Fafnir5214Double Row Angular Contact Ball Bearing – 70 mm ID, 125 mm OD, 39.67 mm Width, 30° Contact Angle, Open, Straight Bore

Product Description

What this part is: Fafnir 5214, a double row angular contact ball bearing built by The Timken Company. Bore Diameter: 70 mm. Outside Diameter: 125 mm. Overall Width: 39.67 mm. Number Of Rows: 2. Contact Angle: 30°. Bore Type: Straight. Closure Type: Open. Rolling Elements: Ball. Series: 5200. Base Number: 5214. Precision Class: ABEC 1 / P0. Internal Clearance: CN. Cage Type: Two-piece alternate-finger, ball-guided. Decoding the designation: 5200 — Fafnir light double-row angular contact series, built on the ISO 3200 boundary envelope, so a 5214 and a 3214 share the same 70 x 125 x 39.67 mm dimensions. 14 — bore code. Bore code multiplied by five gives the bore in millimetres: 70 mm. No clearance suffix — normal internal clearance, CN. What these specs mean in practice: Dynamic Load Rating: 139,000 N. Static Load Rating: 126,000 N. Two rows of balls run on raceways set at a 30° Contact Angle in opposed directions. That geometry carries thrust in either direction and resists tilting moments, which is what separates a double row angular contact bearing from a pair of deep groove bearings on the same shaft. A 30° angle sits between the 25° and 40° executions common in this family: more thrust capacity than a 25° design, more speed headroom than a 40°. Precision Class: ABEC 1 / P0 — standard tolerance class, the general-purpose grade for industrial shafting, gearboxes, pumps and machine frames. Mounting data: Maximum shaft fillet radius: 1.5 mm. Shaft backing shoulder diameter: 79.756 mm. Housing backing shoulder diameter: 114.046 mm. Outer ring to-clear radius: 1.5 mm. Straight bore, so the bearing mounts directly on a cylindrical shaft seat and locates axially against the shaft and housing shoulders above. Quantity and configuration: Unit Quantity: 1 Pc. One complete double row bearing, open on both faces. Interchange guidance: The 5214 interchanges with the ISO 3214 double row angular contact envelope across the major makers: SKF 3214 A, FAG 3214-BD-XL, NSK 3214 B, NTN 5214, Koyo 5214, MRC 5214, RHP 3214 and SNR 3214 A. Confirm the contact angle of the replacement against this 30° figure, since several makers publish the same envelope at 25° or 30°. Searchable variants of the number: 5214, 5214 K, 5214-K, 3214, 3214 A.