Heavy Duty Single Row Angular Contact Ball Bearing With 55 mm Bore 100 mm Outer Diameter And 21 mm Width Featuring Slick 40 Degree Contact Angle Open Setup For Crushing Massive Loads And Rock Hard Shop Reliability

Tight angular contact ball bearing for CNC spindle repair
✔️ 55mm inner 100mm outer span 21mm wide 40 degree angle ABEC 1

You get a single precision angular contact ball bearing ready for tough shop work. This open assembly takes heavy one-way thrust and side loads without breaking stride. You can press it straight into pump housings, compressor crankcases, or gearbox setups for reliable power routing.

✅ 40 degree ramp sends direct push force through hardened chrome rings
✅ Reinforced nylon cage stops metal balls from knocking together
✅ Standard clearance gaps handle temperature swings without binding
✅ Tight manufacturing stamps keep spin smooth at common RPM ranges

💡 Why is an angular contact bearing handy for mixed load drive assemblies?
That simple geometry does the heavy lifting when forces push in opposite directions.
- A steep ball track channels sideways pressure straight into the inner raceway
- Ground ring surfaces keep shaft alignment locked even during sudden torque shifts
- Open seal layout gives you clean access when refreshing factory grease supplies
- Standard gap sizing absorbs motor heat fast without trapping hot build-up