Part Number | 121.40.4750.990.41.1502 |
Brand: BearingMaker | Interchangeable With: ROTHEERDE |
System of Measurement | Metric |
Series | Series 12 |
Gear | External Gear |
Type | Roller |
Bearing Type | Standard |
Product Type | Slewing Beraing |
Inside Diameter Of Inner Ring | 178.324″ |
Outside Diameter Of Outer Ring | 197.63″ |
Internal Diameter On Outer Ring | 185.18″ |
External Diameter On Inner Ring | 189.356″ |
Height Of Overall Bearing Assembly | 7.21″ |
Height Of Inner Ring | 6.58″ |
Height Of Outer Ring | 5.24″ |
Bolt Size | 1.3″ |
Bolt Circle In Inner Ring | 181.161″ |
Bolt Circle In Outer Ring | 191.169″ |
Size Holes In Inner Ring | 1.418″ |
Size Holes In Outer Ring | 1.418″ |
Number Holes In Inner Ring | 76 |
Number Holes In Outer Ring | 76 |
Pitch Diameter Of Gear | 195.424″ |
Module | 20 |
Number Of Gear Teeth | 248 |
Permissible Tooth Forces T | 52042.5 lbs |
Max Gear Tooth Load Fz | 104085 lbs |
Basic Static Load Rating(C0a) | 10790880 lbs |
Moment Load Rating | 22495580 ft-lbs |
Correspond | FIG1 |
Tooth Width | 5.24″ |
Ring Material | 42CRO or 50MN |
Ball Materrial | Chrome Steel |
Cage Material | Nylon or 300 Series Stainless Steel |
Seal Material | NBR |
RoHS | Compliant |
Weight | 3796 Kg |
Diameter Of Bearing Raceway | 187.15″ |
Number Of Grease Nipples | 14 |
Distance Between Bottom Outer Ring/Inner Ring | 0.63″ |
Distance at top Outer Ring/Inner Ring | 1.97″ |

121.40.4750.990.41.1502
Design Features of 121.40.4750.990.41.1502 Bearing
The design feature of a 121.40.4750.990.41.1502 is its integration of both radial and axial load-bearing capabilities, allowing it to handle complex load conditions. 121.40.4750.990.41.1502 inside diameter of inner ring is 178.324″. Its outside diameter of outer ring is 197.63″. It also combines the characteristics of both ball and roller bearings for enhanced performance in compact spaces.
What Benefits Can 121.40.4750.990.41.1502 Bearing Provide?
- Space Efficiency: They reduce the need for separate gear systems, saving space.
- Cost-Effective: By combining components, they reduce manufacturing costs.
- Improved Performance: They provide smooth, reliable rotation for applications like cranes, conveyors, and heavy machinery.
- Durability: The design allows for better load distribution, increasing the lifespan of the bearing.
- Flexibility: They work in both directions, offering more versatile use in different machinery.
What Can 121.40.4750.990.41.1502 Bearing Be Used for?
- Excavators and cranes: for smooth rotation and high load-bearing capacity.
- Wind turbines: to allow the rotor to rotate and adjust for optimal wind direction.
- Robotic arms: to provide precise movement while supporting heavy loads.
- Solar tracking systems: to follow the sun’s position for better energy efficiency.
- Turntables: in various machinery where rotation with high load-bearing is required.