TIMKEN HJ-8811248 | Cylindrical Roller Radial Bearings - HJ Series

TIMKEN Bearing HJ-8811248

Clearance fit suggested for outer ring when housing is stationary relative to load.
Tight transition fit suggested if housing rotates relative to load.
Consult your Timken representative for oscillating applications (e.g., low radial-clearance concerns).
Unmarked end of outer ring should be assembled against housing shoulder to clear maximum allowed housing fillet (ras max).
Meets Military Standard MS 51961.

Material: Bearing steels

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Specifications of TIMKEN Bearing HJ-8811248

TIMKEN Cylindrical Roller Radial Bearings – HJ Series HJ-8811248 are cylindrical roller bearings that can be used in many applications, such as industrial and automotive. These bearings are made from high quality materials, such as carbon steel, and have an outer diameter of 8.875 inches. They are designed to provide reliable performance in extreme conditions.
Size: The has an outside diameter of 8.8 inches, a width of 11.48 inches, and a bore of 4.8 inches.
Material: The has an inner and outer ring made from high-quality steel and the rollers are made from a case-hardened steel alloy.
Structure: HJ-8811248 has a single-row cylindrical structure with an inner ring, an outer ring, and rollers. The inner and outer rings are made from high-quality steel and the rollers are made from a case-hardened steel alloy.
Usage: The is designed mainly to carry radial loads and is used in applications such as gearboxes, motors, and pumps.
Advantages: These bearings provide reliable performance in extreme conditions and are designed to handle heavy loads. They are also resistant to shock and can last for many years.
Disadvantages: These bearings can be more expensive than other types of bearings, and they require more maintenance.

Bearing Dimensions

Shaft Diameter (F_w)	139.70 mm5.50 in
D – Outer Diameter	177.8 mm7 in
Dimension C/B	76.2 mm3.0000 in

Specifications

Static Load Rating C_o	883000 N198000 lbf
Dynamic Load Rating C₁¹	411000 N92400 lbf
Geometry Factor C_g²	0.1369
Thermal Speed Ratings – Oil	2500 rpm
Thermal Speed Ratings – Grease	2200 rpm
Weight	4.817 Kg10.620 lb

Mounting Data

Chamfer r_smin	2.54 mm0.1 in
Max. Mounting Dimensions Clearance Fit 1	139.70 mm5.50 in
Min. Mounting Dimensions Clearance Fit 1	139.675 mm5.4990 in
Max. Mounting Dimensions Clearance Fit 2	177.841 mm7.0016 in
Min. Mounting Dimensions Clearance Fit 2	177.800 mm7.000 in
Max. Mounting Dimensions Tight Transition Fit S	5.4984 mm139.659 in
Min. Mounting Dimensions Tight Transition Fit S	139.634 mm5.4974 in
Max. Mounting Dimensions Tight Transition Fit H	177.744 mm6.9978 in
Min. Mounting Dimensions Tight Transition Fit H	177.785 mm6.9994 in
Shoulder Diameter D_a	163.51 mm6.438 in

Sub Assembly Part Numbers

Used with Inner Ring Designation

IR-728848

Product description of TIMKEN Bearing HJ-8811248

TIMKEN Bearing HJ-8811248,It Beongs to TIMKEN Bearing > Cylindrical Roller Bearings > Cylindrical Roller Radial Bearings - HJ Series. And related type you may also like TIMKEN Bearing HJ-9211648.

Timken offers standard and specially designed single-row cylindrical roller bearings in a wide range of configurations and series for your application requirements. Our EJ series steel cage bearings available in 65-150 mm bore sizes, are part of our offering that includes brass cage and full-complement cylindrical roller bearings.

Size range: 65 to 150 mm OD

Design Attributes
Available in brass cage, steel cage and full-complement designs
Dimension-ally interchangeable industry-standard mounted bearings from 65 mm to 1,200 mm
High load carrying capacity resulting from proprietary profiles and optimized raceway surfaces
Smooth surfaces reduce friction and lower operating temperatures to promote longer bearing life.
Key Applications of TIMKEN Bearing HJ-8811248,Cylindrical Roller Radial Bearings - HJ Series.

Gear drives
-Helical industrial gearboxes
-Planetary gearboxes
-Geared motors

Pumps
Compressors
Electric motors
Centrifuges

TIMKEN Bearing HJ-8811248,Cylindrical Roller Radial Bearings - HJ Series. These bearings carry radial load only and can accommodate both expansion and contraction. The relative axial displacement of one ring to the other occurs with minimum friction while the bearing is rotating. Type N bearings may be used in one or two positions for shaft support if other means of axial location are provided. The outer ring has a cylindrical bore without ribs and the inner ring incorporates two ribs.

Size range: 80 mm to 2000 mm OD

Design Attributes
Design has a cylindrical outer ring and two ribs on the inner ring, making type N bearings well suited for use as floating bearings.
Separable components simplify mounting and removal.
Accommodates axial expansion and contraction.
Provides axial displacement between rings with minimum friction while rotating.
Supports heavy radial loads.
Not suitable for applications with thrust loads.

Applications
Cement making equipment such as crushers; vertical, ball and rolling mills; conveyor drives; gear reducers, spherical pillow blocks; trunnions and rotary kilns Power generation equipment such as pulverize-rs, gearboxes and gear drives Oilfield equipment such as mud pumps, draw-works, swivels, block hooks, crown blocks, traveling blocks and top drives

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Literature & catalogs

TIMKEN -LUBRICATION

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TIMKEN -TYPE- TDI

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TIMKEN-TAPERED ROLLER BEARING CAGES

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TIMKEN-TYPE- TS

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Videos

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Timken Tricks of the Trade – Installing a Timken® Set Right® Bearing

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TIMKEN Bearing HJ-8811248