Sealed Carb Toroidal Roller Bearing (C4040-2CS5V/GEM9)

Basic Info

Model NO.	C4040-2CS5V/GEM9
Separated	Unseparated
Bearing Number	C4040-2CS5V/Gem9
Inner Diameter	200mm
Outer Diameter	310mm
Weight	31kg
Transport Package	Wooden Boxes
Specification	ISO9001: 2008
Trademark	LYHY
Origin	China
HS Code	84828000
Production Capacity	800PCS/Year

Product Description

CARB toroidal roller bearings
CARB toroidal roller bearings. combine the self-aligning capability of spherical roller bearings with the axial displacement ability of cylindrical roller bearings. CARB bearings can also have the

compact cross section and high load carrying capacity normally associated with needle roller bearings.

CARB bearings are intended exclusively as non-locating bearings. They can simplify locating/non-locating bearing arrangements because thermal expansion of the shaft can be accommodated within the

bearing virtually without friction. Bearing systems consisting of a spherical roller bearing in the locating position and a CARB bearing in the non-locating position. provide a space- and weight-

saving bearing system with a low cost of ownership. CARB bearings can reduce noise and vibration levels, for example, in paper machines and fans.

CARB bearings are single row bearings with long, slightly barrel-shaped symmetrical rollers. The outer ring has a torus-shaped raceway with a profile radius extending beyond the centre of the

bearing. The inner ring raceway is shaped accordingly. The rollers of CARB bearings are self-guiding, i.e. they always adopt the position where the load is favourably distributed over the roller

length, irrespective of whether the bearing rings are misaligned or axially displaced. The ability to distribute loads favourably keeps the friction and frictional heat at low levels. Lower

operating temperatures extend the service life of the lubricant and the bearing.
Factors that influence CARB bearing performance

Bearing performance is not only determined by load or speed ratings. There are a number of other factors that contribute to bearing performance. To a large extent, performance is influenced by the

geometry of the rollers, raceways and cages, the heat treatment, as well as the surface finish of all contact surfaces. Main factors which influence CARB bearing performance include, but are not

limited to:
Symmetrical rollers
Symmetrical rollers self-adjust, providing optimal load distribution along the roller length. This keeps stresses low under all load conditions and extends bearing service life

Roller tolerances
The rollers in a CARB bearing are manufactured to extremely tight tolerances for dimension and form. Each roller is virtually identical in size and shape to the other rollers in the set. This

optimizes load distribution over the rollers to maximize bearing service life.

Special roller profile
The roller profile determines the stress distribution in the roller/raceway contact area. The special profile distributes loads more evenly along the rollers and prevents stress peaks at the

roller ends to extend bearing service life.

Self-guiding rollers
Self-guiding rollers keep friction and frictional heat at low levels.

Here below are some of the CRAB toroidal roller bearings we supply :

Bearing No.	d/mm	D/mm	B/mm	Weight/kg
C4916V	80	110	30	0.86
C4915V	75	105	30	0.82
C4917V	85	120	35	1.3
C4918MB	90	125	35	1.3
C5920V	100	140	54	2.7
C3024	120	180	46	3.95
C3026	130	200	52	5.9
C3032	160	240	60	9.6
C3034	170	260	67	12.5
C4036V	180	280	100	23.5
C3056	280	420	106	50.5
C3988M	440	600	118	99
C3992M	460	620	118	100
C39/600M	600	800	150	215
C39/670M	670	900	170	315
C39/1000MB	1000	1420	308	1680
C39/1060MB	1060	1400	250	1120
C30/1250MB	1250	1750	375	2980
C48/1320MB	1320	1600	280	1250
C39/1500MB	1500	1950	335	2710
C4030-2CS5V/GEM9	150	225	75	10
C4130-2CS5V/GEM9	150	250	100	20.5
C4038-2CS5V/GEM9	190	290	100	24.5
C4138-2CS5V/GEM9	190	320	128	43.5
C4040-2CS5V/GEM9	200	310	109	31
C4140-2CS5V/GEM9	200	340	140	54.5