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John Deere 0397802 Bearing
RDO Equipment Co.
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RDO Equipment Co.
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John Deere Bearing ; SKU: 0397802 ; Fits On. 50D - Excavator 50D Compact Excavator (S.N. 244001-274999) - PC9409 50D - Excavator 50D Compact Excavator (S.N. ...
0397802: Bearing | Shop.Deere.com
John Deere
https://shop.deere.com › ... › Roller Bearings
John Deere
https://shop.deere.com › ... › Roller Bearings
0397802: Bearing. Have confidence this part fits your equipment. View Equipment Diagrams. Original. 0397802: Bearing. Part Number: 0397802.
Free delivery over $5030-day returns
Bearing 0397802 for Hitachi EG30 EX50UR EX55UR ...
FridayParts
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FridayParts
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Bearing 0397802 for Hitachi EG30 EX50UR EX55UR HX120B HX140B VR308 VR408 ZR600TS ZR800TS ZX40U ZX50U ZX52U-3. Replacement Part Number: 0397802.
$387.99In stockFree delivery90-day returns
Travel Motor Bearing 0397802 for Hitachi EX50UR & More
Alibaba.com
https://www.alibaba.com › product-detail › Travel-mot...
Alibaba.com
https://www.alibaba.com › product-detail › Travel-mot...
Travel motor bearing 0397802 for Hitachi EX50UR EX55UR ZX40 ZX50 ZX55 ZX60 ZX65. HAIH offers new, durable bearings with a 3-month warranty.
$29.56Out of stock(23)
Wholesale Final Drive 0397802,Custom ...
Guangzhou HongJue Bearing Co., Ltd
https://www.zhzbbearing.com › final-drive-0397802_sp
Guangzhou HongJue Bearing Co., Ltd
https://www.zhzbbearing.com › final-drive-0397802_sp
0397802 bearings are used in the Excavator Final drive system of Hitachi ： 0397802 Double row angular contact ball bearings 0397802 BRG.
BRG. 0397802 - Hitachi
AVSpare.com
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AVSpare.com
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Bearing 0397802 for Hitachi EG30 EX50UR EX55UR HX120B HX140B VR308 VR408 ZR600TS ZR800TS ZX40U ZX50U ZX52U-3. Bearing 0397802 for Yanmar Engine 4TNV88C ...
Zhzbbearing.com: Wholesale HITACHI Bearing 0397802, ...
Guangzhou HongJue Bearing Co., Ltd
https://www.zhzbbearing.com › hitachi-bearing-039780...
Guangzhou HongJue Bearing Co., Ltd
https://www.zhzbbearing.com › hitachi-bearing-039780...
0397802 bearings are used in the Excavator Final drive system of Hitachi ： 0397802 Double row angular contact ball bearings 0397802 BRG.
Hitachi Excavator Travel Gearbox Bearing 0397802 039- ...
roller-ball-bearing.com
https://www.roller-ball-bearing.com › sale-34974518-hi...
roller-ball-bearing.com
https://www.roller-ball-bearing.com › sale-34974518-hi...
Features: 1. High -strength high -quality steel 2. In can bear the load from both axial and radial at the same time. 3. Special bearings for excavators ...
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Which is better, ZZ or 2RS bearing?
ZZ Bearings (Double Metal Shield)
- Shielding: Non-contact metal shields on both sides.
- Protection: Blocks larger debris but allows fine dust, moisture, and liquids to enter.
- Friction/Speed: Very low friction, minimal heat, suitable for higher speeds.
- Best For: Clean, dry environments where high speed is crucial.
This video explains how to read bearing designations:
#simplegyan
YouTube · Sep 24, 2025
2RS Bearings (Double Rubber Seal)
- Shielding: Contacting rubber seals on both sides.
- Protection: Excellent barrier against fine dust, water, and contaminants.
- Friction/Speed: Higher friction and heat due to contact, limiting maximum speed.
- Best For: Dirty, humid, or wet conditions where maximum sealing is needed.
How to Choose
- Choose ZZfor skateboards, RC cars, or anything in a clean workshop where speed and low drag matter.
- Choose 2RSfor outdoor equipment, garage doors, or conveyor rollers exposed to dirt and moisture.
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Bearings : ZZ vs 2RS - Advice - V1 Engineering Forum
Apr 1, 2017
V1 Engineering Forums
Do you know the difference between the 2RS and ZZ type bearing ...
