NNTR90X220X100-2ZL track roller bearings, Support rollers, with flange rings, with an inner ring
Support rollers with flange rings are non-separable units
This bering have different flange designs:
1.pressed-on flange rings (NATR and NATV designs)
2.loose flange rings (NUTR, PWTR and NNTR designs)
3.accommodate axial loads that can occur because of skew or tilting
NNTR ...2ZL design support rollers are based on double row full complement cylindrical roller bearings.
NNTR...2ZL Series bearing have an outer ring with three integral flanges, which guide the roller sets axially.
NNTR...2ZL Series bearing have an inner ring with two loose flange rings, which guide the outer ring axially via the roller sets.
This bearing have a relatively large grease quantity between the two roller sets and fitted with a lamellar seal on both sides, inserted into recesses in the shoulders of the flange rings and the outer ring, making the support roller non-separable.
It accommodate very heavy radial loads and relatively heavy axial loads that can occur because of skew or tilting.
NNTR90X220X100-2ZL Support rollers, with flange rings and an inner ring detail Specifications
Material:52100 Chrome Steel
Series:Support rollers, with flange rings, with an inner ring
Construction:Double Row,full complement roller
Seal Type:2Z
Limiting Speed:400rpm
Weight:22.5 kg
Main Dimensions
Bore diameter(d):90mm
Outside diameter(D):220mm
Width inner ring(B):100mm
Width outer ring(C): 98mm
Outside diameter flange ring(d2):119mm
D1:146mm
d3:5mm
R:10000mm
Chamfer dimension flange ring bore(r1 min.):2.5mm
Chamfer dimension outer ring(r min.) :4mm
Dynamic load ratings(Cr): 475KN
Static load ratings(Cor):750KN
Permissible dynamic radial load:
Fr per:600KN
F0r per:750KN
Fatigue limit load(Curw):104KN
