NN 3005 K/SP

Super-precision double row cylindrical roller bearing with tapered bore

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. The tapered bore enables accurate adjustment of clearance or preload during mounting.

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

Dimensions

d
25 mm
 Bore diameter
D
47 mm
 Outside diameter
B
16 mm
 Width
d1
33.7 mm
 Shoulder diameter inner ring (NN design)
E
41.3 mm
 Raceway diameter outer ring (NN design)
r1,2
min.0.6 mm
 Chamfer dimension outer ring
r3,4
min.0.3 mm
 Chamfer dimension inner ring (bearing with tapered bore)
s
max.1 mm
 Permissible axial displacement from the normal position of one bearing ring relative to the other (all)
Abutment dimensions - NN 3005 K/SP

Abutment dimensions

da
min.29 mm
 Abutment diameter shaft
Da
min.42 mm
 Abutment diameter housing
Da
max.43 mm
 Abutment diameter housing
ra
max.0.6 mm
 Fillet radius
dn
40.6 mm
 Oil nozzle position (not for variants with TNHA cage)

Calculation data

Basic dynamic load rating C
26 kN
Basic static load rating C0
30 kN
Fatigue load limit Pu
3.15 kN
Attainable speed for grease lubrication
19 000 r/min
Attainable speed for oil-air lubrication
22 000 r/min
Reference grease quantity Gref
0.9 cm³
Static radial stiffness (guideline value)
640 N/µm
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SKU: NN 3005 K/SP-SKF Categories: , , ,
SKF

Description

Properties

Bearing part Complete bearing
Number of rows 2
Bore type Tapered 1:12
Cage Machined metal
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 Without

Logistics

Product net weight 0.118 kg
eClass code 23-05-09-01
UNSPSC code 31171505

(25X47X16) (NN3005KSP)

Additional information

Weight 0.118 kg
Size (mm)

Colour

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