SPHERICAL ROLLER BEARING UNITS
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SPHERICAL ROLLER BEARING UNITS

Introducing FYH Spherical Roller Bearing Units More than sixty-five years of experience and innovation in the field of mounted ball bearing units has lead to the development of mounted spherical roller units that cater to a wide range ofapplications and industries. Bearing and housing production are accomplished entirely by FYH while utilizing only the highest quality materials available. Through meticulous design enhancements and careful material selection this heavy duty mounted roller series attains the designation of "EXTRA TOUGH". EXTRA TOUGH Triple Lip Seal ±2°SelfAligning capability...

COMPARISON OF FYH SN UNITS AND SN PLUMMER BLOCK UNITS The nomenclature of a FYH Spherical Roller Unit is comprised of the roller bearing unit model code which is made up using the bearing model code and the housing model code. This in combination with the diameter series code, bore diameter code, accessory code and any special FYH code for individual applications determines the FYH Spherical Roller Units part number. FYH Spherical Roller Bearing Units Contamination is the single biggest problem that bearings face in applications such as aggregate, mining, forestry, pulp and paperand steel...

Models and Features SPHERICAL ROLLER BEARING UNITS 2 - Bolt Base Type SN Pillow Block Units 4 - Bolt Base Pillow Block Units ZS2SN is patented Z LOCK spherical roller bearing unit with SN style housing for the replacement of SN plummer blocks. ZS4P is a four-bolt base pillow block unit with standard spherical roller bearing mounting dimensions. Four mounting bolt-holes create a firm and secure fit to the mounting surface. The ends of the housing are flat to allow for mounting inside of a fixed frame assembly. XS2SN has the same housing dimensions as the above styles but utilizes the...

2 - Bolt Base Type SN Pillow Block Units FYH ZS2SN Cylindrical bore (with Z Lock) d 40 ~ 100 mm XS2SN Cylindrical bore (with set screw collar lock) d 40 ~ 100 mm Interchange to SN Plummer Block Units

2 - Bolt Base Type SN Pillow Block Units FYH ZDS2SN Cylindrical bore (with Z Lock (both)) d 60 ~ 100 mm XDS2SN Cylindrical bore (with set screw collar lock (both)) d 60 ~ 100 mm Interchange to SN Plummer Block Units

2 - Bolt Base Pillow Block Units FYH ZS2P Cylindrical bore (with Z Lock) d 1 3/8 ~ 4 inch 40 ~ 100 mm XS2P Cylindrical bore (with set screw collar lock) d 1 3/8 ~ 4 inch 40 ~ 100 mm

2 - Bolt Base Type E Pillow Block Units FYH ZSE2P Cylindrical bore (with Z Lock) d 1 3/8 ~ 4 inch 40 ~ 100 mm XSE2P Cylindrical bore (with set screw collar lock) d 1 3/8 ~ 4 inch 40 ~ 100 mm

4 - Bolt Flange Units FYH ZS4F Cylindrical bore (with Z Lock) d 1 3/8 ~ 4 inch 40 ~ 100 mm XS4F Cylindrical bore (with set screw collar lock) d 1 3/8 ~ 4 inch 40 ~ 100 mm

4 - Bolt Type E Flange Units FYH ZSE4F Cylindrical bore (with Z Lock) d 1 3/8 ~ 4 inch XSE4F Cylindrical bore (with set screw collar lock) d 1 3/8 ~ 4 inch 40 ~ 100 mm

Flange Cartridge Units FYH ZS4FC Cylindrical bore (with Z Lock) d 1 3/8 ~ 4 inch 40 ~ 100 mm XS4FC Cylindrical bore (with set screw collar lock) d 1 3/8 ~ 4 inch 40 ~ 100 mm

FYH ZST Cylindrical bore (with Z Lock) d 1 15/16 ~ 3 V2 inch 50 ~ 90 mm XST Cylindrical bore (with set screw collar lock) d 1 15/16 ~ 3 1/2 inch 50 ~ 90 mm

4 - Bolt Base Pillow Block Units FYH ZS4P Cylindrical bore (with Z Lock) d 2 7/16 ~ 4 inch 60 ~ 100 mm XS4P Cylindrical bore (with set screw collar lock) d 2 7/16 ~ 4 inch 60 ~ 100 mm

4 - Bolt Base Pillow Block Units FYH ZDS4P Cylindrical bore (with Z Lock) d 2 7/16 ~ 4 inch 60 ~ 100 mm XDS4P Cylindrical bore (with set screw collar lock) d 2 7/16 ~ 4 inch 60 ~ 100 mm

Spherical Roller Bearing Inserts FYH ZS4 Cylindrical bore (with Z Lock) d 1 3/8 ~ 4 inch XS4 Cylindrical bore (with set screw collar lock) ZDS4 Cylindrical bore (with Z Lock (both)) d 2 7/16 ~ 4 inch 60 ~ 100 mm XDS4 Cylindrical bore (with set screw collar lock (both))

FYH PRECAUTIONS • Read the entire installation guide prior to beginning. • Bearings are precision instruments and they must always be handled carefully to prevent damage. • Store bearings in a cool and dry location, and always leave bearings in original packaging until ready for installation. • Bearing life calculations should be performed prior to installation to ensure that the selected unit is acceptable for the application. • The use of more than two bearings on a single shaft is not recommended. • To maximize the life of the bearing avoid mis-alignment and pre-loading by carefully...

FYH Spherical Roller Bearing Units Installation Guide Table 6 - Lubrication Schedule (recommended) Table 7 - Limiting Speed for Seals (min-1) LUBRICATION Proper lubrication practices will greatly extend the life of the bearing. Bearings are factory lubricated with the proper amount and type of lubricant for most general purpose applications as well as many highly demanding operating environments, and except as recommended by FYH, no further lubrication is required upon installation. Lubrication tips: • The factory standard lubricant is a calcium sulfonate grease. Always use the same type of...

Allowable Radial Load (kN) at Various RPM i. 2. Blue area: The Standard Triple Lip Seal is used. Green area: A non-contact seal is used. NIPPON PILLOW BLOCK CO., LTD. 2306 Hirao Miharaku Sakai Osaka 587-0022 JAPAN TEL: 072-361-3750 / FAX: 072-361-4173 E-mail: info@fyhbearings.com FYH BEARING UNITS USA INC. 13201 FYH Drive, Huntley Illinois 60142 USA TEL: 847-487-9111 / FAX: 847-487-9222 E-mail: sales@fyhusa.com

SPHERICAL ROLLER BEARING UNITS