SKF 61821-2RS1 bearings
61821-2RS1 Single row deep groove ball bearing with seals

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SKF deep groove ball bearing with seal on both sides, steel cage
Measurement system
Metric
Bore diameter
105.000 mm
Outside diameter
130.000 mm
Width
13.000 mm
Cr
20800 N
C0r
19600 N
Limiting speed
2800 r/min
Net weight
0.317 kg
Number of rows
1
Sealing
Contact seal on both sides
Cage
Steel sheet
Bearing material
Steel
Rolling material
Steel
Tolerance class
Normal (PN)
Internal clearance
CN
Lubricant in bearing
Grease
Relubrication feature
Without

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Technical specification for SKF 61821-2RS1

SKF 61821-2RS1
Part Number 61821-2RS1
Description Deep groove ball bearing with seals
Cage Sheet metal
Radial internal clearance CN
Number of rows 1
Sealing Contact seal on both sides
Dimensions
d 105.0 mm Bore diameter
tΔdmp -0.02 - 0 mm Deviation limits of mid-range bore diameter
D 130.0 mm Outside diameter
tΔDmp -0.018 - 0 mm Deviation limits of mid-range outside diameter
B 13.0 mm Width
tΔBs -0.2 - 0 mm Deviation limits of ring width
d1 ≈ 112.25 mm Shoulder diameter
D2 ≈ 124.4 mm Recess diameter
r1,2 min. 1.0 mm Chamfer dimension
  Normal ISO tolerance class for dimensions
Abutment Dimensions
da min. 110.0 mm Diameter of shaft abutment
da max. 112.0 mm Diameter of shaft abutment
Da max. 125.0 mm Diameter of housing abutment
ra max. 1.0 mm Radius of shaft or housing fillet
Calculation Data
C 20.8 kN Basic dynamic load rating
C0 19.6 kN Basic static load rating
Pu 1.0 kN Fatigue load limit
  2800.0 r/min Limiting speed
kr 0.015 Minimum load factor
f0 13.2 Calculation factor
Tolerances of run-out
tKia 25.0 µm Range of section height at inner ring of assembled bearing
tKea 40.0 µm Range of section height at outer ring of assembled bearing
  Normal ISO tolerance class for geometrical tolerances
SKF deep groove ball bearing with seal on both sides

61821-2RS1, Single row deep groove ball bearings with seals or shields are particularly versatile, have low friction and are optimized for low noise and low vibration, which enables high rotational speeds. They accommodate radial and axial loads in both directions, are easy to mount, and require less maintenance than many other bearing types. The integral sealing can significantly prolong bearing service life because it keeps lubricant in the bearings and contaminants out.

  • Bore diameter: 105.0 mm
  • Outside diameter: 130.0 mm
  • Width: 13.0 mm
  • Cage: Steel sheet
  • Radial internal clearance: CN
  • ISO tolerance class for dimensions: Normal
  • ISO tolerance class for geometrical tolerances: Normal

 

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