Iron shielded deep groove ball bearing is one type of ball bearings. shields are non-contact metallic (carbon or stainless steel) devices which allow high-speed operation but offer limited protection against the ingress of moisture and dirt. but do not protect against liquids. They add no friction during operation and therefore do not generate heat build-up. Iron shielded deep groove ball bearings often have steel shields installed on one or both sides and are pre-lubricated with grease. While many different retainers are available, pressed steel cages are most commonly used.
With one shield (-Z) on one side or two shields (-2Z/ZZ) on both sides; Due to the manufacturing processes used, open bearings can have turned recesses in the outer ring for shields.
XKTE - Ball Bearings and Rolling Bearings in Conveyor Technology
XKTE is the specialist in rolling bearing technology for the mechanical application of continuous conveyors.
Feature of Rubber Sealed deep groove ball bearing:
Clearance:
Shielded bearing for conveyor idler usually need large clearance such as C3/C4, while can not use standard Bearing, they will cause big running resistance, brake and reduce lifetime of bearing. Bearing must be provided to ensure concentricity of the inner and outer race.
Super Finished Surface Technology
Dimensions such as the outer and inner diameters and the width are ground to micrometer (one-thousandth of a millimeter) precision, as is the groove, a key internal structure formed between the inner and outer rings in which balls run.
Thicker Inner & Outer Ring
The ring is the main part and the important part of the idler roller bearing. Best idler roller bearing has deep groove ball, and large clearance. But deep groove doesn`t mean to dig the channel with a simple way of enlarge the steel ball. The thickness of the bearing is certain, so to get the ball big and the groove deep will shorten service life. Our XKTE bearing uses way of thickening ring to get the standard of deep groove and large clearance, improves the anti-stuck performance, and effectively increases the service life.
Grease selection of roller bearing
Many customers ignore this most critical point. The thirty-thousands-hours operation is a very long term. This has to be guaranteed by enough quality and quantity grease. And this should also be taken into account of working in different seasons.
6200/6300 series deep groove ball bearing
6200/6300 series is well suited for low to heavy radial loads and can be configured for various application speeds and running precision requirements. Reinforced iron Retainer, Super-finished deep groove, smooth race, thicker inner and outer ring.
|
6200/6300 Series Deep Groove Ball Bearing
|
|
Model
|
Bore Size(mm)
|
Outer Diameter(mm)
|
High(mm)
|
Weight(kg)
|
ball no.
|
Cr(kN)
|
Cor(kN)
|
|
6204
|
20
|
47
|
14
|
0.106
|
8
|
12.8
|
6.65
|
|
6205
|
25
|
52
|
15
|
0.128
|
9
|
14
|
7.85
|
|
6305
|
25
|
62
|
17
|
0.232
|
7
|
20.6
|
11.3
|
|
6306
|
30
|
72
|
19
|
0.346
|
8
|
26.7
|
15
|
|
6307
|
35
|
80
|
21
|
0.457
|
8
|
33.4
|
19.3
|
|
6308
|
40
|
90
|
23
|
0.639
|
8
|
40.8
|
24
|
|
6309
|
45
|
100
|
25
|
0.837
|
8
|
52.8
|
31.8
|
|
6310
|
50
|
110
|
27
|
1.082
|
8
|
61.8
|
38
|
|
Material Chrome Steel GCr15
|
Types:
Nylon cage bearing: 6204KA---6308KA 6204KA/C3---6308KA/C3 6204KA/C4---6308KA/C4
Rubber Sealed bearing: 6204-2RS/RS---6310-2RS 6204-2RZ---6310-2RZ 180204---180308
Shielded Ball Bearing: 60204---60310 6204KA-Z---6308KA-Z 6204TN-Z---6308TN-Z 6204ZZ---6310ZZ
Packing:
|
