Blog
NTN Bearings Prefix Suffix
NTN Bearings Prefix Suffix Introduction:
NTN bearings prefix suffix meaning is different for different codes.
It’s essential to know the meaning of different prefixes and suffixes.
Front code, special purpose code, material heat treatment code:
4T: 4T tapered roller bearings. For example, 4T-3780/3720 bearing
ET: ET tapered roller bearings.
EAT: ET+ special heat treatment.
E: Heat treatment of bearing surface.
EA: Nitriding hard treatment.
TA: Nitriding heat treatment (SUJ3).
TM: Special heat-treated steel (SUJ3).
F: Stainless steel.
N: High-speed bearing.
M: Electroplated bearings.
5S: Ceramic rolling elements.
HL: HL roller bearing.
ECO: ECO-TOP tapered roller bearings.
LH: High temperature and long life bearing, dimensionally stable treatment (up to 250°C high temperature).
TS3: Dimensionally stable treatment (up to 200°C high temperature).
TS4: Dimensionally stable treatment (up to 250°C high temperature).
Contact angle Cod for NTN Bearings Prefix Suffix:
Angular contact ball bearings
A: Contact angle 30°, for example 7206A bearing
B: Contact angle 40°
C: Contatc angle 15°
Tapered roller bearings
B: The contact angle is greater than 10° to 17°
C: The contact angle is greater than 17° to 24°
D: The contact angle is greater than 24° to 32°
Internal change code for NTN Bearings Prefix Suffix:
U: Internal interchangeable tapered roller bearings.
R: Non-interchangeable tapered roller bearings.
ST: Low torque tapered roller bearings.
HT: High axial load cylindrical bearing.
Cage code：
L1: High-strength car-made brass cage.
F1: Car-made carbon steel cage.
G1: Square hole high-strength brass rivetless cage.
G2: Cut type cage.
J: Stamped steel cage.
T2: Resin cage.
Seal cover/dust cover code：
LLB: Rubber sealing ring (non-contact).
LLU: Rubber sealing ring (contact). For example, NTN 6307LLU bearing
LLH: Rubber sealing ring (low torque).
ZZ: Steel plate sealing cover.
External change code：
K: Cone inner diameter, standard ratio 1:12.
K30: The standard ratio of cone inner diameter is 1:30.
N: There is a stop groove.
NR: There is a stop ring.
D: There are oil holes.
D1: There are oil grooves and oil holes.
Dual configuration code：
DB: arranged back to back.
DF: Arrange face to face.
DT: arranged side by side.
D2: Double bearing.
G: Free combination.
Internal clearance/preload code：
C2: The clearance is less than normal.
CN: Normal clearance.
C3: The clearance is greater than normal.
C4: Clearance is greater than C3.
C5: Clearance is greater than C4.
CM: Clearance for the motor.
/GL: Light preload.
/GN: Ordinary preload.
/GM: Medium preload.
/GH: Heavy preload.
Precision code：
P6: JIS level 6.
P5: JIS grade 5.
P4: JIS level 4.
P2: JIS level 2.
2: ABMA Level 2.
3: ABMA level 3.
0: ABMA level 0.
00: ABMA 00 level.
Lubricant code：
/2A: Shell Alvania2 grease.
/3A: Shell Alvania3 grease.
/8A: Shell AlvaniaEP2i grease.
/5K: MULTEMP SRL.
/LX11: Barierta JFE552
/LPO3: Thermosetting plastic (solid grease).
Questions that help before the next bearing decision after NTN Bearings Prefix Suffix
Which next options usually help after reviewing NTN Bearings Prefix Suffix?
Most buyers benefit from one broader family destination, one more commercial route, and one supporting guide that answers the next practical question. That combination usually turns research into a clearer shortlist.
Why add related bearing destinations beside NTN Bearings Prefix Suffix?
Because the first answer often leads to a second question about fit, applications, supplier choice, or repeat-order confidence. Keeping those next destinations close reduces unnecessary backtracking.
When is it worth moving from reading into a quote or product review?
That move usually makes sense once the topic has narrowed the likely bearing family and the remaining unknowns are commercial, dimensional, or application-specific rather than purely educational.
What usually makes the next bearing decision easier after NTN Bearings Prefix Suffix?
The process is often easier when the wider family view, the more commercial destination, and one practical guide stay visible together. That keeps the decision grounded in both application detail and buying reality.
Buyer FAQ
Questions buyers ask before choosing the next bearing option
What is the main takeaway from NTN Bearings Prefix Suffix?
The main takeaway is that ntn bearings prefix suffix should be checked against the bearing family, dimensions, load direction, speed, and operating conditions instead of relying on the title or size alone.
When should I use this guide before requesting a quote?
Use the guide when you are comparing bearing models, checking suffix meanings, confirming seal or clearance choices, planning maintenance, or preparing details for replacement, production, or OEM sourcing.
How does this topic connect to bearing supply?
The topic supports the Bearing Supply decision path by helping buyers understand fit, performance, specification details, or maintenance factors before choosing a product page or contacting the team.
Can this guide replace a final specification check?
No. The guide helps prepare the decision, but a final check should still confirm the part number, dimensions, load, speed, seal, clearance, precision, application, and order quantity.
What should I send if I need help after reading this guide?
Send the bearing number, measured size, photos if available, application, quantity, and any special operating conditions. That gives the team enough context to recommend the right product family or quote route.
Need help checking fit, price, or lead time? Request a bearing quote
