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  3. NNU double row cylindrical roller bearing
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Deep groove ball bearing
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inch series
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cylindrical roller bearing
L type retaining ring of single row cylindrical roller bearing
NN double row cylindrical roller bearing
NNU double row cylindrical roller bearing
Taper roller bearing
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Spherical roller bearing
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SN5, SN6
SN5, SN6, SN31
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SD5, sd30s and sd31d
Reducing type, sn2c type, sn3c type
Sd2c, sd3c
Cylindrical roller bearing for pulley
RS48、RS49、RSF48、RSF49
RS50 type
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HNL for nut withdrawal sleeve of rolling bearing
Washer for rolling bearing
Needle bearing
Needle roller and cage assembly
Punched and sealed outer ring needle roller bearings
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needle bearing
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Thrust needle roller and cage assembly, thrust bearing washer
Outer spherical ball bearing with seat
Outer spherical ball bearing with vertical seat UCP type
Outer spherical ball bearing with vertical seat UKP + H type
Square outer spherical ball bearing with Lutai UCF type
Super precision bearing
High precision cylindrical roller bearing
N19
High precision angular contact ball bearing
Preload and stiffness
PDFDownload Online Inquiry
  • Bearing code
    Cylindrical hole NNU4944
    Conical hole NNU4944K
  • Overall dimension (mm)
    d 220
    D 300
    B 80
    r(min) 2.1
    Fw 243
  • Limit speed (RPM)
    grease 1700
    Oil lubrication 2200
  • Rated load (n)
    Cr 600000
    Cor 1330000
  • Mounting dimensions
    da(2)(min) 231
    da(2)(max) 242
    d1a(min) 234
    dc(min) 248
    Da(max) 289
    ra(max) 2
  • (Reference) 16.6

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