SNR21310VJ30Spherical Roller Bearing – Straight Bore, 50 mm ID, 110 mm OD, 27 mm Width, Open, C3 Internal Clearance

Product Description

What this part is

SNR 21310VJ30 double-row spherical roller bearing, ISO 213 light series, 50 x 110 x 27 mm. Bore: 50 mm. Outside Diameter: 110 mm. Overall Width: 27 mm. Rolling Elements: Spherical Roller. Number Of Rows: 2. Bore Type: Straight. Closure Type: Open. Series: 213. Part Number: 21310VJ30. Base Number: 21310. Design Units: Metric. Bearing Material: Chrome steel.

Decoding the designation

Base Number: 21310, setting the 50 x 110 x 27 mm envelope. Design Generation: V, the SNR conventional design that precedes the Ultage range — symmetrical rollers and no central guide rib on the inner ring. Internal Clearance: C3. In the SNR scheme the J30 suffix is the C3 radial internal clearance group, one step greater than normal. Bore Type: Straight. Searchable variants of the number: 21310VJ30, 21310.VC3, 21310-V-C3, 21310 V C3, 21310VC3, 21310-C3, 21310CJ C3.

Ratings and running limits

Dynamic Load Rating: 142 kN. Static Load Rating: 134 kN. Fatigue Load Limit: 16.3 kN. Reference Speed: 5400 rpm. Limiting Speed: 7600 rpm. Precision Class: P0, ABEC 1. Operating Temperature Range: –40 °C to +200 °C. Item Weight: 1.251 kg (2.76 lb). Harmonization Code: 8482.30.00.40.

Cage and internal design

Cage Type: Pressed. Cage Material: Steel. Permissible Misalignment: 0.5° at normal load. The two roller rows share one concave outer-ring raceway, so the inner ring and roller set swivel within the outer ring and absorb shaft deflection and housing misalignment while carrying heavy radial load with an axial component in either direction.

What these specs mean in practice

C3 clearance is one step greater than normal. Greater clearance absorbs the running clearance lost to an interference fit on the shaft and to a temperature gradient across the bearing, so C3 suits a heavier press fit and a hotter inner ring. The 213 light section runs a slimmer outer ring than the 223 series on the same shaft, so it fits a smaller housing bore. Maximum Operating Temperature: 200 °C.

Mounting dimensions

Inner Ring Outside Diameter (d2): 66.8 mm. Outer Ring Inside Diameter (D1): 92.4 mm. Minimum Bearing Fillet Radius (rs min): 2 mm. Maximum Abutment Fillet Radius (ra max): 2 mm. Minimum Shaft Shoulder Diameter (da min): 61 mm. Maximum Housing Shoulder Diameter (Da max): 99 mm. Calculation Factors: e 0.25, Y0 2.65, Y1 2.71, Y2 4.04.

Quantity and configuration

Unit Quantity: 1 Pc. One complete bearing ships as a single assembled unit — outer ring, inner ring, two rows of spherical rollers and the pressed steel cages.

Interchange guidance

Manufacturer Part Number: 21310VJ30. On the same 50 x 110 x 27 mm envelope and the same C3 clearance class: SKF 21310 E/C3, FAG 21310-E1-C3, NTN 21310VC3, NSK 21310C3. Interchange holds on envelope and clearance class; the load ratings of the later E and Ultage executions differ from the conventional V design.