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Deep groove ball bearing
2018-11-05 14:07:09

Deep groove ball bearings are suitable for high or even extremely high speed operation, and are very durable and need not be maintained regularly. This kind of bearing has small friction coefficient, high limit speed, varied size range and form. It is widely used in precision instruments, low noise motors, automobiles, motorcycles and general machinery industries. It is the most widely used type of bearing in machinery industry. It is mainly subjected to radial load and can also bear a certain amount of axial load.
Essential information

Deep groove ball bearings are the most common type of rolling bearings. This type of deep groove ball bearing consists of an outer ring, an inner ring, a group of steel balls and a group of retaining frames. There are two types of deep groove ball bearings: single row and double row. The structure of deep groove ball can be divided into two types: sealed and open. The open type refers to the bearing without sealing structure. The sealed deep groove ball can be divided into dust-proof seal and oil-proof seal. The dust-proof sealing cover material is made of steel sheet and only prevents dust from entering the bearing raceway. The oil proof type is a contact type oil seal, which can effectively prevent the grease from overflow in the bearing. The single row deep groove ball bearing type code is 6, the double row deep groove ball bearing code is 4. Its structure is simple and easy to use. It is the most widely used and most widely used kind of bearings.

Deep groove ball bearing

Deep groove ball suffix meaning
Radial clearance in the normal group of CNs; usually used only in combination with the following letters to indicate narrower or offset clearance ranges
H: narrow clearance range, equivalent to the upper part of the original clearance area.
L: narrow clearance range, equivalent to the lower part of the original clearance area.
P: The offset gap range, which corresponds to the upper half of the original gap range and the lower half of the lower half of the gap range, applies to the combination of the following gap groups: C2, C3, C4, and C5, such as C2.
C2: radial clearance is smaller than common group.
C3: radial clearance is larger than common group.
C4: radial clearance is greater than C3.
C5: radial clearance is greater than C4.
DB: two single row deep groove ball bearings with back-to-back matching.
DF: two single row deep groove ball bearings with face to face matching.
DT: two single row deep groove ball bearings in series.
E: enhanced design
GJN: polyurea grease, NLGI consistency 2, temperature range -30 to +150 degrees (standard filling volume)
GXN: polyurea grease, NLGI consistency 2, temperature range -40 to +150 degrees (standard filling volume)
J: stamping steel cage
LHT23: lithium grease, NLGI consistency 2, temperature range -50 to +140 degrees (standard filling volume)
LT: lithium grease, NLGI consistency 2, temperature range -55 to +110 degrees (standard filling volume)
LT10: lithium grease, NLGI consistency 2, temperature range -50 to +90 degrees (standard filling charge)
M: machine cutting brass cage, steel ball guide. Different designs and materials are added with digital identification after M, such as M2.
MA: machine cut brass cage, outer ring guide.
MB: machine cut brass cage, inner ring guide.
MT33: lithium grease, NLGI consistency 3, temperature range -30 to +120 degrees (standard filling volume)
MT47: lithium grease, NLGI consistency 2, temperature range -30 to +110 degrees (standard filling volume)
N: outer ring with stop groove.
NR: outer ring with stop groove and stop ring.
N1: there are grooves on the outer side of the outer ring.
P5: dimensional accuracy and rotation accuracy are in line with ISO tolerance grade 5.
P6: dimensional accuracy and rotation accuracy are in line with ISO tolerance grade 6.
P52:P5+C2
P62:P6+C2
P63:P6+C3
RS1: one side of the nitrile rubber (NBR) contact ring with steel skeleton.
RSH: one side of the nitrile rubber (NBR) contact ring with steel skeleton.
RSL: a low friction sealing ring with a steel skeleton on the side of the nitrile rubber (NBR).
RZ: a low friction sealing ring with a steel skeleton on the side of the nitrile rubber (NBR).
TH: fiber reinforced phenolic resin holder (card type)
TN: injection nylon cage
TN9: injection molded glass reinforced nylon 6, 6 cages.
VL0241: the outer surface of the outer ring is coated with alumina, and the insulation capacity is as high as 1000VDC
VL2071: the outer surface of the inner ring is coated with alumina, and its insulation capacity is as high as 1000VDC
WT: polyurea grease, NLGI consistency 2, temperature range -40 to +160 degrees (standard filling volume)
Y: stamping copper cage
Z: one side with stamping steel dust cover.
ZNR: outer ring with stop groove and stop ring. The other side of the stop groove has a stamping steel dust cover.
2RS1: nitrile rubber (NBR) contact ring with steel skeleton on both sides.
2RSH: nitrile rubber (NBR) contact ring with steel skeleton on both sides.
2RSL: low friction sealing ring with nitrile rubber (NBR) on both sides with a steel skeleton.
2RZ: low friction sealing ring with nitrile rubber (NBR) on both sides with a steel skeleton.
2Z: stamping steel dust cover on both sides.
2ZNR: outer ring with stop groove and stop ring, both sides with stamping steel dust cover.
Common suffixes with ball gaps.
C3: radial clearance is larger than common group.
N: outer ring with stop groove.
NR: outer ring with stop slot.
Z: one side with stamping steel dust cover.
ZNR: outer ring with stop groove and stop ring. The other side of the stop groove has a stamping steel dust cover.
2Z: stamping steel dust cover on both sides.
2ZNR: outer ring with stop groove and stop ring, both sides with stamping steel dust cover.
The meaning of stainless steel suffix:
R: outer ring flange.
VT378: nontoxic grease (accidental exposure to food ingredients)
2RS1: nitrile rubber (NBR) contact ring with steel skeleton on both sides.
2Z: stamping steel dust cover on both sides.
2ZR: both sides have stamping steel dust cover and outer ring with flange.
2 deep groove ball bearings

Deep groove ball bearings Deep Groove Ball Bearing
The most commonly used ball bearings and track trenches are radii with a slightly larger radius than the ball rotated on the trench.

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