SNR21314VKC3Double-Row Spherical Roller Bearing – 70 mm Tapered Bore, 150 mm OD, 35 mm Width, C3 Clearance, H314 Sleeve Mounting

Product Description

What this part is: SNR 21314VKC3 double-row spherical roller bearing. Series: 21300. Base Number: 21314. Bore: 70 mm. Outside Diameter: 150 mm. Overall Width: 35 mm. Bore Type: Tapered 1:12. Closure Type: Open. Number Of Rows: 2. Rolling Elements: Spherical Roller. Internal Clearance: C3. Precision Rating: ABEC 1 / P0. Bearing Material: Bearing steel. Item Weight: 2.95 kg (6.50 lb). GTIN: 3413520079468. Searchable variants of the number: 21314VKC3, 21314.V.K.C3, 21314-V-K-C3, 21314 V K C3, 21314VKC3, 21314CKJ. Decoding the designation: Series: 21300 — the light double-row spherical roller series. V: internal design modification. K: 1:12 tapered bore. C3: internal radial clearance greater than normal, which suits an interference fit on the shaft and a raised operating temperature. On a spherical roller bearing C3 is a normal, correct clearance selection. Bore form and adapter sleeve: The bore is tapered 1:12, and the 70 mm figure is the small-end bore diameter. The matching adapter sleeve is an SNR H314 — its tapered outside diameter is 70 mm and its cylindrical shaft seat is 60 mm, so the bearing mounts on a 60 mm plain shaft. The sleeve is a separate part and carries its own KM locknut and MB lockwasher. Driving the bearing up the sleeve taper sets the internal clearance by controlled radial expansion of the inner ring. What these specs mean in practice: Two rows of barrel rollers run on a common spherical raceway in the outer ring, so the inner ring and roller set swivel inside the outer ring. Permissible Misalignment: 0.5° at normal load. The double-row arrangement takes axial load in both directions alongside the radial load. Operating Temperature Range: −40 °C to 200 °C. Quantity and configuration: Unit Quantity: 1 Pc. Single bearing, open on both faces, tapered bore. Interchange guidance: Same-envelope tapered-bore equivalents at C3 clearance: SKF 21314 EK/C3, FAG 21314-E1-K-C3, NSK 21314EAKE4C3, Koyo 21314RKC3. Load ratings and cage execution differ between makers. The NSK 21314EAKE4C3 carries a W33 lubrication groove and three radial feed holes in the outer ring. Related part: SNR H314 adapter sleeve.