NTN-SNR BEARING RULMENTI S.R.L.

Double row spherical roller bearings

The outer ring of this type of bearing has a spherical raceway that allows angular movement of the rings. This means that the bearing can accept high degrees of misalignment. Its internal design enables it to withstand very high radial loads and axial loads. Variants with a tapered bore allow fitting using an adapter sleeve. This type of bearing is particularly suited to heavy mechanical applications where it is difficult to align the seats and radial loads are high. It is well suited to severe operating conditions, involving impact or vibration (crushers, vibrating screens, heavy handling machinery, etc.).

Spherical roller bearings were the first to benefit from the Premier system. The tests carried out on these new products showed very significant gains: +18% for the load capacity, +75% minimum life duration. The « Premier » brand name is clearly visible on the specific packaging created for the launching of the range. The bearing itself bears a specific marking. In addition, to fight against counterfeits, all SNR standard bearings benefit from a new holographic label comprising several safety levels. These multiple identifications express the difference between SNR « standard » and products without any guarantee. Gradually, the Premier specification will be applied to all the brand’s bearings.

320 mm x 440 mm x 90 mm NTN 23964 Double row spherical roller bearings: d2 (max) : mm; Static (Coa) : 261 kN

300 mm x 420 mm x 90 mm NTN 23960K Double row spherical roller bearings: Axial load factor Y : 0.6; D : 150 mm

320 mm x 440 mm x 90 mm NTN 23964C3 Double row spherical roller bearings: Basic Dynamic Radial Load Rating C : 48800 N; Fillet Radius ra : 1.50 mm

NTN 23960EMD1C3 Double row spherical roller bearings: Fillet Radius ra : 1.00 mm; Accessories : Two Shields & Snap-R

300 mm x 420 mm x 90 mm NTN 23960C3 Double row spherical roller bearings: Grease : 5 600 min-1; Weight : 1.89 kg

300 mm x 420 mm x 90 mm NTN 23960 Double row spherical roller bearings: N1 : 19.05 mm; J max. : 320.675 mm

260 mm x 360 mm x 75 mm NTN 23952EMD1 Double row spherical roller bearings: ba : 44.45 mm; Da : 160 mm

280 mm x 380 mm x 75 mm NTN 23956EMD1 Double row spherical roller bearings: Oil Speed Rating n2 : 5000 rpm; Fillet Radius ra : 1.50 mm

190 mm x 260 mm x 52 mm NTN 23938EMD1 Double row spherical roller bearings: d : 120 mm; Oil : 83.890 kN

220,000 mm x 300,000 mm x 60 mm SNR 23944EMW33 Double row spherical roller bearings: Fw : 330 mm; Basic dynamic load rating C : 594 kN

240 mm x 320 mm x 60 mm NTN 23948EMD1C3 Double row spherical roller bearings: B1 : 356 mm; B : 250 mm

240 mm x 320 mm x 60 mm NTN 23948EMD1 Double row spherical roller bearings: with tapered bore : 2 800 min-1; rs (min) : 2.1 mm