Adapter Sleeves
H31 Series Adapter Sleeves
H31 adapter sleeve assemblies for shaft diameters of 100mm – 450mm, for mounting tapered-bore deep groove ball bearings, spherical roller bearings, cylindrical roller bearings on plain shafts. 24 sizes from H3122 (100 mm shaft, 2.25 kg) to H3196 (450 mm shaft, 133 kg). H31 sleeves fit the 231 and 222 series spherical roller bearings at large sizes, up to a 450 mm shaft.
Dimensions & Sleeve Numbers
| Shaft Dia. (d1) (mm) | Sleeve Number | d2 (Outer Dia.) (mm) | B1 (Sleeve Length) (mm) | B2 (Locknut Width) (mm) | Weight (kg) |
|---|---|---|---|---|---|
| 100 | H3122 | 145 | 81 | 21 | 2.25 |
| 110 | H3124 | 155 | 88 | 22 | 2.64 |
| 115 | H3126 | 165 | 92 | 23 | 3.66 |
| 125 | H3128 | 180 | 97 | 24 | 4.34 |
| 135 | H3130 | 195 | 111 | 26 | 5.54 |
| 140 | H3132 | 210 | 119 | 28 | 7.7 |
| 150 | H3134 | 220 | 122 | 29 | 8.4 |
| 160 | H3136 | 230 | 131 | 30 | 9.5 |
| 170 | H3138 | 240 | 141 | 31 | 10.8 |
| 180 | H3140 | 250 | 150 | 32 | 12.1 |
| 200 | H3144 | 280 | 158 | 32 | 14.7 |
| 220 | H3148 | 300 | 169 | 34 | 17.3 |
| 240 | H3152 | 330 | 187 | 36 | 22 |
| 260 | H3156 | 350 | 192 | 38 | 24.5 |
| 280 | H3160 | 380 | 208 | 40 | 30.3 |
| 300 | H3164 | 400 | 226 | 42 | 35 |
| 320 | H3168 | 440 | 254 | 55 | 49.5 |
| 340 | H3172 | 460 | 259 | 58 | 54.5 |
| 360 | H3176 | 490 | 264 | 60 | 61.6 |
| 380 | H3180 | 520 | 272 | 62 | 70.1 |
| 400 | H3184 | 540 | 304 | 70 | 84 |
| 410 | H3188 | 560 | 307 | 70 | 103 |
| 430 | H3192 | 580 | 326 | 75 | 116 |
| 450 | H3196 | 620 | 335 | 75 | 133 |
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 H31Bearings That Fit H31 Sleeves
| Deep groove ball bearings | 6324K – 6340K |
|---|---|
| Spherical roller bearings | 23122K – 231/500K · 22224K – 22264K |
| Cylindrical roller bearings | NU2224K – NU2264K · N324K – N340K · NU324K – NU340K |
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 H31 series cover?
H31 adapter sleeves are listed for shaft diameters from 100 mm (H3122) to 450 mm (H3196), 24 sizes in all.
Which bearings fit the H31 sleeves?
Deep groove ball bearings: 6324K – 6340K; Spherical roller bearings: 23122K – 231/500K, 22224K – 22264K; Cylindrical roller bearings: NU2224K – NU2264K, N324K – N340K, NU324K – NU340K. The sleeve size follows the bearing bore code, so a bearing ending in 10K takes the sleeve ending in 10.
How heavy is a H31 adapter sleeve?
Weights run from 2.25 kg for the H3122 to 133 kg for the H3196. 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 H31 sleeves?
Share the bearing number and quantity — our technical team will confirm availability and pricing within one business day.