TIMKEN HJ-729640 | Cylindrical Roller Radial Bearings - HJ Series

TIMKEN Bearing HJ-729640

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-729640

Description: The TIMKEN HJ-729640 is a cylindrical roller radial bearing. It is mainly used for high radial loads and some axial loads in both directions.
Size: The bore diameter is 296.850 mm and the outside diameter is 412.650 mm.
Material: The TIMKEN HJ-729640 is made of high quality steel. Structure: The cylindrical roller radial bearing has a single-row design with an inner and outer ring. The internal design of the bearing consists of two conical rollers, a cage and two rings.
Usage: The is typically used in applications such as pumps, compressors, gearboxes, and turbines.
Advantages: The bearing is highly durable and can handle large amounts of radial load. The bearing is also easy to install and offers low maintenance.
Disadvantages: The bearing can be expensive due to its high quality materials. The bearing can also have a high noise level due to its design

Bearing Dimensions

Shaft Diameter (F_w)	114.30 mm4.50 in
D – Outer Diameter	152.4 mm6 in
Dimension C/B	63.5 mm2.5 in

Specifications

Static Load Rating C_o	599000 N135000 lbf
Dynamic Load Rating C₁¹	320000 N71900 lbf
Geometry Factor C_g²	0.1137
Thermal Speed Ratings – Oil	3200 rpm
Thermal Speed Ratings – Grease	2800 rpm
Weight	3.372 Kg7.434 lb

Mounting Data

Chamfer r_smin	2.54 mm0.1 in
Max. Mounting Dimensions Clearance Fit 1	114.30 mm4.50 in
Min. Mounting Dimensions Clearance Fit 1	114.277 mm4.4991 in
Max. Mounting Dimensions Clearance Fit 2	152.441 mm6.0016 in
Min. Mounting Dimensions Clearance Fit 2	152.400 mm6.000 in
Max. Mounting Dimensions Tight Transition Fit S	4.4986 mm114.264 in
Min. Mounting Dimensions Tight Transition Fit S	114.242 mm4.4977 in
Max. Mounting Dimensions Tight Transition Fit H	152.344 mm5.9978 in
Min. Mounting Dimensions Tight Transition Fit H	152.385 mm5.9994 in
Shoulder Diameter D_a	138.11 mm5.438 in

Sub Assembly Part Numbers

Used with Inner Ring Designation

IR-607240

Product description of TIMKEN Bearing HJ-729640

TIMKEN Bearing HJ-729640,It Beongs to TIMKEN Bearing > Cylindrical Roller Bearings > Cylindrical Roller Radial Bearings - HJ Series. And related type you may also like TIMKEN Bearing HJ-8010432.

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-729640,Cylindrical Roller Radial Bearings - HJ Series.

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

Pumps
Compressors
Electric motors
Centrifuges

TIMKEN Bearing HJ-729640,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 Tricks of the Trade Wheel End Bearing Removal Tips

TIMKEN Bearing HJ-729640