Adapter Sleeves
H312 Adapter Sleeve
55 mm shaft
H312 is an adapter sleeve from the H3 series for a 55 mm shaft. It has an outer diameter (d2) of 80 mm, a sleeve length (B1) of 47 mm, a locknut width (B2) of 13 mm and weighs 0.393 kg. It mounts tapered-bore bearings such as 6312K, 1312K, 2212K, 22212K.
Brands: SKF, FAG, NTN, NBC, DTC, SLS
H312 Specifications
| Shaft Dia. (d1) | 55 mm |
|---|---|
| Sleeve Number | H312 |
| d2 (Outer Dia.) | 80 mm |
| B1 (Sleeve Length) | 47 mm |
| B2 (Locknut Width) | 13 mm |
| Weight | 0.393 kg |
| Series | H3 Series Adapter Sleeves (300 Bore Codes) |
Bearings That Fit the H312
Tapered-bore (K) bearings listed for this sleeve in the selection guide. Confirm the exact bearing number with us before ordering.
Other Sleeves for a 55 mm Shaft
Neighbouring Sizes in the H3 Series
H312 — Frequently Asked Questions
What are the dimensions of the H312 adapter sleeve?
The H312 fits a 55 mm shaft (d1). Its outer diameter d2 is 80 mm, its length B1 is 47 mm and its locknut width B2 is 13 mm.
Which bearings fit the H312 sleeve?
Per the selection guide, the H312 fits deep groove ball bearings 6312K; self-aligning ball bearings 1312K and 2212K; spherical roller bearings 22212K and 21312K; cylindrical roller bearings NU2212K and N312K and NU312K. Tell us the exact bearing number and we will confirm the match.
How much does the H312 weigh?
The H312 adapter sleeve weighs about 0.393 kg.
Do you supply the H312 across India?
Yes. Logass Trade Centre supplies the H312 Pan India, with the bearing and housing if you need them. Use the quote button to share your quantity and brand preference.
Can’t find your size?
We supply sizes, brands and special versions of adapter sleeves that are not listed on this page. Type the exact size or designation you need and send it to us for a quote.
Need pricing on the H312?
Share the bearing number and quantity — our technical team will confirm the sleeve and pricing within one business day.