Bore Size
Outside Size
Width Size

628-2RS Miniature Ball Bearing 8x24x8 Sealed MR628-2RS

Write a review
628-2RS
$3.50
Our quantity discounts:
Quantity
10+
25+
50+
Price
$3.33
$3.15
$2.98
In stock ready to ship
25 days

628-2RS Miniature Ball Bearing

Key Features

628-2RS is a Miniature Ball Bearing manufactured with Rubber Seals on both sides and is pre-lubricated with grease allowing it to be ready for use upon delivery. Our 620 Series Mini Ball Bearings have a Larger Outer Diameter to be used in High Speed & Larger Load Capacity Applications

Match Numbers / Interchange Numbers

628RS, 628DDU, 628LLU, 628VV, 628LLB, 628-2RU, MR628-2RS, 628.2RS1

Applications / Industries

628-2RS Miniature ball bearings are used in a wide variety of applications such as Fan Motors, Wipers, Throttles, Industrial, Household Electrical Appliances, Medical Equipment, Robotics, Lab Equipment, RC Cars, RC Planes, RC Helicopters, among others.

What are Miniature Ball Bearings?

A Miniature Ball Bearing is a type of small rolling-element bearing that uses roller balls to separate two “races,” or bearing rings. The key difference between these bearings and many others would be their small size, allowing them to be applied in smaller and tighter lightweight applications. The combination of the roller balls and bearing rings help to reduce surface contact and rotational friction across moving planes to accommodate axial loads.

Miniature Ball bearings help to facilitate motion by distributing loads and reducing friction for applications that have a high-speed requirement, ultimately aiding in extending the working life of your equipment while also effectively saving space in tight applications.

What are Rolling-Element Bearings?

Rolling-element bearings, commonly called rolling bearings, are bearings that carry a load by utilizing “rolling elements” between two concentric, grooved rings called races. The motion of the bearing races allows for the rolling elements to move with very little resistance and with little slide variance.

Some common types of rolling elements include ball, cylindrical, spherical, barrel, needle, spindle, or tapered.

What is the Difference Between Open, Shielded, and Sealed Rolling Bearings? 

The main difference between open and sealed/ shielded bearings is the application of lubrication. The main difference between sealed and shielded bearings is the presence of a protective enclosure.

  • Sealed and shielded bearings are lubricated with grease in the bearing factory. However, a rubber sealed bearing protects the bearing by using a seal that contacts the inner and outer race. This provides superior protection at the cost of operating speed and temperature.
  • Open bearings are meant to be lubricated with light oil, with periodic reapplication of lubrication, based on use.
  • Shielded rolling bearings contain an enclosure that helps to protect the working parts of the bearing from environmental debris that may be introduced and would otherwise reduce the ball bearing speed and lifespan. This metal shield is stamped onto the bearing and only contacts the outer ring, this allows for protection without sacrificing operating speed or temperature.
CATALOG
Online Catalog:
Dimensions & Material
Inner Diameter:
8mm
Outer Diameter:
24mm
Width:
8mm
Lubrication:
Chevron SRI-2 Grease
Material:
Chrome Steel SAE-52100
Sizes:
ID: 8mm x OD: 24mm x W: 8mm
Product Details
Closure Type:
2RS Rubber Sealed Both Sides
Grease RPM Limit:
28,000
Oil RPM Limit :
34,000
Static Load Rating:
320 lbf
Dynamic Load Rating:
750 lbf
Interchange Numbers:
628RS, 628DDU, 628LLU, 628VV, 628LLB, 628-2RU, MR628-2RS, 628.2RS1
628-2RS Miniature Ball Bearing 8x24x8 Sealed MR628-2RS

The answer to your request will be sent to your email address.

5 out of 5
Reviews: 1
5 stars
100%
4 stars
0%
3 stars
0%
2 stars
0%
1 star
0%
Todd W
Comment
used it in my power tool it fits perfectly and runs smoothly, I bought same bearing from sears but didn't work more than 3 weeks. this one already worked for 4 months now, so happy found you guys, will be back again.
Possibly you may be interested
Fast and high quality delivery

Our company makes delivery all over the country

Returns within 25 days of delivery

You have 25 days to process a return