NTN  R08A31V Bearings for special applications  

Sealing solution:Triple-lip seals; Basic dynamic load rating C:127 kN; C:25 mm; B:32 mm; ra max.:0.6 mm; b:4.6 mm; Specific dynamic load factor K:100 N/mm²; da min.:49.4 mm; Basic static load rating C0:640 kN; D:68 mm;

Weight W:1.04 lb; Dimension S1:0.8750 in; Dimension H1:1.6875 in; Shaft Diameter D:1 3/16 in; Dimension A1:0.9844 in; Basic Dynamic Radial Load Rating:4380 lbf; Insert Bearing IB:ZMaRC; Basic Static Radial Load Rating Co:2520 lbf; Dimension N:0.8281 in; Distance JMAX:5.0469 in;

D1 ≈:461 mm; r1,2 min.:5 mm; Calculation factor Y0:1.8; b:22.3 mm; ra max.:4 mm; da min.:320 mm; Reference speed:750 r/min; Mass bearing:185 kg; Calculation factor Y2:2.9; K:12 mm;

Static (Cor):15.678 kN; Oil:12 000 min-1; D:72 mm; Da:65 max; Weight:0.331 kg; Grease:10 000 min-1; Pu:0.713 kN; Dynamic (Cr):29.701 kN; B:19 mm; Bearing designation:6306  ;

Pu:29.550 kN; D:140 mm; d2:80 mm; B:33 mm; Dynamic (Ca):181 kN; rs (min):2.5 mm; r1s (min):2 mm; Static (Coa):251 kN; C:28 mm; r2s (min):0.6 mm;

P55°:11200 kN; Q180°:2900 kN; P90°:5400 kN; da:500 mm; P120°:4000 kN; N1:56 mm; P0°:8800 kN; Appropriate attachment bolt, rec. tightening torque:5450 N·m; Cap bolt, size:M 42x320; J:1110 mm;

da min.:148 mm; K:3.5 mm; Basic static load rating C0:570 kN; d1 ≈:160 mm; b1:6 mm; das:154 mm; Da max.:182 mm; D1 ≈:170 mm; Basic dynamic load rating C:308 kN; r1,2 min.:1.5 mm;

A:465 mm; Appropriate attachment bolt, rec. tightening torque:5450 N·m; P150°:3500 kN; P120°:4000 kN; Appropriate attachment bolt, size G:48 mm; H:920 mm; P90°:5400 kN; N1:56 mm; H1:460 mm; Adapter sleeve:OH 3196 H;

B:34.00 mm; Basic Dynamic Radial Load Rating C:68900 N; Basic Static Radial Load Rating Co:30000 N; d:100.000 mm; Oil Speed Rating n2:4000 rpm; D:180.0000 mm; Fillet Radius ra:2.00 mm; Grease Speed Rating n1:3400 rpm;

Dimension D2:3.0000 in; Dimension L:4.8125 in; Dimension S1:1.0000 in; Dimension G:0.3750 in; Basic Dynamic Radial Load Rating:4560 lbf; Dimension N:0.7813 in; Basic Static Radial Load Rating Co:3440 lbf; Dimension B:4.1250 in; Dimension H:1.1563 in; Weight W:1.50 lb;

b:9.3 mm; Specific static load factor K0:300 N/mm²; b1:8 mm; Da min.:114.2 mm; B:123.825 mm; Specific dynamic load factor K:150 N/mm²; r2 min.:1 mm; d1 ≈:101.219 mm; da max.:101.2 mm; C:61.9 mm;

Calculation factor f2C:1.05; Calculation factor f2D:1.08; Calculation factor e:0.68; Preload class A GA:650 N; Fatigue load limit Pu:3.75 kN; Calculation factor f2A:1; Calculation factor (back-to-back, face-to-face) Y2:1.41; D:170 mm; Static axial stiffness, preload class A:322 N/µm; Db max.:1

rs (min):2.1 mm; Pu:33.350 kN; b1:mm; F:96 mm; Dynamic (Ca):266 kN; D:160 mm; d2 (max):mm; r1s (min):2.1 mm; Static (Coa):287 kN; d2:75 mm;

Fillet Radius ra:2.50 mm; Grease Speed Rating n1:3300 rpm; Basic Dynamic Radial Load Rating C:325000 N; Oil Speed Rating n2:4500 rpm; Fillet Radius rb:1.00 mm; B:90.00 mm; Basic Static Radial Load Rating Co:360000 N; d:95.000 mm; D:200.0000 mm;

Initial grease fill:141.75 g; Cap bolt recommended tightening torque:298.3 N·m; A1:98.425 mm; Pa:12.5 kN; Mass pillow block:24.3 kg; S:4.763 mm; ba:44.45 mm; h:40.481 mm; Appropriate attachment bolt size G:0.75 in; PosiTrac Plus contact element:2 x B10724-37;