| US stock number | 21208 | |||
| Design | HM21 | |||
| Lip material | R | |||
SKF Bore Tite Coating

| d1 | 53.975 | mm | |
| D | 77.75 | mm | |
| b | 6.35 | mm |
| Pressure differential | max. | 0.07 | MPa | |
| Operating temperature | min. | -40 | °C | |
| Operating temperature | max. | 100 | °C | |
| Operating temperature, short period | max. | 120 | °C | |
| Rotational speed | max. | 3538 | r/min | |
| Shaft surface speed | max. | 10 | m/s |
| Model No. | Inner Diameter | Outer Diameter | Width | Type |
| 331981 | 346.075 | 488.95 | - | Bearings, units and housings |
|---|---|---|---|---|
| 50620 | 128.6002 | 155.58 | 12.7 | Seals |
| 65x140x12 HMSA10 RG | 65 | 140 | 12 | Seals |
| 7001 CE/P4A | 12 | 28 | 8 | Bearings, units and housings |
| 7019 CE/P4AL1 | 95 | 145 | 24 | Bearings, units and housings |
| 7317 BECBF | 85 | 180 | 41 | Bearings, units and housings |
| AOH 30/850 | 800 | 850 | 325 | Bearings, units and housings |
| BK 1616 | 16 | 22 | 16 | Bearings, units and housings |
| SAF 22616 x 2.5/8 | 66.675 | - | - | Bearings, units and housings |
| SAFS 22538 x 6.13/16 T | 173.0375 | - | - | Bearings, units and housings |
| SSAFS 22218 TLC | 90 | - | - | Bearings, units and housings |
| Z 201 | 12 | - | 4 | Seals |
Hot number:
10 VS V
BD-23184 CKJ/W33-OH 3184 H
61904
7204 BEGAP
80x110x12 HMSA10 V
KMFE 28 L
NJG 309 VH
NKI 50/25
NU 312 ECP
NUP 2311 ECP
NX 35 Z
P 20 FM
SAF 22610 x 1.3/4
SAFS 22234 T
W 6201-2RS1/VP311
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