Read Carefully Before Use
Keep for Future Reference
UM-BJS-0049-V1
Rear Axle Bearing
Puller & Press Set
User Manual
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Disclaimer
Read this disclaimer completely and carefully before
proceeding with the rest of the manual content.
1. Product Modifications
Any modifications or alterations to Orion Motor Tech (OMT)
products void any warranties and may result in damage or
injury. OMT shall not be liable for any damages resulting
from such modifications or alterations.
2. Compliance with Laws
Customers shall be liable for ensuring that the use of
OMT products complies with all applicable laws and
regulations in their respective jurisdictions. OMT shall not
be responsible for any violations of laws or regulations
resulting from the use of OMT products.
3. Correct Use
Always use OMT products only as directed in the
accompanying manuals. Failure to follow instructions may
result in injury or damage.
Always ensure the assembly, installation, operation,
maintenance, or repair of OMT products is carried out by
a competent person.
Regular maintenance should be performed throughout
the lifecycle of OMT products. You are responsible for
ensuring the products operate as intended.
Always wear appropriate protective gear.
4. Third-Party Products
OMT shall not be liable for any damages or losses
resulting from the use of third-party products in
conjunction with OMT products. Customers shall refer to
the third-party's guidelines and/or warranties (if any) for
any third-party products used.
5. Limitation of Liability
OMT shall not be liable for any direct, indirect, punitive,
incidental, special, or consequential damages to property
or life, whatsoever arising out of or connected with the
use or misuse of OMT products. In no event shall OMT’s
liability exceed the value of the products sold.
6. Warranty
Refer to the sales page for warranty information.
This disclaimer states the entire obligation of OMT with
respect to OMT products. If any part of this disclaimer is
determined to be void, invalid, unenforceable, or illegal,
including but not limited to the warranty disclaimers, liability
disclaimers, and liability limitations set forth above, the invalid
or unenforceable provision will be deemed superseded by
a valid and enforceable provision that most closely matches
the intent of the original provision and the remainder of the
agreement shall remain in full force and effect.
1
Safety Information
• ALWAYS perform all repairs in full compliance with your machinery’s service manual. After any repairs, test your
engine and machinery at low speed in your workshop before returning to normal use. Failing to do so may result in
serious property damage or severe personal injury.
• DO NOT allow children, individuals with mental or physical impairments, or those unfamiliar with this product and
compatible vehicle systems to use it. Unauthorized use may result in safety hazards.
• DO NOT use under the influence of alcohol, drugs, or medication that impairs judgment or reflexes. Keep children and
bystanders at a safe distance during use.
• NEVER touch any heated surface with exposed skin. Contact with hot machinery parts may cause severe burns.
• ALWAYS wear appropriate personal protective equipment (PPE) for your task. Use ANSI and OSHA-approved eye,
respiratory, and hand protection. Microscopic particles produced during normal use are known to cause cancer,
birth defects, and other reproductive harm in the state of California. Nonslip footwear is also highly recommended.
Depending on your work environment, additional protection such as ear, head, and body gear may be required.
• Keep your work site clean and well-lit. Cluttered or dark work areas increase the risk of accidents and injuries.
• ALWAYS familiarize yourself with your machinery’s safety warnings and instructions before use. Use the correct fluids,
pressures, and adapters specific to your machine. ALWAYS secure and park the machinery properly before beginning
any work.
• Before servicing your machinery, turn off the engine and secure it using chocks, jacks, or stands as outlined in the
manufacturer’s service manual. This will prevent accidental movement and potential injury.
• In case of emergencies, ensure a first aid kit and a communication device (e.g., phone) are readily available. Know the
location of nearby emergency medical facilities.
• For optimal performance, keep the kit clean and dry. Remove any fluid, oil, or grease before and after use. Regular
maintenance is essential to ensure safe operation.
• Dress appropriately for automotive servicing. DO NOT wear loose clothing, jewelry, or accessories that could get
caught in moving parts. Keep hair, clothing, gloves, hoses, and tools away from machinery in motion.
• Regularly inspect this product for misalignment, binding, wear, or damage before use. If any issues are found, repair or
replace the damaged parts before further use. In a large shop, mark damaged tools with "DO NOT USE" signs until
repaired. ON LY replace components with identical, authorized parts.
• Machinery repair can be inherently dangerous. This manual and the machinery service manual cannot cover every
possible situation. ALWAYS use caution, exercise good judgment, and seek training if needed.
2
Specifications
Rear Axle Bearing Puller Tool Set
Case Dimensions 10.1 × 4.7 × 2.6 in. 25.6 × 11.8 × 6.7 cm
Net Weight 3.3 lb 1.5 kg
Bearing Race & Seal Driver Set
Case Dimensions 10.24 × 5.91 × 3.58 in. 26 × 15 × 9.1 cm
Net Weight 3.5 lb 1.6 kg
Parts List
Pullers
Driver Discs Driver
1 ⅜″ to 2 ⅞″ 1 ⁵⁄₁₆″ to 2 ⅜″ 1¼″ to 1 ⅞″
1.55 in.
(39.5 mm)
2.56 in.
(65 mm)
2.83 in.
(72 mm)
3 in.
(76 mm)
3.19 in.
(81 mm)
1.75 in.
(44.5 mm)
1.97 in.
(50 mm)
2.32 in.
(59 mm)
2.48 in.
(63 mm)
3
Operation
• Shut the engine before servicing. Ensure the vehicle is stationary and the engine has
cooled to room temperature before performing maintenance or adjustments.
• Use the correct tools and personal protective equipment (PPE) before operating. Be
EXTREMELY careful around possible pinching points, moving parts, or parts that may
suddenly spring out.
• Make sure your surroundings are safe when using the tool. Avoid operating in crowded
or unstable areas.
• Make sure the work area is clean and clear of any clutter or dirt that may affect operations.
• ALWAYS ensure that your vehicle has been jacked up and is adequately supported
with axle stands.
• DO NOT force the tool. Excessive force may cause serious personal injuries and severe
property damage.
• For added safety, we recommend training before using these tools. A lack of training
could result in serious injury.
Removing the Bearing
Note: Select the proper puller for your bearing’s size referring to your vehicle’s manual.
1
Loosen
the nut
2
Slide Hammer
(not included)
Install
4
3 4
Insert
Bearing
Bearing
Wheel Hub
Tighten
the nut
5
Slide
Bearing
5
Installing the Bearing Race or Seal
Note: Select the proper driver disc for your race or seal.
Tapered Side
Flat Side
1
Remove
Seal
Race
6
• Race Installation
2
Wheel Hub
Reassemble
Race
Rubber Mallet
(not included)
Press
7
• Seal Installation
Wheel Hub
Reassemble
Seal
Bearing
Press
8
Maintenance
• BEFORE EACH USE, inspect the general condition of the tool kit.
• Check for misalignment or binding of moving parts, cracked or broken parts, and any other
condition that may affect its safe operation.
• If abnormal noise or vibration occur, address the issue before further use.
• AFTER USE, wipe clean with a damp cloth, using a mild detergent or mild solvent.
• Store these tools in their carrying case in a dry location.
User Manual
Rev. 10 Jun. 2025
