DBH 8228 radial shaft seal — 30 x 40 x 7
- Brand
- DBH
- Category
- Seals
- Subcategory
- Radial shaft seals
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Description
DBH 8228 belongs to radial shaft seal, part of our Seals range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for 8228 and any equivalents.
The DBH 8228 is a single-lip radial shaft seal sized for a 30 mm shaft. It keeps lubricant where it belongs and blocks dust, water and other contaminants from reaching the bearing cavity. You will find it in motors, pumps, gearboxes and similar rotating equipment, where it works continuously with a 40 mm housing bore and a 7 mm width.
In the DBH code, the Lx designation tells you the seal has a sealing lip backed by a stainless steel spring that maintains steady pressure against the shaft. The dimensions to check before ordering are shaft 30.00 mm (d), housing 40.00 mm (D) and height 7.00 mm (h). That envelope fits many spots where axial room is tight but oil or grease still has to be held back.
You will see this seal in electric motors, centrifugal pumps, speed reducers, gearboxes and conveyor rollers. In each case it shields bearings and internal parts from incoming particles, which helps the equipment last. Selection should account for the operating temperature, shaft speed and the lubricant in use.
Before pressing the seal in, make sure the shaft and housing are clean and free of burrs. Coat the lip with the same oil or grease the machine will run on. Use a press or a proper installation tool and apply force evenly on the outer diameter. Never strike the seal directly, because a damaged lip will leak early.
If you need other dimensions or a cross-reference from a different brand, send the code 8228 and the original seal's dimensions on WhatsApp or by email. Our team can locate a replacement that meets the same requirements and will help you confirm the right choice. MR Industrial Accessories LLC serves customers throughout the United States and in several Latin American countries.
MR supplies the DBH brand within its seals and oil seals line. For a quote, just message the code 8228 and we will respond promptly.
Dimensions
- Shaft (d)
- 30mm
- Housing bore (D)
- 40mm
- Height (h)
- 7.00mm
- Design
- Lx
Frequently asked questions
- What is the Lx design on this oil seal?
- It means the seal has a sealing lip with a metal spring that keeps uniform pressure on the shaft. It suits rotating shaft applications and needs proper lubrication to work well.
- Can another brand's oil seal be replaced with the DBH 8228?
- Yes, if the shaft, housing and height dimensions are the same. The DBH 8228 matches 30x40x7 mm seals from other makers. Contact us on WhatsApp to confirm the exact equivalence for your equipment.
- How do I install the oil seal to avoid leaks?
- Clean the shaft and housing, lubricate the lip with compatible oil or grease, and press the seal in squarely and evenly. Use a suitable tool so the lip is not damaged. If anything is unclear, get in touch.