21307CCK Spherical Roller Bearings, Stamped Steel Cages, Tapered Bore

🔍

21307CCK

Bore Diameter:35 mm

Outside Diameter:80 mm

Width:21 mm

Weight:0.55 kg

Min. Order:1 Piece

The 21307CCK 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 21307CCK bearing is a Spherical roller bearings, double row with an inner diameter of 35 mm , an outer diameter of 80 mm, a width of 21 mm. High-carbon chromium steel rings, High-carbon chromium steel rolling mlement. Its dynamic radial rated load is approximately 65367 N, its static radial rated load is approximately 71274 N. It uses Normal standard radial clearance, open type, together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.

Interchange code: NSK 21307CDK , NACHI 21307EK , FAG 21307EK.TVPB , SKF 21307CCK , TORRINGTON 21307KVCSJ ,

Dimensions:

Inside Diameter:

35 mm

Outside Diameter:

80 mm

Thickness:

21 mm

Weight:

0.55 KG

Performance Data:

Dynamic load Capacity, Radial (Cr):

65367 N

Static load Capacity, Radial (Cor):

71274 N

Reference speed (Grease rpm):

6698

Limiting speed (Oil rpm):

9478

Specifications:

Old Designations:

53307

Structure:

Spherical Roller Bearings

Number of Rows:

Radial Clearance Trade No.:

Normal

Bearing Material:

High-carbon chromium steel

Cage Type:

CC = stamped steel cages

Seals Type:

open

Rolling Mlement Material:

High-carbon chromium steel

Bore Type:

K = Tapered bore, taper 1:12

Operating Temperature:

-30 to +200 °C

System of Measurement:

Metric

Series:

213..-CCK

Rolling Element:

spherical rollers

Transaction Information:

Transport Package:

Standard Export Package

Service:

7*24 hour

Shipping Ways:

by Sea or Air

Country of Origin:

china

Stock:

200 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

21307CCK bearings ( 35 mm x 80 mm x 21 mm) 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	21307CCK
Manufacturer Part Code	21307CCK
Internal design	CC = Flangeless inner ring, guide ring centred on the inner ring, two stamped steel cages
Bearing Type	Spherical roller bearings, double row
m Weight [lb]	1.213
Seal type	open
Series	213..-CCK
Cage	CC = stamped steel cages
Bore Type	K = Tapered bore, taper 1:12
Radial internal clearance	Normal
Units	Metric
C_r Dynamic Radial [lbf]	14694
C_0r Static Radial [lbf]	16022
P_u Fatigue Radial [lbf]	1803
Operating temperature - T(min) [°C]	-30
Operating temperature - T(max) [°C]	+200
n_B Speed ratings (grease) [rpm]	6698
n_G Speed ratings (oil) [rpm]	9478
Heat stabilization	392 °F (200 °C)
Dimension
d φ Inside [inch]	1.378
D Φ Outside [inch]	3.150
B Width [inch]	0.827
d₂ [inch]	1.858
D₁ [inch]	2.583
r_a(max.) Fillet [inch]	0.059
r₁,r₂(min.) Fillet [inch]	0.059
Angular misalignment	1 degree
Abutment dimensions
d_a(min.) [inch]	1.732
D_a(max.) [inch]	2.795
Calculation factor
e	0.28
Y₁	2.4
Y₂	3.6
Y₀	2.5

The 21307CCK 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.

Share this product to:

Let more people see your product

How can you buy 21307CCK Spherical Roller Bearings, Stamped Steel Cages, Tapered Bore on the Internet?
High quality 21307CCK ( 0.55 kg Mass, ID: 35 mm OD: 80 mm WD: 21 mm , 213..-CCK Series , 2 Rows , Normal Radial Clearance , High-carbon chromium steel Material , 65367 Radial dynamic , 71274 Radial static ), Just click the button " Contact Now " to mention your purchase Requirement , Quantity and Contact Method of your requested Bearing Item No. 21307CCK. 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.

21307CCK Spherical Roller Bearings, Stamped Steel Cages, Tapered Bore

21307CCK Related Products »

Product Groups

Information

Category