DBH 8740 radial shaft seal — 32 x 42 x 7
- Brand
- DBH
- Category
- Seals
- Subcategory
- Radial shaft seals
We reply promptly.
Tell us the quantity you need and request a quote by WhatsApp or email.
Can't find the exact model? Tell us the part number or model you need. We'll track it down and quote it, whether or not it appears in our catalog.
Description
DBH 8740 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 8740 and any equivalents.
The DBH 8740 is a single-lip radial shaft seal built for rotating shafts. Its three key measurements are a 32 mm shaft diameter, a 42 mm housing bore and a 7 mm height. You will find it holding lubricant in and keeping dirt out on gearboxes, pumps, electric motors and other power transmission equipment. The Mx lip design and oil-resistant elastomer suit steady duty in ordinary plant conditions.
The code breaks down simply: DBH is the brand, 8740 is the item reference, and the numbers after it describe the fit. Shaft 32.00 mm, housing 42.00 mm, height 7.00 mm. The Mx configuration means a single sealing lip with a spring, made for rotating shafts running on oil or grease. MR supplies this seal as a DBH product with origin traceability.
Where it shows up: gearbox input and output shafts, centrifugal pumps, electric motors, conveyor rollers and general transmission assemblies. In every case the job is the same, keeping oil in and keeping dust, water and particles out. Treat it as a wear part and swap it once you see leaking or hear unusual noise from the assembly.
Before fitting, check the shaft against the stated size and make sure the surface is clean, with no burrs or scratches. Put a light film of lubricant on the lip, then press the seal in with a proper driver so the lip is not rolled or cut. Shaft speed, running temperature and the lubricant in use all affect which seal is right for the job, so share your equipment data if you are unsure.
Need a replacement or a cross-reference? Send code 8740 or the measurements of the seal you are pulling out, and we will look at other brands or series with comparable characteristics. A photo of the housing and shaft helps too. MR also manufactures split plummer block housings, roller chains and sheaves; this oil seal, however, is a DBH brand item.
Dimensions
- Shaft (d)
- 32mm
- Housing bore (D)
- 42mm
- Height (h)
- 7.00mm
- Design
- Mx
Frequently asked questions
- What size is the DBH 8740 oil seal?
- Shaft 32.00 mm, housing 42.00 mm, height 7.00 mm. Those are the nominal figures and they line up with the 8740 reference.
- Which shafts can this seal run on?
- It is a radial shaft seal for rotating shafts lubricated with oil or grease, used in gearboxes, pumps, motors and transmission equipment. It is not intended for shafts with large axial movement or for high-pressure service.
- How do I ask for a quote or an equivalent?
- Message us on WhatsApp with code 8740 or your seal measurements. If the same item is not available, we search for a compatible alternative, including other brands or similar series.