There are several kinds of material of 51144M. Hybrid 51144M with steel rings and ceramic balls.

Full 51144M bearings can be made in silicon nitride, zirconia or silicon carbide, three kinds in total. You can find those ceramic materials' characteristic at ceramic materials and their properties.




Bore Dia (d) 220
Dimension d1 223
Outer Dia (D) 270
Dimension D1 267
Height (H) 37
Bearing Material Silicon Nitride, Zirconia, Silicon Carbide and Steel are available
Cage Material PEEK, PEFT, Nylon, Stainless Steel, Full Complement are available
Lubrication Grease, Oil, Dry are available
Temp. Range -800 Degrees to +2200 Degrees F
Dynamic Load Rating (Cr) (Newtons) 126700
Static Load Rating (Cor) (Newtons) 532000
Max Speed (X1000 RPM) 1.5
Ball Qty
Ball Dia (Dw)
Weight (g) 3198
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