FAG 1218-K-TVH-C3 self-aligning ball bearing
- Brand
- FAG
- Category
- Bearings
- Subcategory
- Self-aligning ball bearings
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Decoding FAG 1218-K-TVH-C3
- 12Series
- Self-aligning ball bearings, 12 series. Series differ in outside diameter and width even when the bore is the same.
- 18Bore
- Bore 90 mm (18 × 5).
- K-TVH-C3Suffix
- FAG suffix: identifies the variant, such as seals or shields, cage, internal clearance or other features.
1218 is the standard ISO basic designation, which sets the bearing type, series and bore.
Description
FAG 1218-K-TVH-C3 measures 90 mm across the bore and 160 mm across the outside diameter; its width is 30 mm (90 x 160 x 30 mm).
FAG 1218-K-TVH-C3 belongs to self-aligning ball bearing, part of our Bearings range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for 1218-K-TVH-C3 and any equivalents.
The FAG self-aligning ball bearing 1204-K-TVH-C3 is a two-row bearing that compensates for angular misalignment between shaft and housing. Its spherical outer raceway lets the inner ring tilt, so mounting is easier and alignment errors are absorbed. It suits setups where the shaft flexes or the support lacks rigidity.
Reading the code helps you order the right variant. The base number 1204 sets the size, K means a tapered bore for mounting on a tapered shaft, TVH identifies a fiberglass-reinforced polyamide cage, and C3 denotes increased internal radial clearance. The same pattern applies to 1205-K-TVH-C3, 1206-K-TVH-C3 and 1207-K-TVH-C3.
These bearings are common in belt conveyors, textile machines, bottling equipment, fans and mixers. They also appear on long transmission shafts where flex demands self-alignment. With two rows of balls, they carry moderate radial and axial loads in both directions, which makes them a frequent choice in food, chemical and process plants.
Selection depends on the bore type. A K series bearing mounts on a tapered shaft, usually with an adapter sleeve, which simplifies radial clearance adjustment. The TVH cage handles moderate temperatures and standard lubrication. C3 clearance is recommended with interference fits or thermal gradients. Check initial alignment and pick the lubricant for the service conditions.
Self-aligning ball bearings can be interchanged between manufacturers when main dimensions, bore type and clearance match. A part number with K and C3 from another brand may replace the FAG one if those characteristics are kept. Tolerances and cage materials can differ, so confirm the equivalence with a specialist before ordering.
If you have the part number or model, send it by WhatsApp or email and the team will reply promptly. MR Industrial Accessories LLC supplies the FAG brand and can suggest equivalents or help you choose the variant that fits your application.
Dimensions
90 x 160 x 30 mm (d x D x B): boundary dimensions for basic designation 1218, according to ISO 15.
- Bore
- 90mm
- Outside diameter (D)
- 160mm
- Width (B)
- 30mm
SKF and other brands, same size
Other brands' pages with basic designation 1218: 90 x 160 x 30 mm (d x D x B) per ISO 15.
What they share are the ISO 15 boundary dimensions, not the specs: seals or shields, internal clearance, cage and load rating may vary with brand and suffix. Every quote is by full part number.
Frequently asked questions
- FAG 1218-K-TVH-C3 bearing: what are its dimensions?
- FAG 1218-K-TVH-C3 measures 90 mm across the bore and 160 mm across the outside diameter; its width is 30 mm (90 x 160 x 30 mm). Those are the boundary dimensions standardized in ISO 15 for basic designation 1218.
- What does the suffix K mean in a self-aligning ball bearing?
- K indicates a tapered bore. The bearing mounts on a tapered shaft or with an adapter sleeve, which makes it easier to adjust internal radial clearance during installation.
- What is the purpose of C3 clearance in these bearings?
- C3 means greater internal radial clearance than normal. It is recommended when interference fits or thermal differences between shaft and housing could reduce clearance and affect operation.
- Can I replace a FAG bearing with another brand?
- Yes, if dimensions, bore type and radial clearance match. Check that the other brand's part number includes the same K and C3 designations, and contact us to confirm equivalence before requesting a quote.