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SKF W 628/4-2Z is a 4mm bore deep groove ball bearing with steel shields on both sides. It features a pressed steel cage and is designed for light radial loads in compact applications such as small electric motors, instruments, and hand tools.
MODEL W 628/4-2Z
$12.47 Each
Prices are subject to change
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Typically Ships in: 1 day
Returnable: See conditions
Bearing Material
Stainless steel
Bearing Outer Ring Locating Feature
None
Bore Type
Cylindrical
Cage
Sheet metal
Coating
Without
Filling Slots
Without
Lubricant
Grease
Matched Arrangement
No
Number of Rows
1
Pack Height
60 mm
Pack Length
60 mm
Pack Width
9 mm
Radial Internal Clearance
CN
Relubrication Feature
Without
Sealing
Shield on both sides
Sealing Type
Non-contact
Tolerance Class
Normal
Width
3.5 mm
Stainless steel single row deep groove ball bearing with seals or shields on both sides, provide greater chemical and corrosion resistance. As with deep groove ball bearings generally, they 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 other bearing types. The integral sealing can significantly prolong bearing service life because it keeps lubricant in the bearings and contaminants out.
- Greater chemical and corrosion resistance
- Integral sealing prolongs bearing service life
- Typical benefits of single row deep groove ball bearings
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.
After greasing, the bearing is ready to be reinstalled. If you are not immediately installing the bearing, make sure it is properly protected in a waterproof wrapper and stored in a safe location.
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| Brand | Fibox |
| Model | P 252612 |
Disclaimer: The return policy information shown below is merely an excerpt from SKF's General Conditions of Sale.
RETURN OF GOODS FOR CREDIT
Goods will not be accepted for return without prior written approval from SKF. The return freight must be prepaid by the Buyer. Unless return of Goods is due to Supplier error, Goods returned will be subject to a credit service fee of $25.00 or 15% of the credit value, whichever is greater. An additional service fee may apply is further inspection is required at the discretion of SKF