The 22220 bearing dimensions are 100 mm bore, 180 mm outside diameter and 46 mm width. In inches that works out to 3.937 x 7.087 x 1.811. SKF, FAG, NSK and Timken all build the 22220 to that same envelope, so any of them will drop into the same housing.
What changes between brands is everything inside the envelope: load rating, cage, clearance and weight. That’s where most replacement mistakes happen, so this guide spends more time there than on the three 22220 bearing dimensions above.
22220 Bearing Dimensions and Size Chart
The 22220 is a double row spherical roller bearing from the 222 series. The “222” sets the width and diameter series. The “20” is the bore code: multiply it by 5 and you get 100 mm, which makes it the standard 100 mm bore double row spherical roller bearing in the 222 series.
| Measurement | Metric | Inch |
|---|---|---|
| Inner diameter (d) | 100 mm | 3.937 in |
| Outer diameter (D) | 180 mm | 7.087 in |
| Width (B) | 46 mm | 1.811 in |
| Chamfer (r min) | 2.1 mm | 0.083 in |
| Shaft shoulder (da min) | 112 mm | 4.41 in |
| Housing shoulder (Da max) | 168 mm | 6.61 in |
| Approx. weight | 4.8 to 5.0 kg | 10.6 to 11 lb |
The shoulder figures come from Schaeffler’s datasheet for the FAG 22220-E1A-XL-M. Use them alongside the main 22220 bearing dimensions when you machine a new shaft or check a worn one. A shoulder that’s too short won’t support the inner ring face, and the bearing will walk under axial load.
The 22220 bearing weight varies a little by cage. Schaeffler lists its brass cage version at 4.931 kg, while NSK puts its tapered bore 22220EAKE4 at 4.84 kg.
Same 22220 Bearing Dimensions, Very Different Loads
Here’s the part catalog tables bury. The 22220 bearing load capacity depends on the internal design, and the suffix after “22220” tells you which design you have.
An older 22220/W33 design lists a dynamic rating of 360 kN and a static rating of 415 kN in Emerson Bearing’s 22200 series table. The SKF 22220 E is rated 425 kN dynamic and 490 kN static on its RS Components listing. NSK’s 22220EAKE4 goes higher again, at 455 kN dynamic and 490 kN static.
That’s a jump from 360 kN to 455 kN between bearings with identical 22220 bearing dimensions. Rated life for roller bearings scales with the load ratio raised to the power of 10/3, so a 26% rating gap becomes more than double the calculated life. If a machine was designed around an E type bearing and someone fits an old design unit, it will fit perfectly and may still fail early.
So when you send a 22220 bearing dynamic load rating or 22220 bearing static load rating to a supplier, send the full part number with it. “22220” alone isn’t a specification, and matching 22220 bearing dimensions alone doesn’t guarantee matching performance.
Speed limits follow the same logic. SKF lists a reference speed of 3,400 rpm and a limiting speed of 4,500 rpm for the 22220 E, and grease lubrication pulls practical speed below what oil allows.
What the Suffix Letters Mean
You’ll see the same base number with very different tails. These are the ones that change 22220 bearing specifications without touching the 22220 bearing dimensions:
- E, EA, E1: the maker’s high capacity internal design, usually with a pressed steel cage.
- CC, CA: older or alternative designs that still appear on plenty of interchange parts, such as the 22216 CC spherical roller bearing. CA versions usually carry a machined brass cage.
- M or EM: machined brass cage, which copes better with shock and vibration.
- K: tapered bore with a 1:12 taper, for mounting on an adapter or withdrawal sleeve. NSK notes that K30 means a 1:30 taper.
- W33: a lubrication groove and three holes in the outer ring.
- C3, C4: radial internal clearance larger than normal.
22220 Bearing Clearance and When to Choose C3
Radial internal clearance is the play between the rollers and rings before mounting. A spherical roller bearing loses some of it when you press the inner ring onto a shaft, and loses more once the inner ring runs hotter than the outer ring.
For cylindrical bore spherical roller bearings with a bore over 100 mm up to 120 mm, SKF’s clearance table gives these ranges:
| Clearance group | Range (micrometers) |
|---|---|
| C2 | 40 to 75 |
| Normal (CN) | 75 to 120 |
| C3 | 120 to 160 |
| C4 | 160 to 210 |
Tapered bore bearings use a separate table. For the same size band, SKF’s tapered bore C3 range is 135 to 170 micrometers, because driving the bearing up the taper uses up part of the clearance.
