NNU4921S.M.P53 Bore 105 Mm, Cylindrical Roller Bearings, Double Row For Work Rolls, Solid Brass Cage
The NNU4921S.M.P53 Rolling mill bearings are mainly suitable for applications such as floating ends that bear medium to heavy radial loads and need to accommodate shaft thermal expansion, or roll necks that need to bear combined radial and axial loads, as well as gear drives.
The NNU4921S.M.P53 bearing is a Cylindrical Roller Bearings, double row for work rolls with an inner diameter of 105 mm , an outer diameter of 145 mm, a width of 40 mm. It typically uses P5 = (ISO Class 5 / ABEC-5) grade precision tolerances and Bearing steel rings, Bearing steel rolling mlement. It primarily bears Radial, Its dynamic radial rated load is approximately 129000 N, its static radial rated load is approximately 260000 N. It uses C3 standard radial clearance, Open type, together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.
NNU4921S.M.P53 bearings ( 105 mm x 145 mm x 40 mm) have the advantages of Extremely high load-bearing capacity and rigidity, and are therefore widely used in the Hot rolling, cold rolling, and wire rod mills.
| Part Number | NNU4921S.M.P53 |
| Interchangeable | FAG NNU4921S.M.P53 |
| Cage | M = Solid brass cage, guided by rollers |
| Radial internal clearance | C3 |
| Seal | Open |
| Bearing Type | Cylindrical Roller Bearings, double row for work rolls |
| Design type | NNU |
| Lubrication | S = Lubrication groove and lubrication holes in outer ring |
| Bearing Weight [lb] | 4.321 |
| d φ Inside [inch] | 4.134 |
| D Φ Outside [inch] | 5.709 |
| B Width [inch] | 1.575 |
| F Raceway diameter inner ring [inch] | 4.646 |
| rs min Chamfer | 1.1 mm |
| Cr Radial Dynamic [lbf] | 28999 |
| C0r Radial Static [lbf] | 58448 |
| D1 max [inch] | 4.606 |
| D4 max [inch] | 5.472 |
| rg max Fillet radius [inch] | 0.039 |
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