Adapter Sleeves
H3 Series Adapter Sleeves (300 Bore Codes)
H3 adapter sleeve assemblies for shaft diameters of 17mm – 100mm, for mounting tapered-bore deep groove ball bearings, self-aligning ball bearings, spherical roller bearings, cylindrical roller bearings on plain shafts. 19 sizes from H304 (17 mm shaft, 0.045 kg) to H322 (100 mm shaft, 2.18 kg). H3 sleeves fit the 22, 13 and 213 series bearings among others, so one H3 size can carry several bearing types.
Dimensions & Sleeve Numbers
| Shaft Dia. (d1) (mm) | Sleeve Number | d2 (Outer Dia.) (mm) | B1 (Sleeve Length) (mm) | B2 (Locknut Width) (mm) | Weight (kg) |
|---|---|---|---|---|---|
| 17 | H304 | 32 | 28 | 7 | 0.045 |
| 20 | H305 | 38 | 29 | 8 | 0.075 |
| 25 | H306 | 45 | 31 | 8 | 0.109 |
| 30 | H307 | 52 | 35 | 9 | 0.142 |
| 35 | H308 | 58 | 36 | 10 | 0.189 |
| 40 | H309 | 65 | 39 | 11 | 0.248 |
| 45 | H310 | 70 | 42 | 12 | 0.302 |
| 50 | H311 | 75 | 45 | 12 | 0.345 |
| 55 | H312 | 80 | 47 | 13 | 0.393 |
| 60 | H313 | 85 | 50 | 14 | 0.459 |
| 60 | H314 | 92 | 52 | 14 | 0.723 |
| 65 | H315 | 98 | 55 | 15 | 0.83 |
| 70 | H316 | 105 | 59 | 17 | 1.03 |
| 75 | H317 | 110 | 63 | 18 | 1.18 |
| 80 | H318 | 120 | 65 | 18 | 1.37 |
| 85 | H319 | 125 | 68 | 19 | 1.56 |
| 90 | H320 | 130 | 71 | 20 | 1.69 |
| 95 | H321 | 140 | 74 | 20 | 1.93 |
| 100 | H322 | 145 | 77 | 21 | 2.18 |
Dimensions and sleeve numbers per manufacturer technical catalogue. Always confirm the bearing number when ordering, as one sleeve size fits several bearing series.
Request Quote for H3Bearings That Fit H3 Sleeves
| Deep groove ball bearings | 6311K – 6322K |
|---|---|
| Self-aligning ball bearings | 1304K – 1322K · 2204K – 2222K |
| Spherical roller bearings | 22205K – 22222K · 21304K – 21322K |
| Cylindrical roller bearings | NU2205K – NU2222K · N306K – N322K · NU304K – NU322K |
Features
- Mounts tapered-bore bearings on a plain (cylindrical) shaft, so the shaft needs no tapered seat
- The bearing can be placed at any position along a smooth shaft
- Easy mounting and dismounting of the bearing
- A typical assembly is a slotted sleeve, a locknut and a retaining plate
- Metric and inch shaft sizes are available; ask us for sizes not shown in the table
Typical Applications
- Plummer block bearing units on plain shafts
- Fans, blowers and line shafting
- Conveyor and drive shafts
- Gearboxes, pumps and crushers
Frequently Asked Questions
What shaft sizes does the H3 series cover?
H3 adapter sleeves are listed for shaft diameters from 17 mm (H304) to 100 mm (H322), 19 sizes in all.
Which bearings fit the H3 sleeves?
Deep groove ball bearings: 6311K – 6322K; Self-aligning ball bearings: 1304K – 1322K, 2204K – 2222K; Spherical roller bearings: 22205K – 22222K, 21304K – 21322K; Cylindrical roller bearings: NU2205K – NU2222K, N306K – N322K, NU304K – NU322K. The sleeve size follows the bearing bore code, so a bearing ending in 10K takes the sleeve ending in 10.
How heavy is a H3 adapter sleeve?
Weights run from 0.045 kg for the H304 to 2.18 kg for the H322. The exact figure for each size is in the table above.
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 H3 sleeves?
Share the bearing number and quantity — our technical team will confirm availability and pricing within one business day.