| Bearing number |
6311 |
| Size (mm) |
55x120x29 |
| Bore Diameter (mm) |
55 |
| Outer Diameter (mm) |
120 |
| Width (mm) |
29 |
| d |
55 mm |
| D |
120 mm |
| B |
29 mm |
| C |
29 mm |
| r min. |
2 mm |
| da min. |
64 mm |
| da max |
74 mm |
| Da max. |
111 mm |
| ra max. |
2 mm |
| Weight |
1,37 Kg |
| Basic dynamic load rating (C) |
71,5 kN |
| Basic static load rating (C0) |
45 kN |
| (Grease) Lubrication Speed |
5 800 r/min |
| (Oil) Lubrication Speed |
6 800 r/min |
| rs min |
2 mm |
| Radial clearance class |
CN |
| Mass |
1.37 kg |
| Dynamic load, C |
71.5 kN |
| Static load, C0 |
45 kN |
| Fatigue limit load, Cu |
2.05 kN |
| f0 |
13.2 |
| Nlim (oil) |
6,800 rpm |
| Nlim (grease) |
5,800 rpm |
| Min operating temperature, Tmin |
-20 °C |
| Max operating temperature, Tmax |
120 °C |
| Characteristic cage frequency, FTF |
0.38 Hz |
| Characteristic rolling element frequency, BSF |
4.08 Hz |
| Characteristic outer ring frequency, BPF0 |
3.07 Hz |
| Characteristic inner ring frequency, BPFI |
4.93 Hz |
| da min |
64 mm |
| Da max |
111 mm |
| ra max |
2 mm |
| Category |
Single Row Ball Bearing |
| Inventory |
0.0 |
| Minimum Buy Quantity |
N/A |
| Weight / Kilogram |
1.341 |
| Product Group |
B00308 |
| Enclosure |
Open |
| Precision Class |
ABEC 1 | ISO P0 |
| Maximum Capacity / Filling Slot |
No |
| Rolling Element |
Ball Bearing |
| Snap Ring |
No |
| Internal Special Features |
No |
| Cage Material |
Steel |
| Internal Clearance |
C0-Medium |
| Inch - Metric |
Metric |
| Long Description |
55MM Bore; 120MM Outside Diameter; 29MM Outer Race Width; Open; Ball Bearing; ABEC 1 | ISO P0; No Filling Slot; No Snap Ring; No Internal Special Features; C0-Medium Internal Clearance; Steel Cage |
| Other Features |
Deep Groove |
| UNSPSC |
31171504 |
| Harmonized Tariff Code |
8482.10.50.68 |
| Noun |
Bearing |
| Keyword String |
Ball |
| Manufacturer Item Number |
6311 |
| Weight / LBS |
3.02 |
| Outside Diameter |
4.724 Inch | 120 Millimeter |
| Bore |
2.165 Inch | 55 Millimeter |
| Outer Race Width |
1.142 Inch | 29 Millimeter |
| Inner Race Width |
0 Inch | 0 Millimeter |
| bore diameter: |
55 mm |
| finish/coating: |
Uncoated |
| outside diameter: |
120 mm |
| bearing material: |
High Carbon Chrome Steel |
| overall width: |
29 mm |
| cage material: |
Steel |
| bore type: |
Round |
| inner ring width: |
29 mm |
| closure type: |
Open |
| outer ring width: |
29 mm |
| row type & fill slot: |
Single Row Non-Fill Slot |
| maximum rpm (grease): |
5800 rpm |
| snap ring included: |
Without Snap Ring |
| maximum rpm (oil): |
6800 rpm |
| internal clearance: |
CN |
| fillet radius: |
2 mm |
| operating temperature range: |
-40 to 120 ºC |
| maximum rpm: |
6800 RPM |
| dynamic load capacity: |
71500 N |
| series: |
63 |
| static load capacity: |
45000 N |
| manufacturer product page: |
Click here |
| precision rating: |
Class 0 |