Timing Belt Pulleys and V-Belt Sheaves: Matching Belt Drive Components Correctly
Belt drives may appear simple, consisting of two wheels and a belt for power transfer.
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Deep groove ball bearing with pressed steel shields on both sides, 90 mm bore x 140 mm OD x 24 mm wide, normal clearance, factory greased. Fit-and-forget: no relubrication, no housing grease needed. Sold as 1 piece.
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$54.83
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Here are some other options that might fit your project — cross-referenced equivalents and similar parts we have in stock and ready to ship. Need help choosing? Call 585-295-7880.
Deep Groove Ball Bearing 90 x 140 x 24 mm, Single Steel Shield One Side, Normal Clearance, 1 Pc$52.78
Deep Groove Ball Bearing, Open, 90 mm Bore, 140 mm OD, 24 mm Width, Single Row, Normal Clearance$54.83
Deep Groove Ball Bearing - 90 mm ID, 160 mm OD, 30 mm Width, Open, Pressed Brass Cage$76.19
Deep Groove Ball Bearing, Open, Extra-Thin Section, 10 x 22 x 6 mm, 2.7 kN Dynamic Load Rating, Square Cross-Section$21.24| MFR / Brand | SKF |
|---|---|
| MPN | 6018-2Z |
| Model | 6018-ZZ/2Z |
| Bearing Type | Deep Groove Ball Bearing |
| ID | 90 mm |
| OD | 140 mm |
| Width | 24 mm |
| Material | Steel |
|---|---|
| Relubrication | No - shielded, factory greased |
| Base Number | 6018 |
| Industry Terms | Deep groove ball bearing, shielded ball bearing, double shielded bearing, 90mm bore bearing, radial ball bearing, motor bearing |
| Common Misspellings | 6018 2ZZ, 6018-2RS, 60182Z C3, SKF6018ZZ, 6018 Z Z |
| Application Types | Electric motors, gearbox end supports, fans and blowers, pumps, line shafting |
| Bore Shaft Size | 90 mm |
| Mpn Variants | 6018-2Z, 6018 2Z, 60182Z, 6018ZZ, 6018-ZZ, 6018-2Z/C3 |
| Distributor Stock Numbers | EAN 7316577061973 |
| Additional Attributes | Shields are non-contact and exclude dry debris only; not interchangeable with 6018-Z (one shield) or an open 6018 |
| Number Of Rows | 1 |
| Snap Ring Included | No |
| Design Units | Metric |
| Bearing Material | Through-hardened bearing steel |
| Part Number | 6018-2Z |
| Cross Reference 1 | FAG 6018-2Z |
|---|---|
| Cross Reference 2 | NSK 6018ZZ |
| Cross Reference 3 | NTN 6018ZZ |
| Cross Reference 4 | Koyo 6018ZZ |
A single-row deep groove ball bearing, 90 mm bore by 140 mm outside diameter by 24 mm wide, with pressed steel shields on both sides and factory grease sealed inside. Deep groove ball bearings carry radial load plus axial load in either direction. This double-shielded form is the standard fit-and-forget bearing for electric motors, gearbox end supports, fans, blowers and pump drives.
6 – single-row deep groove ball bearing0 – dimension series 60, the light section for this bore18 – bore code, 18 x 5 = 90 mm bore2Z – pressed steel shields on BOTH sides (SKF scheme). A single Z is one shield only; 2RS1 would be contact rubber seals, 2RZ low-friction non-contact sealsNo clearance suffix – normal (CN) radial internal clearance
6018ZZ is the same closure written in the Japanese style, and the two designations describe the same bearing.
Shields are the spec to get right, because they are not seals. Each shield is a stamped steel disc running with a small gap at the inner ring, so it adds almost no friction and does not limit speed — but it holds back dry dust and coarse debris only. It will not keep out washdown water, coolant mist or fine wet grit; a 2RS1 with contact rubber seals is the right part for that, at the price of more running torque and a lower speed ceiling.
Equally, this is not the same part as a 6018-Z with one shield. The double-shielded bearing carries its own grease charge and is closed to the housing on both sides, so it neither needs nor accepts lubricant from the gearbox. A single-shielded bearing depends on that feed. And an open 6018 is different again: it arrives dry and leaves both sealing and lubrication to the housing.
Clearance is normal (CN), which suits a shaft and housing at similar temperatures with a standard interference fit. If the original was a 6018-2Z/C3, fit that.
Bore: 90 mmOutside diameter: 140 mmWidth: 24 mmRows: 1Closure: pressed steel shields, both sides (2Z), non-contactInternal clearance: normal (CN)Lubrication: factory greasedMaterial: through-hardened bearing steelEAN: 7316577061973
Sold as 1 piece, one double-shielded bearing. No snap ring, no housing.
At 90 mm bore, heat mounting to about 80 to 100 °C is easier than a cold press. Load only the ring being fitted and never across the balls — a shield knocked out of true will rub for the rest of the bearing’s life. Do not pry the shields out to add grease; the factory fill is matched to the bearing.
Genuine interchanges are same-envelope bearings shielded on both sides: FAG 6018-2Z, NSK 6018ZZ, NTN 6018ZZ, Koyo 6018ZZ and Nachi 6018ZZ. A 6018-Z (one shield), a 6018-2RS1 (contact seals), an open 6018 and a 6018-2Z/C3 (greater clearance) all change lubrication, sealing or fit-up — related parts, not drop-in equivalents.
Belt drives may appear simple, consisting of two wheels and a belt for power transfer.
Tapered, cylindrical, and spherical roller bearings all solve the same basic problem, carrying more load
If you pulled a bearing off general industrial equipment at random, there’s a good chance
Our team can locate, cross-reference, and source all parts.
Our team can locate, cross-reference, and source all parts.
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