NN 3022 TN9/SPW33

Super-precision double row cylindrical roller bearing with lubrication feature

Super-precision double row cylindrical roller bearings in the NN 30 series provide a unique balance between load carrying capacity, rigidity and speed.

Having three flanges on the inner ring and no flanges on the outer ring, the bearings can accommodate axial displacement in both directions. The separable design simplifies mounting and dismounting, particularly when load conditions require both rings to have an interference fit.

  • Very high radial load carrying capacity
  • High rigidity and high running accuracy
  • Minimize noise, vibration and heat generation
  • Accommodate axial displacement in both directions
  • Lubrication feature

Dimensions

d
110 mm
 Bore diameter
D
170 mm
 Outside diameter
B
45 mm
 Width
d1
132.6 mm
 Shoulder diameter inner ring (NN design)
E
155 mm
 Raceway diameter outer ring (NN design)
b
5.5 mm
 Width annular lubrication groove at outer ring
K
3 mm
 Diameter lubrication hole (outer ring)
r1,2
min.2 mm
 Chamfer dimension outer ring
s
max.3 mm
 Permissible axial displacement from the normal position of one bearing ring relative to the other (all)
Abutment dimensions - NN 3022 TN9/SPW33

Abutment dimensions

da
min.120 mm
 Abutment diameter shaft
Da
min.157 mm
 Abutment diameter housing
Da
max.160 mm
 Abutment diameter housing
ra
max.2 mm
 Fillet radius
dn
152.8 mm
 Oil nozzle position (not for variants with TNHA cage)

Calculation data

Basic dynamic load rating C
220 kN
Basic static load rating C0
360 kN
Fatigue load limit Pu
41.5 kN
Attainable speed for grease lubrication
5 000 r/min
Attainable speed for oil-air lubrication
5 600 r/min
Reference grease quantity Gref
20.2 cm³
Static radial stiffness (guideline value)
2 470 N/µm
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SKU: NN 3022 TN9/SPW33-SKF Categories: , , ,
SKF

Description

Properties

Bearing part Complete bearing
Number of rows 2
Bore type Cylindrical
Cage Non-metallic
Design NN
Number of flanges, outer ring 0
Number of flanges, inner ring 3
Loose flange None
Radial internal clearance C1
Tolerance class Class SP (SP)
Material, bearing Bearing steel
Coating Without
Sealing Without
Lubricant None
Relubrication feature Annular groove and lubrication holes
Indicative carbon footprint for new product 12.9 kg CO2e
Bore type
Cylindrical

Logistics

Product net weight 3.58 kg
eClass code 23-05-09-01
UNSPSC code 31171505

(110X170X45) (NN3022TN9SPW33)

Additional information

Weight 3.58 kg
Size (mm)

Colour

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