DBH 1236/85 radial shaft seal — 41 x 53 x 8/10.5
- Brand
- DBH
- Category
- Seals
- Subcategory
- Radial shaft seals
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Description
DBH 1236/85 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 1236/85 and any equivalents.
When a gearbox, pump or motor starts weeping oil around the shaft, the DBH 1236/85 is one of the seals maintenance crews reach for. It is a single-lip radial shaft seal that presses into the housing and rides on the rotating shaft, holding lubricant in and keeping dust and water out. The A 090 lip and spring geometry is built for continuously lubricated shafts, and the stepped 8.00/10.50 mm height fits spots where there is not much room to work with. MR Industrial Accessories supplies it as part of its seals and oil seals line.
Reading the code helps you match it to the bore. The 1236/85 designation pairs with a 41 mm shaft and a 53 mm housing bore. The height is listed as 8.00/10.50 mm because the profile is stepped: the lip sits in the shorter section while the outer case fills the taller one. That two-level shape is what lets the seal work in a shallow, machined pocket.
You will find this size in gearboxes, speed reducers, centrifugal pumps, electric motors and other power transmission equipment, as well as in rollers and machine tool spindles where lubricant has to stay put. Before fitting a new one, look at the sealing track on the shaft. Grooves, scoring or a visible wear step will eat a fresh lip quickly, and a wear sleeve may be the better route.
Installation is straightforward but unforgiving. Wipe the bore and shaft clean, coat the lip with the same oil or grease the equipment runs, then press the seal in square until it bottoms out. Never hammer the lip or let it cock in the bore. When you pick a replacement, confirm four things: shaft diameter, housing diameter, the height you have available and the fluid being sealed. If the axial space is generous, a standard height seal may work instead of the stepped version.
Need a different size or a cross-reference? Send the code 1236/85 together with your shaft, housing and height measurements, plus a photo of the old seal if you have one. From there we can search the DBH line or another brand we carry for a match.
Dimensions
- Shaft (d)
- 41mm
- Housing bore (D)
- 53mm
- Height (h)
- 8.00/10.50mm
- Design
- A 090
Frequently asked questions
- What size shaft and housing does the DBH 1236/85 fit?
- It fits a 41 mm shaft and a 53 mm housing bore, with a stepped height of 8.00/10.50 mm. Measure your old seal and the bore before ordering to confirm the match.
- Can this seal handle high shaft speeds?
- It is a standard radial shaft seal for lubricated rotating shafts. What speed it can take depends on the lip material, the fluid and the operating temperature. Share your equipment details and we can help you confirm.
- How do I ask for an equivalent seal?
- Send the code 1236/85 along with the shaft, housing and height dimensions and the fluid being sealed, either on WhatsApp or by email. With that information we can look for a compatible alternative among the brands we supply.