Supply roller bearings NUTR4090 main structure

Structural features bearing code
KR with cage suffix "X" is expressed as a cylindrical outer surface, for example: KR16 X
KR .. PP There cage with a ring
KRV full complement needle roller
KRV .. PP full complement needle roller with a ring
NUKR full complement cylindrical roller
NUKRE full complement cylindrical roller with eccentric
CR Inch with cages
CR .. UU Inch the cage with a ring
CRV ... Inch without cage
CRV ... UU Inch no cage with a ring
CRY ... V
CRY ... VUU
KRE said that with the eccentric, a cage
KRVE said tapered bearin the eccentric, full type
One, without axial guidance
Structural features bearing code
RSTO no outer wall, a cage, curved rolling surface
RSTO .. ​​X sealed, no inner cylindrical roller surface
STO no outer wall, a cage, curved rolling surface
STO .. ​​X double sealed, no inner cylindrical roller surface
RNA22 .. 2RS outer pairs of ribs, with cage, curved rolling surface
RNA22 .. 2RS X double sealed inner cylindrical rolling surface
NA22 .. 2RS outer pairs of ribs, with roll cage curved surfaces
NA22 .. 2RS X double sealed inner cylindrical rolling surface
Two, with axial guidance
Structural features bearing code
NATR the cage with curved inner surface or cylindrical roller rolling surface
NATR .. PP has a cage inner curved surface or cylindrical roller rolling surface
NATV full complement needle roller surface or a curved inner surface of the cylindrical roller
NATV .. PP full complement needle roller surface or a curved inner surface of the cylindrical roller
NUTR full complement cylindrical roller rolling with curved inner surface
NUTR .. X full complement cylindrical roller with an inner ring cylindrical roller
Type
Number
(Mm) sealed cylindrical outer CF5 CF6 CF8 CF10 CF10-1 CF12 CF12-1 CF16 CF18 CF20 CF20-1 CF24 CF24-1 CF30 CF30-1 CF30-2
Spherical outer CF5R CF6R CF8R CF10R CF10-1R CF12R CF12-1R CF16R CF18R CF20R CF20-1R CF24R CF24-1R CF30R CF30-1R CF30-2R
A sealed cylindrical outer CF
5UU CF
6UU CF
8UU CF
10UU CF
10-1UU CF
12UU CF
12-1UU CF
16UU CF
18UU CF
20UU CF
20-1UU CF
24UU CF
24-1UU CF
30UU CF
30-1UU CF
30-2UU
Spherical outer CF
5UUR CF
6UUR CF
8UUR CF
10UUR CF 10-1UUR CF
12UUR CF 12-1UUR CF
16UUR CF
18UUR CF
20UUR CF 20-1UUR CF
24UUR CF 24-1UUR CF
30UUR CF 30-1UUR CF 30-2UUR

Curve of the wheel bolts as part of the raceway is hardened. To avoid stress concentration, thick-walled outer roller surface arc-shaped out of the loop. Curve with two rollers single and double seals, without seals, with seal ring a variety of models. Grease a large space with a storage ring, providing permanent lubrication, and extended lubrication intervals. N220 or PTFE gasket material for its operating temperature ranges of -30 ° C to +100 ° C or -30 ° C to +180 ° C. Dense loading curve wheel it can withstand heavy loads, but the speed is low, and it must always be lubricated.
Supporting roller has thick-walled outer ring, take advantage of this outer ring, the wheel can roll in the raceway, and can withstand large loads. VG-bearing roller pressure roller, eccentric roller, roller rocker. Wheel diameter cylindrical or spherical. Spherical outer ring can make use of the tilt position when installing compensated.
RSTO and STO-bearing rollers
DF-Series RSTO type roller bearing without inner ring, roller bearing can be directly used as a raceway shaft quenching operation. STO-belt inner ring, with its inner and outer rings and needle roller cage assembly can be installed separately. As RSTO and STO-bearing roller ring without ribs and the end, the installation must have axial guidance, its guiding surface is at least precision lathe.

RNA22 ... 2RS, NA22 ... 2RS-bearing roller
This wheel diameter wheel with STO same series. They just slightly wider, double sealed structure makes no maintenance, use temperature range is -20 ℃ -120 ℃. Installed without inner ring RNA22 ... 2RS series of roller bearing should pay attention not to damage the seals. Outer boot needs to end.

NATR and NATR ... PP-bearing roller
NATR series of roller bearing includes an outer ring, inner ring, roller cage assembly and pressed into and fixed to the inner side of the ring. NATR ... PP series also additional sealing ring. The wheel bearing grease with a large storage space, long-term use without greasing.

NATV and NATV ... PP-bearing roller
NATV series of roller bearing roller with NATR series is basically the same, the only difference is NATV series full complement needle roller type. So it can withstand heavy loads at low speeds, but must pay attention to regular lubrication. NATV ... PP series with seal structure.

NUTR-bearing roller
NUTR series of roller bearing is double row full complement cylindrical roller bearings, the outer ring guided by the ribs. All parts are made of bearing outer ring pressed into the sealing cap to form a complete unit, the sealing cover and the thrust ring together form a highly efficient clearance seal. The wheel bearing can withstand very heavy loads, because the rolling elements with axial guidance, even at high speeds can also withstand the impact of axial loads.

Tolerance
DF-bearing roller curve wheel size, shape and rotation precision usually is P0 level. Diameter with a circular arc curve roller bearing roller diameter tolerance is 0/-0.05mm, NATR, NATV, NUTR bearing width tolerance h12, curve wheel stud diameter tolerance h7.

Adjustable Mind
Diameter cylindrical roller bearing with adjustable concentric small. At low load, it is about 3-4 ', in the medium to high load of 5-7'. With arc-shaped outer concentric bearing wheel adjustable 15-20 '. When a larger angle error, according to the size of the load there is significant edge stresses, it will reduce bearing life.

KR and KR ... PP curve roller
In KR, KR ... PP curve roller, there is a cage-guided needle roller and outer ring on the ring via a bolt axial guidance. For heavy loads and medium speed. Because there is more inside the bearing grease storage space, so lubrication intervals have been extended. KR ... PP curve roller is in contact with the seal structure. Using a temperature of -30 ℃ -100 ℃.

KR and KR ... PP curve roller
KRV and KRV ... PP curve roller KRV and KRV ... PP type curve rollers
KRV, KRV ... PP curve roller and KR, KR ... PP curve roller same structure, only that they are full complement needle roller bearings. They can withstand heavy loads and low speeds. And must always grease.

NUKR curve roller
This series curve roller is double row full complement cylindrical roller structure. Cylindrical roller bearings like the same with the outer ring axially guided by the rolling body pressed into the outer casing and the wall composed of high-level effect of the gap seal.
This curve can withstand particularly high wheel loads, as well as due to the axial roller guide can also withstand the impact of axial load.

KRE, KRE ... PP, KREV, KREV ... PP, NUKRE curve roller
All models are available with eccentric roller curve supply. The end face of the roller bolt grooves can be adjusted. The bolt face marked "HSB" Department said eccentric sleeve highest point. Grease both ends by bolts.