SNR21307VDouble-Row Spherical Roller Bearing – Straight Bore, 35 mm ID x 80 mm OD x 21 mm Width, Open, CN Internal Clearance, Narrow 213 Section

Product Description

What this part is

SNR 21307V double-row spherical roller bearing. Manufacturer Part Number: 21307.V. Bearing Type: Spherical Roller Bearing. Series: 21300. Number Of Rows: 2. Rolling Elements: Spherical Roller. Bore: 35 mm. Outside Diameter: 80 mm. Overall Width: 21 mm. Bore Type: Straight. Item Weight: 0.53 kg (1.17 lb).

Decoding the designation

The 213 series is the narrow section of the double-row spherical roller range: the same 80 mm outside diameter as a 22307 but a 21 mm width instead of 31 mm. V is the SNR conventional design generation, with symmetrical rollers and no central rib on the inner ring. No clearance suffix means normal clearance, CN. Searchable forms of the part number: 21307V, 21307-V, 21307 V, 21307.

What these specs mean in practice

Dynamic Load Rating: 71.2 kN (16,006 lbf). Static Load Rating: 78.5 kN (17,647 lbf). Limiting Speed: 6,900 rpm. Internal Clearance: CN. Precision Class: P0, ABEC 1. Cage Material: Pressed Steel. Cage Type: Pressed. Bearing Material: Chrome bearing steel. Closure Type: Open. Maximum Operating Temperature: 200 °C. Minimum Operating Temperature: -30 °C. Two rows of spherical rollers run on a common sphered outer raceway, so the bearing carries heavy radial load together with thrust in either axial direction, and the inner ring and roller set swivel inside the outer ring to absorb shaft deflection under load and angular error between two housings. On a double-row spherical roller the static rating sits above the dynamic rating because the load is spread across two rows of long rollers in simultaneous contact. The narrow 213 section fits the same shaft and housing bores as the wider 223 series in a shorter axial space.

Quantity and configuration

Unit Quantity: 1 Pc. One complete double-row spherical roller bearing, straight bore, open on both faces, mounting directly on a cylindrical shaft seat. Lubricant: grease or oil. Condition: new old stock, open box.

Interchange guidance

Same-envelope 35 x 80 x 21 mm spherical rollers: SKF 21307 E, FAG 21307-E1, NTN 21307, NSK 21307EAE4, Koyo 21307RH. Design Units: Metric.