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SKF QJ 305 MA/C2L four-point angular contact ball bearing, 25mm bore, machined brass cage, C2 clearance. Designed for combined radial and axial loads in both directions, suitable for pumps, gearboxes, and compressors.
MODEL QJ 305 MA/C2L
$211.09 Each
Prices are subject to change
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Returnable:No
Axial Internal Clearance
C2L
Basic Dynamic Load Rating
42.5 kN
Basic Static Load Rating
30 kN
Bearing Material
Bearing steel
Bearing Outer Ring Locating Feature
None
Bore Diameter
25 mm
Cage
Machined metal
Coating
Without
Contact Angle
35.000000000087 °
Contact Type
Four-point contact
Limiting Speed
20000 r/min
Lubricant
None
Matched Arrangement
No
Number of Rows
1
O.D.
62 mm
Pack Height
67 mm
Pack Length
65 mm
Pack Width
22 mm
Relubrication Feature
Without
Ring Type
Two-piece inner ring and one-piece outer ring
Sealing
Without
SKF Performance Class
SKF Explorer
Universal Matching Bearing
No
Width
17 mm
Four-point contact ball bearing
Four-point contact ball bearings can accommodate high axial loads in both directions and small radial loads. They can operate at very high speeds and are more suitable than deep groove ball bearings for supporting large axial forces. The outer ring, with ball and cage assembly, can be mounted separately from the two inner ring halves.
- High-speed capability
- Accommodate high axial loads in both directions and small radial loads
- Require considerably less axial space than double row angular contact 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.
| Brand | Boston Gear |
| Model | SSHF7210B-30KC-B5-HS1-P19 |
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