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  • NA 49 Series | KG Bearing
  • NA 49 Series Line Drawing | KG Bearing

NA 49 Series NA4944

Technical Details

Bore Diameter (mm) d Outer Diameter (mm) D Width (mm) B Weight (Kg)
220 300 16.7

Needle roller bearings NA4944 have a long record of accomplishment as proven machine elements for the design of radially compact bearing arrangements with very high load-carrying capacity. Needle roller bearings with an inner ring are used for applications where the shaft cannot be hardened and ground. The permissible axial displacement of the shaft relative to the housing is limited for bearings with an inner ring. If the permissible axial displacement provided by a standard inner ring is insufficient, it is possible to use an extended inner ring.

Applications and industry: AGRICULTUREAUTOMOTIVECEMENT INDUSTRYCRUSHER INDUSTRYHEAVY MACHINERY EQUIPMENTSHOME APPLIANCESMINING SECTORMETAL INDUSTRYFLUID MACHINERYTEXTILE INDUSTRY

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Bearing Number Inner Diameter (d) MM Outer Diameter (D) MM C fw Basic Load Rating (N) Dyn. C Basic Load Rating (N) Stat. C0 Limiting Speed Weight (KG)
NA4944 220 300 80 245 420000 1016000 1280 16.7
NA4948 240 320 80 265 432000 1080000 1200 18
NA4952 260 360 100 290 644000 1520000 1120 31.1
NA4956 280 380 100 310 668000 1624000 1040 33.1
NA4960 300 420 118 340 864000 2112000 960 51.4
NA4964 320 440 118 360 896000 2256000 880 54.4
NA4968 340 460 118 380 928000 2400000 880 57.3
NA4972 360 480 118 400 960000 2560000 800 60.2
NA4976 380 520 140 430 1120000 3000000 760 90.3
NA4980 400 540 140 450 1160000 3200000 720 94.4
NA4984 420 560 140 470 1200000 3400000 680 98.5
NA4988 440 600 160 490 1400000 3680000 640 131