305-2ZNR

Single row deep groove ball bearings with filling slots, a snap ring, and shields on one or both sides, accommodate more balls than standard deep groove ball bearings. They are of a simple, yet versatile, design and are robust in operation, requiring little maintenance. They can accommodate radial and axial loads in both directions. They have a higher radial load carrying capacity than the corresponding bearings without filling slots but have a limited axial load carrying capacity due to the filling slots. The snap ring, fitted in an annular groove in the outer ring, facilitates axial location of the bearings within their housings. The integral sealing can significantly prolong bearing service life because it keeps lubricant in the bearings and contaminants out.

SKU: 305-2ZNR
ID:653101

Description

Display in:
Dimensions - 305-2ZNR

Dimensions

d
25 mm
Bore diameter
D
62 mm
Outside diameter
B
17 mm
Width
d1
36.6 mm
Shoulder diameter
D2
52.7 mm
Recess diameter
D3
59.61 mm
Diameter of snap ring groove
D4
67.7 mm
Outside diameter of snap ring
b
1.9 mm
Width of snap ring groove
C
3.28 mm
Distance outer ring from side face to snap ring groove
f
1.7 mm
Width of snap ring
r0
max. 0.6 mm
Bottom radius of snap ring groove
r1,2
min. 1.1 mm
Chamfer dimension
Abutment dimensions - 305-2ZNR

Abutment dimensions

da
min. 32 mm
Diameter of shaft abutment
da
max. 32.7 mm
Diameter of shaft abutment
Da
max. 55 mm
Diameter of housing abutment
Db
min. 69 mm
Diameter of snap ring recess in the housing
ba
min. 2.2 mm
Width of snap ring recess in the housing
Ca
max. 4.98 mm
Distance from outer ring side face to snap ring back face
ra
max. 1 mm
Radius of shaft or housing fillet

Calculation data

Basic dynamic load rating C
22.9 kN
Basic static load rating C0
15.6 kN
Fatigue load limit Pu
0.67 kN
Reference speed
20 000 r/min
Limiting speed
10 400 r/min
Minimum load factor kr
0.05

Mass

Mass bearing
0.24 kg

Included products

Snap ring
SP 62

Tolerance class

Dimensional tolerances
Normal
Radial run-out
Normal

 

305-2ZNR_20221110

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