FYH ER204 Insert Bearing, 20 mm Bore, Set Screw, Snap Ring, 47 mm O.D.
Available
This page covers 6 FYH ER200 series insert bearings (ER204 to ER210) with set screws, a cylindrical O.D. and a snap ring, bore sizes 20 to 50 mm (metric). Choose the size from the drop-down: each variant has its own dimensions, load ratings and mass in the Model Details.
The ER insert has a cylindrical O.D. with a locating snap ring and a grease groove with grease holes on the outer ring. The RB insert in the catalogue has the same dimensions without the snap ring and grease features.
Where this product is used
- Machinery with a machined bore that takes a cylindrical O.D. insert
- Conveyor rollers, drive shafts and idler stations
- Fans, blowers and pumps
- Agricultural, construction and general industrial machinery
Features
- Cylindrical O.D. with a grease groove and grease holes on the outer ring for re-lubrication
- Locating snap ring on the outer ring, with a snap ring groove, to simplify locating the bearing during installation
- Two FYH Bullet Point set screws spaced 120 degrees apart lock the insert to the shaft
- Rubber seal with metal slinger, supplied pre-lubricated with FYH grease
- Basic dynamic load rating Cr 12.8 to 35.1 kN and static rating C0r 6.65 to 23.3 kN (see the Model Details for each size)
Key specifications
| Specification | Detail |
|---|---|
| Type | Insert bearing (deep groove ball bearing) with set screws, cylindrical O.D. and snap ring |
| Models | ER204 to ER210 (6 sizes) |
| Bore diameter d | 20 to 50 mm (metric) |
| Outer diameter D | 47 to 90 mm |
| Inner ring width B | 31 to 51.6 mm |
| Outer ring width C | 16 to 28 mm |
| Locking | Set screws, spaced 120 degrees apart |
| Outer ring | Cylindrical O.D. with grease groove and grease holes on the outer ring |
| Seal | Rubber seal with metal slinger |
| Lubrication | Supplied pre-lubricated with FYH grease |
| Duty | Diameter series 2 (normal duty) |
| Basic dynamic load rating Cr | 12.8 to 35.1 kN |
| Basic static load rating C0r | 6.65 to 23.3 kN |
| Allowable rotating speed (standard value) | 2,800 to 5,800 rpm |
| Brand | FYH (FYH Inc., Japan) |
Available sizes
| Model | Bore d (mm) | O.D. D (mm) | Width B (mm) | Cr (kN) | C0r (kN) | Speed (rpm) | Mass (kg) |
|---|---|---|---|---|---|---|---|
| ER204 | 20 | 47 | 31 | 12.8 | 6.65 | 5,800 | 0.22 |
| ER205 | 25 | 52 | 34.1 | 14 | 7.85 | 5,100 | 0.27 |
| ER206 | 30 | 62 | 38.1 | 19.5 | 11.3 | 4,300 | 0.39 |
| ER207 | 35 | 72 | 42.9 | 25.7 | 15.4 | 3,700 | 0.63 |
| ER208 | 40 | 80 | 49.2 | 29.1 | 17.8 | 3,300 | 0.81 |
| ER210 | 50 | 90 | 51.6 | 35.1 | 23.3 | 2,800 | 0.98 |
Selecting the right option
Every size on this page has a metric bore (shaft sizes in mm). Match the bore to the shaft you have: an inch shaft needs the imperial version of the same insert, which is a different size.
ER inserts have a cylindrical O.D. and a snap ring on the outer ring, so they locate in a machined bore or housing differently from UC type inserts. Confirm the housing or bore before ordering.
Fitting and use
Check the load and speed against the catalogue figures in the Model Details before ordering, and apply a suitable safety factor. The allowable rotating speed in the catalogue is a standard value: it falls to 80% for units fitted with covers, and a loose fit between shaft and inner ring reduces it further.
Tighten the set screws once the insert is in position on the shaft.
Related products
Related FYH insert bearing pages: ER200 insert bearings, 3/4 to 1 7/8 in bore (imperial), ER200 insert bearings, 1 1/4 and 1 1/2 in bore (imperial), UC200 insert bearings, 1/2 to 3 1/2 in bore (imperial), UC200 insert bearings, 12 to 90 mm bore (metric), SB200 insert bearings, 1/2 to 1 7/16 in bore (imperial) and SB200 insert bearings, 12 to 40 mm bore (metric). Single-model pages in this range: ER209 and ER212.
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FYH ER200 Series Insert Bearings, Set Screw, Snap Ring, 20 to 50 mm Bore (Metric): 1.85
SKU: A0104893 | Model: ER204/FYH
FYH ER204 insert bearing, 20 mm bore, set screw lock, 47 mm O.D., Cr 12.8 kN.