We never sell your data to third parties
Koyo 5309 double-row angular contact ball bearing with a 45 mm bore, 100 mm outside diameter, and 39.7 mm width. Open type design with straight bore. Suitable for applications requiring combined radial and axial loads in both directions.
MODEL 5309
$90.55 Each
Prices are subject to change
FREE SHIPPING ON ORDERS OVER $100
Select Quantity
Typically Ships in: 1 day
Returnable: See conditions
Bore
1.772 in / 45 mm
Brand
KOYO
Contact Angle
24 Degree
Flush Ground
No
Harmonized Tariff Code
8482.10.50.28
Inch - Metric
Metric
Internal Clearance
C0-Medium
Maximum Capacity / Filling Slot
No
Number of Bearings
1 (Single)
Number of Rows of Balls
Double Row
Outside Diameter
3.937 Inch / 100 Millimeter
Precision Class
ABEC 1 / ISO P0
Rolling Element
Ball Bearing
Snap Ring
No
Type
Angular Contact Ball Bearings
UNSPSC
31171531
Width
1.563 Inch / 39.69 Millimeter
| | Bearing No. | 5309 |
| Boundary dimensions(mm) | d | 45 |
| D | 100 | |
| B | 39.7 | |
| r(min) | 1.5 | |
| Basic load ratings(kN) | Cr | 93.8 |
| C0r | 55.7 | |
| Fatigue load limit(kN) | Cu | 2.90 |
| Limiting speeds(min-1) | Grease lub. | 4100 |
| Oil lub. | 5500 | |
| Load center spread(mm) | a | 51.0 |
| Mounting dimensions(mm) | da(min) | 53.5 |
| da(max) | - | |
| Da(max) | 91.5 | |
| ra(max) | 1.5 | |
| (Refer.)Mass(kg) | | 1.42 |
How do I choose the right type of bearing for my application?
Start with the load and how it’s applied. You need to know if you’re dealing with radial loads, axial loads, or a mix of both. Then look at speed, operating environment, and space constraints. For example, ball bearings are great for high speed and lighter loads, while roller bearings handle heavier loads but usually at lower speeds. If there’s contamination, moisture, or heat involved, you may need sealed bearings or specific materials. In most cases, the right choice comes down to matching load type, speed, and environment to the bearing design.
What is the difference between deep groove and angular contact ball bearings?
Deep groove ball bearings are the most common type. They’re designed to handle mainly radial loads, but they can also take some axial load in both directions. They’re simple, versatile, and used in everything from motors to conveyors. Angular contact ball bearings are built for combined loads, especially where there’s significant axial force in one direction. They’re often used in pairs and are common in higher precision or higher load applications like pumps and gearboxes. If your load is mostly radial, go deep groove. If axial load matters more, angular contact is usually the better choice.
#315821
Brand
SKF Bearing
Model
3309 A/C3
#1133147
Brand
MRC Bearing
Model
5309M
#2069102
Brand
SKF Bearing
Model
3309 E/C3
#2889815
Brand
Rollway
Model
3309 C3
#281547
Brand
NTN Bearing
Model
3309C3
#5033062
Brand
NSK Bearings
Model
5309C3
#280999
Brand
NTN Bearing
Model
5309C3
#5033064
Brand
NSK Bearings
Model
5309JC3
| Brand | Edwards |
| Model | AC1914-7 |
| Brand | WILTON |
| Model | 21400 |