33030 23007130E 33030R Chrome Steel 150*225*59mm Single Row Cone and Cup Tapered Roller Bearings

33030 23007130E 33030R Chrome Steel 150*225*59mm Single Row Cone and Cup Tapered Roller Bearings

Engineered to ISO 355/DIN 720 standards with P6-level precision (tolerance class for minimal vibration and misalignment), the dimensions are optimized for extra-large heavy-duty setups where space is constrained but load demands are extreme:
150mm Inner Diameter (ID): Fits ultra-large industrial shafts (tolerance: 0/-0.025mm) and accommodates a minimum 5mm shaft chamfer. The tight ID tolerance ensures a secure interference fit with 60-70kW motor shafts, heavy CNC spindle shafts, or mining crusher drive rollers—preventing slippage even under extreme torque surges (e.g., excavator bucket lifting with full ore loads, crusher jaw compression of hard rock).
225mm Outer Diameter (OD): Seamlessly integrates into extra-large machinery housings (compatible with a minimum 4.5mm outer ring chamfer), eliminating the need for oversized enclosures. This is critical for large lathes, industrial water pumps, and medium mining equipment (e.g., ore crushers, coal conveyors) where space constraints prevent the use of bulkier heavy-duty bearings.
59mm Width: Provides an enhanced contact area (≈32% larger than narrower bearings of similar ID/OD) for radial-axial load distribution while avoiding space waste. The increased width ensures even load transfer across raceways, making it ideal for industrial vibrating screens (for mineral sorting), heavy-duty gearbox input/output shafts, or rolling mill work rolls.
CNC grinding (with a precision of ±0.004mm) guarantees dimensional consistency across batches, eliminating fit gaps that cause 96-99% efficiency loss in misaligned extra-large heavy-duty bearings.

The Shipping Way We Use

We use the main delivery companies are as below

We normally will dispatch your order within 2-7 working days depends on stock level, as soon as the order is shipped, we will list the tracking number on your order detail page, if there is any problem regarding to the shipping, please feel free to contact us. 

Below shows the estimate delivery time for different courier:

- DHL: 10-14 working days 
- FedEx: 7 to 10 working days 
- UPS: 7 to 10 working days 
- EMS: 10-14 working days