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Timken HJ-8811248 is a single row cylindrical roller bearing (CRB) for general industrial applications. This bearing features a dynamic load rating of 411 kN (92,400 lbf) and a static load rating of 883 kN (198,000 lbf). It is designed for applications requiring high radial load capacity and moderate speeds, such as gearboxes, electric motors, and industrial machinery.
MODEL HJ-8811248
$516.05 Each
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Returnable: Yes
0.1 in Dimension C/B
76.2 mm
139.659 in Min. Mounting Dimensions Clearance Fit 1
139.675 mm
198000 lbf Thermal speed ratings - grease
2200 RPM Thermal speed ratings - oil:2500 RPM Used with Inner Ring Designation:IR-728848
3.0000 in Dynamic load rating
411 kN 92400 lbf Geometry factor:0.1369 Max. Mounting Dimensions Clearance Fit 1:139.70 mm
5.4974 in O.D. (in)
177.800 mm 7.0000 Shaft Diameter (F:139.70 mm
5.4990 in Min. Mounting Dimensions Clearance Fit 2
177.800 mm
5.50 in Max. Mounting Dimensions Clearance Fit 2
177.841 mm
5.50 in Shoulder Diameter D
163.51 mm
6.438 in Speed ratings - grease
2200 RPM Speed ratings - oil:2500 RPM Static load rating:883000 N
6.9978 in Max. Mounting Dimensions Tight Transition Fit S
5.4984 mm
6.9994 in Min. Mounting Dimensions Tight Transition Fit S
139.634 mm
7.000 in Min. Mounting Dimensions Tight Transition Fit H
177.785 mm
7.0016 in Max. Mounting Dimensions Tight Transition Fit H
177.744 mm
Chamfer
2.540 mm
Chamfer r
2.540 mm 0.1 in
D - Outer Diameter
177.800 mm 7.0000 in
Dimension C/B
76.2 mm 3.0000 in
Dynamic load rating
411 kN 92400 lbf
Dynamic Load Rating C
411000 N 92400 lbf
Geometry factor
0.1369
Geometry Factor C
0.1369
Max. Mounting Dimensions Clearance Fit 1
139.70 mm 5.50 in
Max. Mounting Dimensions Clearance Fit 2
177.841 mm 7.0016 in
Max. Mounting Dimensions Tight Transition Fit H
177.744 mm 6.9978 in
Max. Mounting Dimensions Tight Transition Fit S
5.4984 mm 139.659 in
Min. Mounting Dimensions Clearance Fit 1
139.675 mm 5.4990 in
Min. Mounting Dimensions Clearance Fit 2
177.800 mm 7.000 in
Min. Mounting Dimensions Tight Transition Fit H
177.785 mm 6.9994 in
Min. Mounting Dimensions Tight Transition Fit S
139.634 mm 5.4974 in
Shaft Diameter (F
139.70 mm 5.50 in
Shoulder Diameter D
163.51 mm 6.438 in
Speed ratings - grease
2200 rpm
Speed ratings - oil
2500 rpm
Static load rating
883 kN 198000 lbf
Static Load Rating C
883000 N 198000 lbf
Thermal Speed Ratings - Grease
2200 rpm
Thermal Speed Ratings - Oil
2500 rpm
Used with Inner Ring Designation
IR-728848
- 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.
SKU: 5066946
Best company to buy from
I always buy from MRO is a very reliable company to work with
Read moreHow do I choose the right type of bearing for my application?
Start with the load and how it’s applied. You need to know if you’re dealing with radial loads, axial loads, or a mix of both. Then look at speed, operating environment, and space constraints. For example, ball bearings are great for high speed and lighter loads, while roller bearings handle heavier loads but usually at lower speeds. If there’s contamination, moisture, or heat involved, you may need sealed bearings or specific materials. In most cases, the right choice comes down to matching load type, speed, and environment to the bearing design.
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SKU: 5066946
Best company to buy from
I always buy from MRO is a very reliable company to work with
Read more