SNR21305VJ30Double-Row Spherical Roller Bearing, 25 x 62 x 17 mm, C3 Clearance, Cylindrical Bore, Narrow Section, 1 Pc

Product Description

What this part is:

SNR 21305VJ30 double–row spherical roller bearing. Brand: SNR. Manufacturer Part Number: 21305VJ30. Bearing Type: double-row self-aligning spherical roller bearing. Series: 213. Base Number: 21305. Bore: 25 mm. Outside Diameter: 62 mm. Overall Width: 17 mm. Bore Type: straight cylindrical. Number of Rows: 2. Rolling Elements: spherical (barrel) rollers. Internal Clearance: C3, greater than normal. Closure Type: open. Cage Type: pressed. Cage Material: steel. Design Units: Metric. Unit Quantity: 1 Pc.

Published ratings and mounting data:

Dynamic Load Rating: 51.1 kN. Static Load Rating: 40.3 kN. Fatigue Limit Load: 4.9 kN. Limiting Speed: 14 000 rpm. Operating Temperature Range: −40 °C to +200 °C. Item Weight: 0.257 kg (0.57 lb). Bearing Material: steel. Precision Rating: ABEC 1 / P0. Harmonization Code: 8482.30.00. Lubricant: grease or oil.

Decoding the designation:

213: ISO dimension series — a large outside diameter on a narrow width, so the bearing fits where a 222-series bearing is too wide. Bore code 05: 25 mm bore. V: SNR internal design modification. J30: radial internal clearance C3. SNR codes clearance in the J series, where J20 is C2, J30 is C3, J40 is C4 and J50 is C5, which is why the same bearing is written 21305-V-C3 and 21305VJ30.

What these specs mean in practice:

Two rows of barrel rollers run on one concave outer raceway, so the inner ring, rollers and cage swivel as an assembly inside the outer ring. That gives heavy radial capacity and axial capacity in both directions while tolerating shaft deflection and housings that are not perfectly in line.

The 213 series delivers spherical roller capacity and self-alignment in a narrow width, taking its load capacity from outside diameter rather than from width. It suits a position where axial space is fixed by an existing casting.

C3 clearance suits a position that runs warm, sits on an interference-fit shaft, or both: thermal growth of the inner ring absorbs the extra cold clearance, so the bearing reaches proper running clearance at temperature. The bore is straight cylindrical and mounts direct on the shaft. Tapered-bore versions carry a K (1:12) or K30 (1:30) suffix and run on an adapter sleeve; this one does not.

Quantity and configuration:

Unit Quantity: 1 Pc. One complete non-separable bearing: outer ring, both roller rows, cages and inner ring.

Interchange guidance:

The 25 x 62 x 17 mm spherical roller envelope is standard, so SKF 21305 CC/C3, FAG 21305-E1-TVPB-C3, NSK 21305CDE4C3 and NTN 21305D1C3 share the same seat. The 21305-CJ form carried in this listing is the same bearing written in SKF-style nomenclature and is here for search. Clearance class governs the substitution: this one is C3, so a normal-clearance 21305 is a related size on the same envelope rather than a like-for-like replacement. The 22305 shares this bore and outside diameter on a much greater width. Searchable variants of this number are 21305VJ30, 21305 V J30, 21305-V-J30, 21305VC3, 21305-V-C3, 21305 CJ and 21305CJ. SNR is part of NTN-SNR.