NSK 5311 bearings

5311, NSK, Double-row angular contact ball bearings

Measurement system: Metric
Bore diameter: 55.000 mm
Outside diameter: 120.000 mm
Width: 49.200 mm
Cr: 105000 N
C0r: 73000 N
Limiting speed: 5000 r/min
Net weight: 2.3 kg
Number of rows: 2
Contact angle deg: 25
Sealing: Without
Cage: Steel sheet metal
Bearing material: Steel
Rolling material: Steel
Tolerance class: Normal (PN)
Internal clearance: CN
Lubricant in bearing: None
Relubrication feature: Without

In stock

Technical specification for NSK 5311

NSK 5311
Boundary Dimensions
Parts Number	5311
Brand	NSK
Cage	Pressed steel
Description	Double-Row Angular Contact Ball Bearings
d	55 mm	Bore diameter
D	120 mm	Outside diameter
B	49.2 mm	Width
r min.	2 mm	Chamfer Dimension
Basic Load Ratings
Cr	105000 N	Basic Dynamic Load Rating
C0r	73000 N	Basic Static Load Rating
Speeds
Grease	3800 min^-1	Grease lubrication
Oil	5000 min^-1	Oil-bath lubrication
Dimensions
a0	60.6 mm	Load center spacings
Abutment and Fillet Dimensions
da min.	65 mm	Diameter of Shaft Abutment
Da max.	110 mm	Diameter of Housing Abutment
ra max.	2 mm	Radius of Shaft or Housing Fillet
Mass
Weight	2.3 kg (approx.)

5311, NSK, double-row angular contact ball bearings, Bore diameter: 55 mm; Outside diameter 120 mm; Width 49.2 mm.

NSK 5311 bearing is basically a back-to-back of two single-row angular contact ball bearings, but their inner and outer rings are each integrated into one. So axial loads in both directions can be sustained, and the capacity to sustain moments is good.

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