21311E1KC3 Double Row Spherical Roller Bearings

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21311E1KC3

Bore Diameter:55 mm

Outside Diameter:120 mm

Width:29 mm

Weight:1.19 kg

Min. Order:1 Piece

The 21311E1KC3 Double-row spherical roller bearings are suitable for heavy-load, impact, and eccentric conditions. Classic applications include vibrating screen exciters, crushers, fans, paper machine press rolls, mining conveyor equipment, and marine propulsion shafts.

The 21311E1KC3 bearing is a Double row spherical roller bearings with an inner diameter of 55 mm , an outer diameter of 120 mm, a width of 29 mm. GCr15, GCr15SiMn, SUJ2 rings, GCr15, SUJ2 rolling mlement. Its dynamic radial rated load is approximately 159942 N, its static radial rated load is approximately 154936 N. It uses C3 standard radial clearance, together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.

Dimensions:

Inside Diameter:

55 mm

Outside Diameter:

120 mm

Thickness:

29 mm

Weight:

1.19 KG

Performance Data:

Dynamic load Capacity, Radial (Cr):

159942

Static load Capacity, Radial (Cor):

154936

Fatigue Load Limit, Radial:

20139

Reference speed (Grease rpm):

5092

Limiting speed (Oil rpm):

6299

Specifications:

Structure:

Spherical Roller Bearings

Number of Rows:

Radial Clearance Trade No.:

Bearing Material:

GCr15, GCr15SiMn, SUJ2

Cage Type:

JPA = Stamping steel cage

Rolling Mlement Material:

GCr15, SUJ2

Bore Type:

K = Tapered bore (K = taper 1:12)

System of Measurement:

Metric

Series:

213..-E1-K-C3

Rolling Element:

symmetrical rollers

Transaction Information:

Transport Package:

Standard Export Package

Service:

7*24 hour

Shipping Ways:

by Sea or Air

Country of Origin:

china

Stock:

10 Piece

Port:

Tianjin, Shanghai, Shenzhen, Guangzhou or Qingdao

Payment term:

by T/T in advance

Delivery time:

2-3 days for stock, 25-30 days for bulk production

Detailed description

21311E1KC3 bearings have the advantages of Self-aligning, high load-bearing capacity, impact resistant, and adaptable to heavy loads, and are therefore widely used in the Gearboxes, drive shafts, conveying equipment, general machinery.

Part Number	21311E1KC3
Design Type	E1 = without central rip
Bore Type	K = Tapered bore (K = taper 1:12)
RIC	C3
Row	2
Bearing Type	Double row spherical roller bearings
Manufacturer Part Code	21311E1KC3
Original Code	21311-E1-K
Cage	JPA = Stamping steel cage
Measurement	Metric
d φ Inside [inch]	2.165
D Φ Outside [inch]	4.724
B Width [inch]	1.142
n_B Reference speed (grease) [min^–1]	5092
n_G Limiting speed (oil) [min^–1]	6299
Weight [kg]	1.19
r(min.) Chamfer [inch]	0.079
D₁ [inch]	3.870
d₂ [inch]	2.811
d_s [inch]	0.126
n_s [inch]	0.256
C_r Radial Dynamic [lbf]	35954
C_0r Radial static [lbf]	34829
C_ur Radial Fatigue [lbf]	4527
Temperature - T(min)[°C]	-30
Temperature - T(max)[°C]	up +200
Mounting dimensions
d_a(min.) [inch]	2.598
D_a(max.) [inch]	4.291
r_a(max.) [mm]	1.19
Calculation coefficient
e	0.24
Y₀	2.78
Y₁	2.84
Y₂	4.23

The 21311E1KC3 Double-row spherical roller bearings mainly consist of an inner ring, an outer ring, two rows of spherical rollers, a cage, and seals. The outer ring raceway has a spherical structure, while the inner ring has a double-row raceway. The rollers and raceways are logarithmically curved. The cage is typically made of stamped steel or machined brass.

Double-row spherical roller bearings possess excellent self-aligning properties, compensating for shaft deflection, installation errors, and misalignment. They can simultaneously withstand radial loads and bidirectional axial loads, exhibiting extremely high load-bearing capacity and strong impact resistance. Furthermore, the internal clearance can be optimized for vibration conditions, effectively reducing frictional temperature rise.

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High quality 21311E1KC3 ( 1.19 kg Mass, ID: 55 mm OD: 120 mm WD: 29 mm , 213..-E1-K-C3 Series , 2 Rows , C3 Radial Clearance , GCr15, GCr15SiMn, SUJ2 Material , 159942 Radial dynamic , 154936 Radial static ), Just click the button " Contact Now " to mention your purchase Requirement , Quantity and Contact Method of your requested Bearing Item No. 21311E1KC3. then click the button " Send " The web site will make your purchasing information sent to the supplier's mailbox, who will come to contact you upon they get your information at the first time.

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