| Rothe Erde PART NO. | 231.21.0475.013 Type21/520.1 |
| MAS PART NO. | M 231.21.0475.013 Type21/520.1 |
| Series | Series 23 |
| Gear | External gear |
| Type | Ball |
| System of Measurement | Metric |
| Diameter Of Bearing Raceway Dl(mm) | 414 |
| Outside Diameter Of Outer Ring Da(mm) | 504 |
| Inside Diameter Of Inner Ring Di(mm) | 305+0.08 |
| Height Of Overall Bearing Assembly H(mm) | 56 |
| External Diameter On Inner Ring O(mm) | 412.5 |
| Internal Diameter On Outer Ring U(mm) | 417+0.10 |
| Internal Diameter On Inner Ring C(mm) | 375 |
| Distance Between Bottom Outer Ring Inner Ring Hu(mm) | 10.5 |
| Outside Bole Hole Circle Diameter La(mm) | 455 |
| Number Holes In Outer Ring Na | 10 |
| Bolt Size M(mm) | 12 |
| Thread Depth t(mm) | 20 |
| Intside Bole Hole Circle Diameter Li(mm) | 332 |
| Number Holes In Inner Ring ni | 12 |
| Hole Diameter B(mm) | 18 |
| Pitch Diameter Of Gear d(mm) | 495 |
| Tooth Modules m(mm) | 5 |
| Number Of Gear Teeth z | 99 |
| k.m | -0.5 |
| Tooth Width b(mm) | 45.5 |
| Permissibe Tangential Forces Normal X1kN | 11.75 |
| Permissibe Tangential Forces Maximum X2kN | 23.5 |
| Weight(kg) | 29.3 |
| Number Of Grease Nipples n1 | 4 |
| Min Radial Bearing Clearance (mm) | ≥0to0.03 |
| Min Axial Tilting Clearance(mm) | ≥0to0.03 |
| masbearing@outlook.com | |
| Mob/Wechat | +86 15255522117 |
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