Jun 22, 2022 — Do you know the difference between the 2RS and ZZ type bearing shields? Let's find out! 👇🏻 - ZZ (double-sided metal shi...
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CRAFT bearings
What is better for garage doors Rollers? 6200-2RS or 6200-ZZ?
Jan 3, 2025
Reddit ·
r/GarageDoorService
Blog :: Bearing Difference between ZZ and 2RS
Jun 3, 2024
Omrook
ZZ vs 2 RS Sealing Options | Conveyor Product and Solutions
Mar 3, 2022 — ZZ is a non contact seal and is the most commonly found bearing seal found on conveyor rollers. This non-contact seal p...
Conveyor Product and Solutions
2RS or ZZ ?
Oct 7, 2006
SOHC4 forum
Which Bearing Closures Are Best? - Bearing Centre
Feb 24, 2019 — A popular type of sealed bearing is the 2RS which features a moulded rubber (nitrate) seal, bonded to a steel insert a...
Bearing Centre
A Comprehensive Guide to Bearings Seals: Types, Functions, and ...
Z or ZZ: These designations refer to metal shields. Z generally signifies a single metal shield on one side of the bearing, while ...
BDS Bearing
The Difference between Bearings Shields And Rubber Seals
Which Bearing Is Better, ZZ Or 2RS? Whether you choose ZZ or 2RS bearings depends on what you're doing. If you need high speed and...
bywbbearing.com
Single-row deep groove ball bearings with a shield or seal - ZKL
Single-row deep groove ball bearings with a shield or seal can carry the same loads as standard open single-row deep groove ball b...
ZKL Group
2RS Bearings vs. ZZ Bearings: Which is Better for Your Application?
What do 2RS and ZZ stand for? ZZ type seals are non-contact seals and are the most common type of bearing seal on conveyor rollers...
NSAR Bearings
2RS Bearings vs. ZZ Bearings: Which is Better for Your Application?
Which bearing is better? There is no single answer—it depends on the specific application. If your equipment operates in a dirty,
NSAR Bearings
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What do z and zz mean on a bearing?
Z or ZZ: These designations refer to metal shields. Z generally signifies a single metal shield on one side of the bearing, while ZZ indicates metal shields on both sides, offering protection against larger particles but not necessarily providing as much defense against finer contaminants as rubber seals.
A Comprehensive Guide to Bearings Seals: Types, Functions, and ...
BDS Bearing
https://www.bdsbearing.com › blog › guide-to-bearings-...
BDS Bearing
https://www.bdsbearing.com › blog › guide-to-bearings-...
What does 2RS stand for on a bearing?
What the "2RS" means:
- 2 (Two): Indicates seals on both sides of the bearing.
- RS (Rubber Seal): Signifies contact-type rubber seals that press against the inner ring.
Key Characteristics:
- Protection:Superior defense against contaminants like water, grime, and dust.
- Lubrication:Comes pre-lubricated with grease and is generally considered "sealed for life," meaning you can't easily add more grease.
- Friction:The rubber seals create more friction than metal shields (ZZ), which can slightly limit maximum speed compared to ZZ bearings.
- Applications:Common in outdoor equipment, automotive parts (like wheel hubs), industrial machinery, and anywhere contamination is a concern.
2RS vs. ZZ (Metal Shields):
- 2RS (Rubber Seals):Better sealing, more protection, lower speed (slightly), higher friction, ideal for dirty conditions.
- ZZ (Metal Shields):Lower friction, higher speed, less protection (not fully sealed), best for clean environments.
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Bearing Basics – endurobearings.com
2RS literally means “2 Rubber Seals”. Enduro Bearings manufactures special seals designated “LLB” and “LLU” for most bearing assem...
endurobearings.com
Customer Questions & Answers - Amazon.com
RS means seal on one side only and that bearing can only be lubricated from the unsealed side; 2RS would be a double sealed bearin...
Amazon.com
A Comprehensive Guide to Bearings Seals: Types, Functions, and ...
Metal Seals (2RS) Contact Seals (2RS): Metal seals, indicated as 2RS in bearings, involve a more direct contact with the inner bea...
BDS Bearing
6203-2RS-8 Bearing vs 6203-2RS: Key Differences Explained
The “2” indicates its dimensional series. The “03” corresponds to a 17 mm bore size, and “2RS” means the bearing is sealed on both...
blog.pgnbearings.com
Types of Ball Bearing Seals And Their Codes Explained | TFL
Quick Guide to Read Ball Bearing Codes * Z or ZZ: Metal shields (non-contact, low friction). * RS or 2RS: Rubber seals (contact,
sdtflbearing.com
The Difference between Bearings Shields And Rubber Seals
When you see “2RS” on a bearing, it means it has two rubber seals, one on each side. Those seals do a great job of keeping out thi...
