OEM/ODM Supplier Bearing 51211 - Deep Groove Ball Bearing Manufacturers – Chengfeng Bearing

Feature

Deep groove ball bearings are composed of four basic parts, including inner ring, outer ring, steel ball and cage. Under normal operating conditions, the inner raceway, outer raceway and steel balls bear the load, and the cage separates and stabilizes the steel balls. The single row radial deep groove ball bearing has a simple structure, no separation of the inner and outer rings, and is easy to use. Deep groove ball bearings are mainly used to bear radial loads, and can also bear a certain amount of axial loads. When the radial clearance of the bearing is increased, it has the properties of a radial thrust bearing and can bear a large axial load. This type of bearing can limit the axial movement in two directions. According to the size of the clearance, the inner and outer rings are allowed to be inclined relative to each other by 8′~16.

In addition, since the friction torque of deep groove ball bearings is smaller than that of other types of bearings, they are more suitable for high-speed operating conditions.

Application:

Wide range of applications, such as precision instruments, low-noise motors, automobiles, motorcycles, woodworking machinery, textile machinery, mining machinery, electromechanical equipment, plastic machinery, office equipment, medical equipment, fitness, defense, aviation, aerospace and sports equipment and general Machinery, etc., is the most widely used type of bearing in the machinery industry.

Size range:
Inner diameter size range: 10mm~1320mm
Outer diameter size range: 30mm~1600mm
Width size range: 9mm~300mm
Tolerance: P0, P6, P5, P4, precision grades are available.
cage
Steel stamping cage, brass solid cage.
Supplementary code:
C2 radial clearance is smaller than ordinary group
C3 Radial clearance is larger than ordinary group
C4 radial clearance is greater than C3
C5 radial clearance is greater than C4
DB Two single row deep groove ball bearings paired back to back
DF Two single row deep groove ball bearings mated face to face
DT Two single row deep groove ball bearings paired in tandem
E Internal design changes, reinforced structure
J steel plate stamping cage
M Brass solid cage, ball-guided. Different designs and materials are marked with a number after M such as M2
MA Brass solid cage, outer ring guided
MB brass solid cage, inner ring guide
MT33 Lithium Grease, NLGI Consistency 3 Temperature Range -30 to +120°C (Standard Fill Level)
MT47 Lithium Grease, NLGI Consistency 2, Temperature Range -30 to +110°C (Standard Fill Level)
N Outer ring with retaining groove
NR outer ring with snap groove and snap ring
N1 has grooves on the side of the outer ring
P5 Dimensional and rotational accuracy to ISO tolerance class 5
P6 Dimensional and rotational accuracy to ISO tolerance class 6
The RS bearing has a skeleton rubber seal (contact type) on one side.
2RS Bearings with RS seals on both sides
The RS1 bearing has a skeleton rubber sealing ring (contact type) on one side, and the sealing ring material is vulcanized rubber.
2RS1 Bearings with RS1 seals on both sides
The RS2 bearing has a skeleton rubber sealing ring (contact type) on one side, and the sealing ring material is fluorinated rubber.
2RS2 Bearings with RS2 seals on both sides
RZ bearings have a skeleton rubber seal (non-contact) on one side.
2RZ Bearings with RZ seals on both sides
Z bearing with dust cover on one side
2Z bearing with dust cover on both sides
ZN Z+N The dust cover is on the opposite side of the stop groove.
ZNR Z+NR dust caps are on opposite sides of the snap groove and snap ring.
ZNB The Z+NB dust cover is on the opposite side of the stop groove.
ZNBR Z+NR dust cover is on the same side as the snap groove and snap ring.
2ZN 2Z+N Bearings are provided with dust caps on both sides, and there are retaining grooves in the outer ring.
2ZNR 2Z+NR Bearings have dust caps on both sides, and have snap grooves and snap rings on the outer ring.
V full complement of rolling elements (without cage)