
SKF H 304 E adapter sleeve
- Brand
- SKF
- Category
- Bushings and sleeves
- Subcategory
- Adapter sleeve
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Description
SKF H 304 E belongs to adapter sleeve, part of our Bushings and sleeves range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for H 304 E and any equivalents.
For mounting bearings with a tapered bore onto cylindrical shafts, the SKF H series adapter sleeve is a practical solution. Used with a lock nut and lock washer, it holds the bearing in position and simplifies assembly and disassembly without damaging the shaft. MR Industrial Accessories LLC supplies this series.
Reading the H series designation is straightforward: the H stands for adapter sleeve, and the number that follows indicates the shaft diameter it fits. For instance, H 311 E is for a 50 mm shaft, H 312 E for 55 mm, and H 313 E for 60 mm. The E suffix means the sleeve has metric threads and meets current standards. These sleeves come with a nut and lock washer, which makes installation easier.
Common applications include power transmission equipment such as gearboxes, conveyors, mills, pumps, and fans. They are also chosen when the axial position of the bearing needs adjustment or when replacement should be possible without dismantling the entire assembly. Industries like food processing, cement, mining, and chemical handling rely on these sleeves for their robust construction and simple mounting.
To select the correct sleeve, confirm that the shaft diameter matches the series number and that the bearing has a tapered bore with the same taper. During assembly, clean the surfaces, apply the recommended lubricant, and tighten the nut with the necessary force to achieve the correct internal clearance. The lock washer keeps the nut from loosening under vibration. Proper alignment helps extend bearing service life.
SKF H series sleeves are interchangeable with those from other brands that follow the same standard. Always check dimensions and thread before replacing. At MR Industrial Accessories LLC, we supply SKF and offer technical advice to help you choose the right sleeve for your application.
Dimensions
Dimensions and tolerances: Message us the part number on WhatsApp and we'll verify its dimensions and version with the manufacturer's datasheet.
Frequently asked questions
- What does the E suffix mean in SKF H series sleeves?
- The E suffix indicates that the sleeve has a metric thread and complies with current specifications. Verify that the bearing and nut are compatible with this type of thread.
- How do I choose the right sleeve for my shaft?
- Measure the shaft diameter and select the corresponding series number. For a 50 mm shaft, you need an H 311 E. Also verify the bearing taper.
- Are SKF H series sleeves compatible with other brands?
- In general, they are interchangeable with those from other brands that follow the same standard. Always confirm dimensions and thread before replacing to avoid assembly issues.

