Standard Locknut Miether


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SAF224 SAF200 Series

SAF224 - SAF200 Series, Split Pillow Blocks, Mounted Bearings, Products

SAF224

SAF224X505X409-1 Standard Locknut Part Number

Durable cast-iron housings for spherical roller bearings in general industrial applications.  The split-housing design simplifies assembly and service.  Standard base-to-shaft center, bolt hole slots, and envelope dimensions match industry standards for 222 series spherical roller bearings.  Tapered bore mount design speeds installation time.

Features and benefits

  • Assembly includes pillow block, SR stabilizing ring, and LER labyrinth seals.
  • Lubrication access points and pry slots on cap facilitate easy installation and maintenance.
  • Stress optimized design for very high application durability.
  • Standard Locknut, setting the industry standard.
  • Excellence Made Standard.
  • Proudly made in the USA for over 70 years.


  • Available in shaft sizes from 1 3/8” though 10”, with special versions available up to 40” shaft size.
  • SAF210 through SAF220 sizes have two bolt holes standard.SAF222 and above have four bolt holes.For sizes SAF215 through SAF220, four-bolt versions contain a prefix “F”.
  • Grade 8 bolts fasten cap to base.
  • Triple ring seals (LER series), and stabilizing ring (SR series) for fixed mounting, are included with pillow block.End caps sold separately.
  • Oil return holes machined in the block protect the bearing from contamination.
  • Multiple lubrication ports allow for either grease or oil lubrication.
  • Machined G7 housing fit as a standard.
  • Matched doweled base and cap sets facilitate exact alignment during installation.
  • Cast from ASTM grade A48 Class 30 cast iron.Steel and Ductile iron versions available.
Dimensions
S-2 5 5⁄16 INCH Shaft Diameter
S-3 4 9⁄16 INCH Shaft Diameter
A 5 1⁄4 INCH A
B 16 1⁄2 INCH B
C 4 3⁄4 INCH C
D 2 1⁄8 INCH D
EMAX 14 1⁄2 INCH E Max.
EMIN 13 1⁄4 INCH E Min.
F 2 3⁄4 INCH F
H 10 1⁄4 INCH H
K 1 15⁄16 INCH K
L 7 3⁄8 INCH L
Y 2 3⁄32 INCH Y
BBRN 4 Base Bolts Required No.
WEIGHT 90 LB Assembly Weight
Included products
Housing Only SAF224
Stabilizing Ring SR24-20
Triple Seal 1 Req. S-2 LER127
Triple Seal 1 Req. S-3 LER119
Optional products (Sold separately, complete unit available upon request)
Bearing No. 22224
Locknut AN24
Lockwasher W24