21310 E 21310 EK Radial Spherical Roller Bearing 50x110x27mm For Industrial Fans

21310 E 21310 EK Spherical roller bearings are self-aligning bearings that are consequently insensitive to misalignment of the shaft, they have two rows of rollers so they are able to carry heavy radial loads, all sizes are available with cylindrical or tapered bores.

21310 E 21310 EK 50x110x27mm spherical roller Bearing with tapered bore OR Cylindrical bore

Dimensions - d (inside diameter) 50mm

Dimensions - D (outside diameter) 110mm

Dimensions - B (width) 27mm

Rolling Body: Roller Bearings

Separation: Yes

The Number of Rows: Double

Cage Material: Steel Cage 08AI MA MB CC CA

Precision Rating: P0 P6 P5

Seals Type: Open

OEM Service: Acceptable

Sample: Available

Certification: ISO9001:2000

Export Markets: Global

C2 Radial internal clearance smaller than Normal

C3 Radial internal clearance greater than Normal

C4 Radial internal clearance greater than C3

C5 Radial internal clearance greater than C4

C08 Increased running accuracy to ISO tolerance class 5

C083 C08 + C3

C084 C08 + C4

2CS Sheet steel reinforced contact seal of acrylonitrile-butadiene rubber

(NBR) on both sides of the bearing. Grease fill 25 to 35 % with SKF LGEP 2 grease. Annular

groove and three lubrication holes in the outer ring.

2CS2 Sheet steel reinforced contact seal of fluoro rubber (FKM) on both sides of the bearing. Grease fill 70 to 100 % with a polyurea high temperature grease. Annular groove and three lubrication holes in the outer ring 2CS5 Sheet steel reinforced contact seal of hydrogenated acrylonitrile-butadiene rubber (HNBR) on both sides of the bearing. Grease fill 70 to 100 % with a polyurea high temperature grease. Annular groove and three lubrication holes in the outer ring

HA3 Case hardened inner ring

K Tapered bore, taper 1:12

K30 Tapered bore, taper 1:30

P5 Dimensional and running accuracy to ISO tolerance class 5

P6 Dimensional and running accuracy to ISO tolerance class 6

P62 P6 + C2

VA405 Bearing for vibratory applications

VA406 Bearing for vibratory applications

with PTFE-coated bore

VE552(E) Outer ring with three equally spaced threaded holes in one side face to accommodate hoisting tackle; the E indicates that appropriate eye bolts are supplied with the bearings

VE553(E) Outer ring with three equally spaced threaded holes in both side faces to accommodate

hoisting tackle; the E indicates that appropriate eye bolts are supplied with the bearings

VG114 Surface hardened pressed steel cages

VQ424 Running accuracy better than C08

VT143 Grease fill 25 to 35 % with SKFLGEP 2 grease

W No relubrication facility in the outer ring

W20 Three lubrication holes in the outer ring

 

The inner ring of spherical roller bearings have two raceways, outer raceway is a part of a sphere, whose curvature center is on the axis of bearings. This type of bearings possesses self-aligning performance, allowing the misalignment of shaft, and can also be used under certain permanent misalignment.
These bearings are able to carry higher radial loads, as well as certain axial loads, but can’t be used to carry pure axial loads. The osculation between rollers and raceways is high, and friction is higher than cylindrical roller bearings. Therefore, the limiting speed is lower.
This type of bearings is especially suitable to the heavy or vibrating load applications.
The type 20000C bearings have symmetrical rollers and pressed steel cages, no rib on inner ring, rollers are longer, load carrying capacity is high, and rollers are guided by a floating guide ring.
The type 20000CC bearings are the modified type to type 20000C, the friction between rollers and raceway is decreased, load carrying capacity is enhanced.
The type 20000CA bearings adopt symmetrical spherical rollers and machined solid cages, they have floating guide ring and integral ribs on inner rings.
The type 20000TN1 bearings use symmetrical rollers and nylon molded cages, no integral ribs and floating guide ring on inner ring, the cages are guided by rollers.
The type 20000CC, 20000CA and 20000TN1 bearings are developed in recent years and their internal design are optimized, should give priority to be used.

 

 

We JINHANG Precision bearing are a professional
Precision bearing manufacturer in the world, established in 2005, specializing in slewing bearings, slewing drives,rotary table bearing,crossed roller bearing,cylindrical roller bearing,tapered roller bearing,spherical roller bearing,thrust roller bearing thrust ball bearing,tandem bearing,pinion and other special machine parts, with design, production, sales, marketing and service all over the world. For the high precision bearing,our precision grade can reach to P5 P4 P2 class.

Our team advantage:
We have 70 employees, with 10 experienced engineers and professional technicists. The most of Engineer from LYC and ZWZ brand factory, they had owned produce and design and after sales experienced to design the bearing.We can also design the drawing according to the bearing work condition to meet the customer requirement.