing is a Angular contact ball bearings, single row with an inner diameter of 240 mm , an outer diameter of 440 mm, a width of 72 mm. It typically uses PN grade precision tolerances and bearing steel rings, bearing steel rolling mlement. Its dynamic radial rated load is approximately 439999 N, its static radial rated load is approximately 709993 N. Open type, together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.

Dimensions:

Inside Diameter:

240 mm

Outside Diameter:

440 mm

Thickness:

72 mm

Weight:

49.2 KG

Performance Data:

Dynamic load Capacity, Radial (Cr):

439999 N

Static load Capacity, Radial (Cor):

709993 N

Fatigue Load Limit, Radial:

20094 N

Reference speed (Grease rpm):

1584

Limiting speed (Oil rpm):

2212

Specifications:

Old Designations:

7248BMPUA

Structure:

Single row angular contact ball bearings

Number of Rows:

single

Precision Rating:

Bearing Material:

bearing steel

Cage Type:

MP = solid brass cage, ball guided

Seals Type:

Open

Rolling Mlement Material:

bearing steel

Contact Angle:

Bore Type:

Z = Cylindrical Bore

Operating Temperature:

-30 to 200 °C

Series:

72..-B-MP

Rolling Element:

balls

Transaction Information:

Transport Package:

Standard Export Package

Service:

7*24 hour

Shipping Ways:

by Sea or Air

Country of Origin:

china

Stock:

200 Piece

Port:

Tianjin, Shanghai, Shenzhen, Guangzhou or Qingdao

Payment term:

by T/T in advance

Delivery time:

2-3 days for stock, 25-30 days for bulk production

Detailed description

7248-B-MP-UA bearings ( 240 mm x 440 mm x 72 mm) have the advantages of High load-bearing capacity, high rigidity, and long service life, and are therefore widely used in the Construction machinery, wind power generation, port machinery, solar tracking systems, industrial robots, medical equipment, aerospace, and military equipment.

Part Number	7248-B-MP-UA
Design Type	B = Modified internal construction
Bearing Type	Angular contact ball bearings, single row
Series	72..-B-MP
Contact angle - α [°]	40
Rows NO.	single
Manufacturer Part Code	7248-B-MP-UA
Cage	MP = solid brass cage, ball guided
Equivalent	7248B.MP.UA
Lubricant	Without
Seal type	Open
Bearing pair	UA = Universal design for mounting in pairs, bearing pair has small axial internal clearance in O and X arrangement
Heat stabilization	S1 = up to 200°
m Weight [kg]	49.2
Reference From	FAG 7248-B-MP-UA
Dimensions
d φ Inside [inch]	9.449
D Φ Outside [inch]	17.323
B Width [inch]	2.835
r(min.) [inch]	0.157
r₁(min.) [inch]	0.059
D₁ [inch]	14.250
d₁ [inch]	12.697
a [inch]	7.031
Performance
C_r Radial Dynamic [N]	439999
C_0r Radial static [N]	709993
C_ur Radial Fatigue [N]	20094
n_G Limiting speed (oil) [r/min]	2212
n_B Reference speed (grease) [r/min]	1584
Mounting dimensions
d_a(min.) [inch]	10.118
D_a(max.) [inch]	16.654
D_b(max.) [inch]	16.968
r_a(max.) [inch]	0.118
r_a1(max.) [inch]	0.059
Axial clearance
Axial clearance per set - A_min [µm]	110
Tolerance for axial clearance or preload per set - Tol(+) [µm]	16

The 7248-B-MP-UA Single-row angular contact ball bearings mainly consist of an inner ring, an outer ring, steel balls, and a cage. The raceways of the inner and outer rings are offset from each other, forming a contact angle. They are typically designed as non-separable bearings with contact angles of 15°, 25°, or 40°. The cage can be made of solid brass or phenolic resin.

The larger the contact angle of a single-row angular contact ball bearing (e.g., 40°), the stronger its axial load capacity. 15° or 25° contact angles are suitable for high-speed applications. They can simultaneously withstand radial loads and unidirectional axial loads. When installed in pairs (back-to-back, face-to-face, or in series), they can withstand bidirectional axial loads and improve rigidity. Larger bearings have higher basic dynamic load ratings, reaching hundreds of kN or more.

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7248-B-MP-UA Angular Contact Ball Bearings, Single Row, Solid Brass Cage

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