What is the meaning of the deep groove bearing suffix?

deep groove bearing suffix meaning
CN: Normal group radial clearance; usually only used in combination with the following letters to indicate a narrow or offset clearance range
H: The narrowed clearance range is equivalent to the upper half of the original clearance range
L: The narrowed clearance range is equivalent to the lower half of the original clearance range
P: The offset clearance range, which is equivalent to the composition of the upper half of the original clearance range and the lower half of the next set of clearance ranges. The above letters are also applicable to the following combinations of clearance groups to form the corresponding meaning: C2, C3, C4, and C5, such as C2
C2: Radial clearance is smaller than the normal group
C3: Radial clearance is greater than the normal group
C4: Radial clearance is greater than C3
C5: Radial clearance is greater than C4
DB: Two single-row deep groove bearing paired in a back-to-back manner
DF: Two single-row deep groove bearing paired face-to-face
DT: Two single-row deep groove bearing paired in series
E: Strengthen the design

GJN: Polyurea-based grease, NLGI consistency 2, temperature range -30 to +150 degrees (standard filling amount)
GXN: Polyurea-based grease, NLGI consistency 2, temperature range -40 to +150 degrees (standard filling amount)
J: Stamped steel cage
LHT23: Lithium-based grease, NLGI consistency 2, temperature range -50 to +140 degrees (standard filling amount)
LT: Lithium-based grease, NLGI consistency 2, temperature range -55 to +110 degrees (standard filling amount)
LT10: Lithium-based grease, NLGI consistency 2, temperature range -50 to +90 degrees (standard filling charge)
M: Machined brass cage, guided by steel balls. Different designs and materials add digital logos after M, such as M2
MA: Machined brass cage, outer ring guide
MB: Machined brass cage, inner ring guide
MT33: Lithium-based grease, NLGI consistency 3, temperature range -30 to +120 degrees (standard filling amount)
MT47: Lithium-based grease, NLGI consistency 2, temperature range -30 to +110 degrees (standard filling amount)
N: Outer ring with stop groove
NR: Outer ring with stop groove and stop ring
N1: There are grooves on the side of the outer ring (used to cooperate with the stop device to prevent the outer ring from rotating)

P5: Dimensional accuracy and rotation accuracy comply with ISO tolerance level 5
P6: Dimensional accuracy and rotation accuracy comply with ISO tolerance level 6
P52: P5+C2
P62: P6+C2
P63: P6+C3
RS1: Nitrile diene rubber (NBR) contact seal ring with steel frame on one side
RSH: Nitrile diene rubber (NBR) contact seal ring with steel frame on one side
RSL: Nitrile diene rubber (NBR) low-friction sealing ring with steel frame on one side
RZ: Nitrile diene rubber (NBR) low-friction sealing ring with steel frame on one side
TH: Fiber-reinforced phenolic resin cage (card type)
TN: Injection molded nylon cage
TN9: Injection molded glass fiber reinforced nylon 6,6 cage

VL0241: The outer surface of the outer ring is coated with alumina, and the insulation capacity is up to 1000VDC
VL2071: The outer surface of the inner ring is coated with aluminum oxide, and the insulation capacity is up to 1000VDC
WT: Polyurea-based grease, NLGI consistency 2, temperature range -40 to +160 degrees (standard filling amount)
Y: Stamped copper cage
Z: Stamped steel dust cover on one side
ZNR: The outer ring has a stop groove and a stop ring, and the other side of the stop groove has a stamped steel dust cover
2RS1: Nitrile rubber (NBR) contact seal ring with steel frame on both sides
2RSH: Nitrile butadiene rubber (NBR) contact seal ring with steel frame on both sides
2RSL: Nitrile butadiene rubber (NBR) low-friction sealing ring with steel frame on both sides
2RZ: Nitrile butadiene rubber (NBR) low friction seal ring with steel frame on both sides
2Z: Stamped steel dust cover on both sides
2ZNR: Outer ring with stop groove and stop ring, stamped steel dust cover on both sides

The commonly used suffixes of deep groove bearing with ball notch:
C3: Radial clearance is greater than the normal group
N: Outer ring with stop groove
NR: Outer ring with stop groove and stop ring
Z: Stamped steel dust cover on one side
ZNR: The outer ring has a stop groove and a stop ring, and the other side of the stop groove has a stamped steel dust cover
2Z: Stamped steel dust cover on both sides
2ZNR: Outer ring with stop groove and stop ring, stamped steel dust cover on both sides

The meaning of the suffix of stainless steel deep groove bearing:
R: Outer ring with flange
VT378: Non-toxic grease (accidentally in contact with food materials)
2RS1: Nitrile rubber (NBR) contact seal ring with steel frame on both sides
2Z: Stamped steel dust cover on both sides
2ZR: stamped steel dust cover on both sides and outer ring with flange

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