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Timken 378RYSL1963 is a cylindrical roller bearing (CRB) from the long product series, designed for applications requiring high radial load capacity. This bearing falls within the less than 36 inch outside diameter (OD) size class. It is suitable for use in industrial gearboxes, rolling mills, and other heavy machinery where robust performance is essential.
MODEL 378RYSL1963
$19,512.64 Each
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0 in Lubrication Hole Diameter h
0 mm
0 in Number of Lubrication Holes
0 O.D. D:480 mm
0.12 in DUR/DOR F/E
378 mm
13.7795 in Width C
350 mm
14.5900 in Bore d
340.000 mm Chamfer:3 mm
14.8819 in Inner-Ring Set
340ARYSL1963 Lubrication Groove g:0 mm
17.5600 in Backing Shaft Diameter d
370.6 mm
18.8976 in Outer-Ring Set
378RYSL1963 Static load rating:10880000 N
2444000 lbf Type
RY-3 Width B:350 mm
Angle of Chamfer r
20 º
Backing Housing Diameter D
446 mm 17.5600 in
Backing Shaft Diameter d
370.6 mm 14.5900 in
Bore d
340 mm
Chamfer r
8 mm 0.320 in
DUR/DOR F/E
378 mm 14.8819 in
Dynamic Load Rating C
5180000 N 1162000 lbf
Inner-Ring Set
340ARYSL1963
Lubrication Groove g
0 mm 0 in
Lubrication Hole Diameter h
0 mm 0 in
Number of Lubrication Holes
0
O.D. D
480 mm 18.8976 in
Outer-Ring Set
378RYSL1963
Static Load Rating C
10880000 N 2444000 lbf
Type
RY-3
Width B
350 mm 13.7795 in
Width C
350 mm 13.7795 in
Timken’s four-row cylindrical roller bearings are designed for the rigors of daily use in applications where moderate and high speeds, high radial loads, elevated temperatures and debris are constant challenges. Designed with well-balanced cross sections, these bearings provide high-radial-load capacity within the bearing envelope.
The radial internal clearance (RIC) for the bearing assembly must be included when ordering either a) the complete assembly or b) with the inner-ring set. It is advisable to order the inner-ring set independent of the outer ring set when the final grind of the inner-ring O.D. is accomplished after mounting on the roll neck.
The RY bearing style incorporates two outer races with triple flanges (solid ribs). The inner race is usually single-piece construction. The outer assemblies consist of the outer race, rollers and cages, which create a unitized construction. Handling is made simple by this design. A loading slot is used for roller insertion. Lubrication is generally accomplished via slots in the faces of the outer ring. The cage is single-piece, fully machined brass or steel material. The roller pockets are staggered between the races.
- Two outer rings with integral ribs.
- Two inner rings.
- RY-2 – with lubrication grooves and holes on outer rings.
- RY-3 – without lubrication grooves and holes on outer rings.
- Two solid-steel or brass cages.
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.
SKU: 5066946
Best company to buy from
I always buy from MRO is a very reliable company to work with
Read more