Choose a 22220 C3 spherical roller bearing when the application has a heavy press fit, a hot shaft or a temperature difference between the rings. Fans and gearboxes usually fit that description. Normal clearance suits steady loads at moderate temperatures. Go to C4 only when the equipment manual calls for it. The 22220 bearing dimensions stay the same whichever clearance group you pick.
Shock loading is a separate problem from heat. For crushers and vibrating screens, a reinforced cage matters as much as clearance, and those machines often step up to heavier 223 series sizes such as the 22324 CC/C3W33 spherical roller bearing.
How Self Alignment Affects Fit and Tolerance
The 22220 is self aligning. The outer ring raceway is a section of a sphere, so the inner ring and roller set can tilt together as a unit. Arvid Palmgren designed the spherical roller bearing, and SKF brought it to market in 1919.
Zoro’s listing for the SKF 22220 E quotes a maximum misalignment of 2 degrees. That tolerance for shaft deflection is why these bearings show up on long conveyor shafts and in heavy mining equipment where frames flex.
Self alignment doesn’t excuse a loose fit, though. The 22220 bearing tolerance on the bore in normal class is 0 to minus 0.020 mm, so a new bearing’s bore measures between 99.980 and 100.000 mm. A loose inner ring creeps on the shaft and scores it, however well the bearing aligns.
For misaligned shafts with lighter loads and higher speeds, self aligning ball bearings handle the tilt with less friction.
22220 Bearing Equivalent Part Numbers
The 22220 bearing dimensions follow ISO 15, so the main brands interchange directly:
| Brand | Plain bore | Tapered bore |
|---|---|---|
| SKF | 22220 E | 22220 EK |
| FAG | 22220-E1-XL | 22220-E1-XL-K |
| NSK | 22220EAE4 | 22220EAKE4 |
| Timken | 22220EJW33 | ask for the K version |
Add C3 or C4 to the end of any of these if you need the larger clearance. Cage and clearance codes differ by brand, so check our bearing cross reference charts before you order.
Two near misses trip people up. The 23220 shares the 100 mm bore and 180 mm OD but belongs to a wider series, so it won’t fit a housing machined for the 46 mm width in the 22220 bearing dimensions.
The 22320 keeps the 100 mm bore but grows to 215 mm OD and 73 mm wide, and SKF rates its E version at 847 kN dynamic. It’s the heavier 223 series, the same family as the 22312 CC/W33 double row spherical roller bearing. If shaft loads have grown since the machine was built, the 22320 is the logical upgrade, but it means a new housing.
What Drives the 22220 Bearing Price
Price swings a lot on this part number, and the 22220 bearing dimensions have nothing to do with it. Brand, cage material, bore type, clearance group and order quantity set the number. A tapered bore C3 bearing with a brass cage will cost more than a plain bore, normal clearance unit from the same factory.
TFL quotes spherical roller bearings per order instead of listing fixed prices, because volume and configuration change the figure. Send the full part number and quantity through our contact page for a quote on that exact spec.
Bearings That Often Run Beside a 22220
A machine with a 22220 at the drive end rarely uses it alone. Heavy gearboxes and vertical shafts often carry axial thrust on spherical roller thrust bearings.
The floating end of a long shaft may run on cylindrical roller bearings, which let the shaft grow with heat without loading the locating bearing.
Pinion shafts and wheel hubs in the same equipment frequently use tapered roller bearings instead, since they take combined loads in a tight space.
And for compact units with moderate loads, a single row spherical roller bearing can save space and weight.
Quick Answers
Are 22220 bearing dimensions in mm or inches?
They’re metric. The 22220 bearing dimensions in mm are 100 x 180 x 46, or 3.937 x 7.087 x 1.811 in inches.
Can I replace a 22220 CC with a 22220 E?
Yes. The 22220 bearing dimensions match and the E type usually carries more load. Keep the same clearance group and bore type.
What adapter sleeve fits a 22220 K?
The H320 adapter sleeve, which mounts the bearing on a 90 mm shaft.
Before you order, take the 22220 bearing measurements from the old unit (bore, OD and width) and confirm they match the 22220 bearing dimensions above. Then write down every letter stamped on the ring face. Those letters tell you the cage, bore and clearance, and they decide whether the replacement lasts. TFL’s spherical roller bearings come in straight and tapered bore designs with C3 clearance available.
