CRBE11528B bearings ( 115 mm x 240 mm x 28 mm) have the advantages of The rollers are arranged in a cross pattern, allowing them to withstand radial, axial, and overturning moments simultaneously. They offer high rigidity and rotational accuracy while compact and space-saving design, and easy installation, and are therefore widely used in the Industrial robots, CNC machine tools, medical equipment, precision measuring instruments and aerospace.

| Part Number | CRBE11528B |
| Bearing Type | High rigidity with mounting holes (CRBE) crossed roller bearings, sealed and open type |
| Mounting Holes | B: With same direction counter-bored holes (Sink holes on inner ring and outer ring , same direction) |
| Design | High rigidity with mounting holes (an inner ring and an outer ring with mounting holes), both inner and outer ring rotation |
| Rolling Element Type | Cylindrical Rollers |
| Rows NO. | One |
| Manufacturer Part Code | CRBE 11528 B |
| Load | radial, thrust and moment |
| Seal symbol | WW: Double sides Sealed type; NN: Open type |
| Seal Material | NBR (Nitrile Butadiene Rubber) |
| Accuracy class | P4, P2 |
| Temperature - T(min) [°C] | -30 |
| Temperature - T(max) [°C] | 120 |
| Interchangeable | HIWIN CRBE11528B |
| Inner/Outer Ring Material | 50Mn,42CrMo |
| Rolling Element Material | GCr15 |
| Axial internal clearance | C1: Positive clearance; C8: Negative clearance |
| C8 [µm] | -10 (min), 0 (max) |
| C1 [µm] | 2 (min), 20 (max) |
| d φ Inside [mm] | 115 |
| D Φ Outside [mm] | 240 |
| T,B Width [mm] | 28 |
| C min Chamfer [mm] | 1.5 |
| dOH Oil Holes [mm] | 3 |
| Cr Radial Dynamic [N] | 73100 |
| C0r Radial Static [N] | 131900 |
| Ca Dynamic Axial [N] | 162000 |
| C0a Static Axial [N] | 300000 |
| m Weight [kg] | 6.76 |
| nB Reference speed (grease) [r/min] | 330 |
| nG Limiting speed (oil) [r/min] | 440 |
| Mounting dimensions - da [mm] | 168 |
| Mounting dimensions - Da [mm] | 188 |
| Td max Idling torque [Nm] | 2.7 |
| PCD1 Inner rings [mm] | 139 |
| Inner rings mounting holes | 12-φ9 through φ14 counter bore depth 8.6 |
| PCD2 Outer rings [mm] | 217 |
| Outer rings mounting holes | 12-φ9 through φ14 counter bore depth 8.6 |
| Similar Model | CRBE11528B WW C1 P4 CRBE11528B NN C1 P4 CRBE11528B WW C8 P4 CRBE11528B NN C8 P4 CRBE11528B WW C1 P2 CRBE11528B NN C1 P2 CRBE11528B WW C8 P2 CRBE11528B NN C8 P2 |
The CRBE11528B Crossed roller bearings consist of inner and outer rings, cylindrical rollers, spacers, and seals. The rollers are arranged at 90° intervals within a V-shaped raceway, allowing for multi-directional load bearing even in a single row.
Crossed roller bearings can simultaneously withstand radial loads, bidirectional axial loads, and overturning moments. They possess extremely high rigidity and rotational accuracy, and their compact structure saves installation space, simplifying machine tool design.















