ER51 Bore 80.9625 Mm, Set Screw Locking Wide Inner Ring, Insert Ball Bearing
The ER51 Insertion bearings are suitable for applications with limited installation space and requiring frequent maintenance. Classic applications include agricultural machinery, conveyor equipment, textile machinery, construction machinery, food processing equipment, and fan and air conditioning units. are suitable for applications with limited installation space and requiring frequent maintenance. Classic applications include agricultural machinery, conveyor equipment, textile machinery, construction machinery, food processing equipment, and fan and air conditioning units.
The ER51 bearing is a Set Screw Locking Wide Inner Ring Insert Ball Bearing with an inner diameter of 80.9625 mm , an outer diameter of 140 mm, a width of 77.79 mm. Bearing Steel rings, Bearing Steel rolling mlement. Its dynamic radial rated load is approximately 79476 N, its static radial rated load is approximately 54168 N. Two Narrow Shroud Seal type, together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.
ER51 bearings ( 80.9625 mm x 140 mm x 77.79 mm) have the advantages of Easy to install, self-aligning, maintenance-free., and are therefore widely used in the Conveying equipment, agricultural machinery, and fans.
| Part Number | ER51 |
| Bearing Type | Set Screw Locking Wide Inner Ring Insert Ball Bearing |
| Application Series | Industrial |
| Interchangeable | FAFNIR ER51 |
| Lubrication Type | Relubricatable |
| Locking Type | Set Screw |
| Set Screw Size | M12x1.75 |
| Angle between Set Screws | 90 ° |
| Outside Diameter Type | Cylindrical |
| Seal Type | Two Narrow Shroud Seal |
| Units | Inch |
| Number Of Balls | One |
| Number Of Set Screws | 2 |
| Radial Dynamic Capacity - Cr [lbf] | 17866 |
| Radial Static Capacity - C0r [lbf] | 12176 |
| Shaft Size | 3.1875 inch |
| Inside - d φ [inch] | 3.187 |
| Outside - D Φ [inch] | 5.512 |
| Inner Ring Width - B [inch] | 3.063 |
| Outer Ring Width - C [inch] | 1.687 |
| F [inch] | 3.875 |
| Chamfer - r [inch] | 0.024 |
| Center of Bearing from End - S [inch] | 1.125 |
| D1 [inch] | 5.890 |
| T [inch] | 0.110 |
| M [inch] | 0.437 |
| S1 [inch] | 1.937 |
| J [inch] | 0.531 |
| X [inch] | 1.672 |
| Y [inch] | 1.391 |
The ER51 Insert bearings primarily consist of a spherical outer ring, a wide inner ring, steel balls, a cage, and seals. The inner ring extends at one or both ends and is equipped with an eccentric sleeve or set screw for quick locking onto the shaft.
Insertion bearings are suitable for applications with limited installation space and requiring frequent maintenance. Classic applications include agricultural machinery, conveyor equipment, textile machinery, construction machinery, food processing equipment, and fan and air conditioning units. feature self-aligning capabilities, compensating for installation misalignment and shaft deflection. The wide inner ring design allows for direct installation onto the shaft without additional steps. They offer excellent sealing performance, a compact structure, and easy assembly and disassembly.
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