BYWB Bearing
2RS Bearings vs. ZZ Bearings: Which is Better for Your Application?
Therefore, they are ideal for: Outdoor equipment. Agricultural machinery. Conveyors and industrial machinery operating in dusty or...
NSAR Bearings
2RS Bearings vs. ZZ Bearings: Which is Better for Your Application?
Which bearing is better? There is no single answer—it depends on the specific application. If your equipment operates in a dirty,
NSAR Bearings
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What does C3 mean on bearings?
A C3 bearing has a greater than normal internal clearance, which is the space between the inner and outer rings that allows for radial movement. This extra clearance is necessary for applications that generate significant heat or operate at high speeds, as it accommodates thermal expansion and prevents the bearing from binding under stress. Common applications for C3 bearings include electric motors and industrial machinery.
What C3 clearance means
- Increased internal clearance:The space between the rolling elements and the raceways is larger than a standard bearing (C0).
- Accommodates thermal expansion:The extra room prevents the bearing from seizing up when the components expand due to high temperatures from friction or the operating environment.
- Suitable for high speeds:The increased clearance is ideal for high-speed applications where thermal expansion is a major factor.
Common applications
- Electric motors:These operate at high speeds and generate heat, requiring extra clearance for expansion.
- Industrial machinery:Heavy machinery often experiences high speeds and loads that create heat, making C3 bearings a suitable choice.
- Automotive systems:Various parts in a vehicle's drivetrain may require C3 bearings due to high-speed operation and temperature fluctuations.
How to choose the right bearing
- The choice of bearing clearance is not arbitrary; it's based on a calculated analysis of the operating conditions, including temperature, speed, and load.
- A C3 bearing is not a suitable replacement for a standard bearing if the application does not require it, as it may lead to other issues like insufficient lubrication.
- For applications with lower speeds or precise alignment, a standard bearing or one with less clearance (like C2) may be more appropriate.
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What is the meaning of C3 in bearing?
Mar 9, 2021
Quora
What are the advantages of using a C3 bearing in place ... - Quora
Jan 29, 2020 — * What are the advantages of using a C3 bearing in place of a standard bearing? * There are 3 “C” type bearings, ofte...
Quora
What is Bearing Clearance and Why is It Important? | Regal Rexnord
Nov 20, 2025
Regal Rexnord
Meaning of C3 for FAG bearings
What does the suffix C3 for FAG bearings mean? "C3" is the suffix of FAG bearing desination, means: Internal clearance C3, which g...
Coolen bearings
What is C1 C2 C3 bearing clearance? - Loyal Bearings
The minimum C2 value is determined by the race diameter and tolerances specified for each series of bearings. For example, SKF spe...
Loyal Bearings
Bearing Clearance, what is C3?
Sep 15, 2021 — C3 bearings are the same quality as non-C3 bearings, but have a different purpose. They are typically suited to high-s...
Aire Bearings
Understanding Bearing Clearance and Its Applications
The bearing code C3 defines the internal clearance of the rolling bearing, with to internal clearance being greater than normal cl...
Loyal Bearings
Understanding C3 Clearance in Radial Ball Bearings
Definition of C3 Clearance C3 clearance refers to radial internal spacing, which is greater than the normal clearance CN for a bea...
Loyal Bearings
Frequently Asked Questions at Simply Bearings
C3, C4, and C5 bearings are designed to handle high-speed environments where excess heat is generated. They have an additional int...
Simply Bearings
PFI Bearing 6903-2RS C3 - 17x30x7mm • Bike Society
Specifically, C3 clearance indicates a greater clearance between the rolling elements and the inner and outer raceways compared to...
Bike Society
Classification and characterization of bearings, eShop: ebearing.com.ua
However, this classification is in some case conditional, since many types of bearings can meet different requirements. Therefore,
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Custom Hitachi 0397802 Bearing-main For ZX40U-5A ...
Pinterest · sales1_zhzb
4 years ago
Pinterest · sales1_zhzb
4 years ago
Replace your Hitachi 0397802 bearing-main with this high-quality excavator final drive bearing. Perfect for Hitachi CG15D, EG30, EX50UR, ...
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