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Double-row spherical roller bearing, 50 x 90 x 23 mm, 1:12 tapered bore for an H310 adapter sleeve. Rubber seals both sides, W33 groove, C3 clearance.
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| MFR / Brand | Koyo |
|---|---|
| MPN | 22210RRKW33C3 |
| Model | 22210 K |
| Bearing Type | Spherical Roller Bearing, Double Rubber Seal |
| ID | 50 mm |
| OD | 90 mm |
| Width | 23 mm |
| Condition | New – Open box |
|---|---|
| Lubricant | Grease |
| Material | Bearing Steel |
| Relubrication | W33 groove with three radial feed holes in the outer ring |
| Base Number | 22210 |
| Industry Terms | sealed spherical roller bearing; self-aligning roller bearing; adapter sleeve bearing; W33 roller bearing; C3 clearance bearing |
| Common Misspellings | 22210 RRK W33C3; 22210RKW33C3; Koyo 22210-RR-K-W33; 2210RRKW33 |
| Application Types | Conveyor pulleys and idlers; agricultural drives; fans; washdown and dusty environments; shaft drives on adapter sleeves |
| Condition Note | Made In Japan. Tapered Bore. New In Open Box |
| Bore Shaft Size | 50 mm tapered bore (mounts on an H310 sleeve for a 45 mm shaft) |
| Mpn Variants | 22210RRKW33C3; 22210 RR K W33 C3; 22210RRK; 22210K; 22210 |
| Compatible With Replaces | H310 adapter sleeve with KM10 locknut and MB10 lock washer |
| Arrangement Configuration | Self-aligning, axial capacity in both directions |
| Precision Class | P0 (normal, ABEC 1) |
| Min Temp | -20°C |
| Cage Type | Steel |
| Dynamic Load Rating | 104 kN |
| Static Load Rating | 108 kN |
| Precision Rating | ABEC 1 / P0 |
| Rolling Elements | Spherical Rollers |
| Max Temp | 200°C |
| Item Weight | 1.34 lbs |
| Number Of Rows | 2 |
| Bore Type | Tapered 1:12 |
| Snap Ring Included | Without Snap Ring |
| Relubrication Feature | Yes |
| Design Units | Metric |
| Internal Clearance | C3 |
| Part Number | 22210RRKW33C3 |
| Cross Reference 1 | SKF 22210 EK-2RS1 |
|---|---|
| Cross Reference 2 | FAG 22210-E1-K-2RSR |
| Cross Reference 3 | NSK 22210EAKE4 (related size, open) |
| Cross Reference 4 | Koyo 22210RRW33C3 (related size, straight bore, no adapter sleeve) |
A Koyo 22210RRKW33C3 double-row spherical roller bearing, 50 mm bore, 90 mm outside diameter, 23 mm width. Tapered 1:12 bore, contact rubber seals both sides, W33 lubrication groove and feed holes in the outer ring, steel cage, C3 internal clearance.
222 is the double-row spherical roller bearing in the 22 dimension series and the bore code 10 gives 50 mm. RR is the Koyo code for contact rubber seals on both faces. K is the 1:12 tapered bore. W33 is a lubrication groove around the outer ring with three radial feed holes. C3 is radial internal clearance greater than normal.
The spherical outer raceway lets the roller set swivel, so the bearing absorbs shaft misalignment and housing deflection while carrying heavy radial load and thrust in both directions. Contact seals retain grease and exclude water and dust, which suits conveyor and agricultural duty at the cost of speed and running temperature. C3 clearance leaves room for the interference fit and for thermal growth of the inner ring, and is the normal choice where the bearing runs hot or is driven up a sleeve taper.
The tapered bore mounts on an adapter sleeve. The matching sleeve is an H310, which fits a 45 mm plain shaft and is locked by a KM10 nut and MB10 washer. Drive-up on the taper sets the final radial internal clearance.
1 Pc. Complete bearing: outer ring with W33 groove, two roller rows, cage, tapered-bore inner ring and both seals. Without snap ring.
SKF 22210 EK-2RS1 and FAG 22210-E1-K-2RSR are same-envelope sealed tapered-bore equivalents. Koyo 22210RRW33C3 is a related size with a straight bore that mounts directly on the shaft; Koyo 22210RKW33C3 is a related size in the open form.
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