The Timken Company - Inch Straight Bore Mounting Pillow Block SAF222 and SAF223 Series

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Each assembly includes the housing cap and base, cap bolts, bearing, locknut and lockwasher, stabilizing ring and triple ring seals.
To order pillow block housing only, use the numbers listed in "Housing Only" column. These units include: cap, base, cap bolts, triple ring seals and stabilizing ring.
Assembly and pillow blocks described on this page constitute fixed units.
To order float units, specify part number plus suffix "Float" or "FL".
If one end closed assembly is required, specify “CL” in assembly number when ordering.
All assemblies shown are furnished in cast iron. If cast steel is desired, add the letter "S" to the alpha prefix (e.g., SAFS 22217).

Speed ratings are found in dimension tables in the spherical roller bearing section.

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Unit of Measure

Items	SAF 22217 Inch Straight Bore Mounting Pillow Block SAF222 and SAF223 Series	FSAF 22217 Inch Straight Bore Mounting Pillow Block SAF222 and SAF223 Series	SAF 22317 Inch Straight Bore Mounting Pillow Block SAF222 and SAF223 Series	FSAF 22317 Inch Straight Bore Mounting Pillow Block SAF222 and SAF223 Series	SAF 22218 Inch Straight Bore Mounting Pillow Block SAF222 and SAF223 Series
Bearing Number	N/A 22217	N/A 22217	N/A 22317	N/A 22317	N/A 22218
Diameter S-2	N/A 3 15/16 in	N/A 3 15/16 in	N/A 3 15/16 in	N/A 3 15/16 in	N/A 4 1/8 in
Diameter S-3	N/A 3 3/16 in	N/A 3 3/16 in	N/A 3 3/16 in	N/A 3 3/16 in	N/A 3.3750 in
A	N/A 3.75 in	N/A 3.75 in	N/A 4.5 in	N/A 4.5 in	N/A 4 in
B	N/A 13 in	N/A 13 in	N/A 15-1/4 in	N/A 15-1/4 in	N/A 13.75 in
C	N/A 3-1/2 in	N/A 3-1/2 in	N/A 4.375 in	N/A 4.375 in	N/A 3.875 in
D	N/A 1.25 in	N/A 1.25 in	N/A 1.75 in	N/A 1.75 in	N/A 1.5 in
E Max.	N/A 11 in	N/A 11 in	N/A 13.125 in	N/A 13.125 in	N/A 11.625 in
E Min.	N/A 9.875 in	N/A 9.875 in	N/A 11.625 in	N/A 11.625 in	N/A 10.375 in
F	N/A	N/A 2-1/8 in	N/A	N/A 2-3/8 in	N/A
H¹	N/A 7.25 in	N/A 7.25 in	N/A 8-11/16 in	N/A 8-11/16 in	N/A 7 3/4 in
Oil Level K	N/A 1.4375 in	N/A 1.4375 in	N/A 1.8125 in	N/A 1.8125 in	N/A 1.5313 in
L²	N/A 4.938 in	N/A 4.938 in	N/A 6.0000 in	N/A 6.0000 in	N/A 6.2500 in
Y	N/A 1.4219 in	N/A 1.4219 in	N/A 1.8906 in	N/A 1.8906 in	N/A 1.5781 in
No. of Base Bolts Required	N/A 2	N/A 4	N/A 2	N/A 4	N/A 2
Size of Base Bolts Required	N/A 3/4	N/A 5/8	N/A 7/8	N/A 3/4	N/A 3/4
Bolt Hole Length	N/A 1.3125 in	N/A 1.1875 in	N/A 1.625 in	N/A 1.5 in	N/A 1.375 in
Bolt Hole Width	N/A 0.75 in	N/A 0.625 in	N/A 0.875 in	N/A 0.75 in	N/A 0.75 in
Locknut	N/A AN17	N/A AN17	N/A AN17	N/A AN17	N/A AN18
Lockwasher	N/A W17	N/A W17	N/A W17	N/A W17	N/A W18
Housing Only³	N/A SAF217	N/A FSAF217	N/A SAF317	N/A FSAF317	N/A SAF218
Stabilizing Ring 1 Req'd⁴	N/A SR-17-14	N/A SR-17-14	N/A SR-20-17	N/A SR-20-17	N/A SR-18-15
Triple Seal 2 Req’d at S-2	N/A LOR89	N/A LOR89	N/A LOR109	N/A LOR109	N/A LOR96
Triple Seal 2 Req’d at S-3	N/A LOR63	N/A LOR63	N/A LOR188	N/A LOR188	N/A LOR72
Seal Type	N/A Triple Ring Seal
Assembly Weight	N/A 43 lb	N/A 43 lb	N/A 80 lb	N/A 80 lb	N/A 50 lb
Full Timken Part Number	N/A SAF22217	N/A FSAF22217	N/A SAF22317	N/A FSAF22317	N/A SAF22218
C0 - Static Radial Rating	N/A 71900 lbf320000 N	N/A 71900 lbf320000 N	N/A 131000 lbf584000 N	N/A 131000 lbf584000 N	N/A 87200 lbf388000 N
C1(2) - Dynamic Radial Rating (Two-Rows)	N/A 66900 lbf297000 N	N/A 66900 lbf297000 N	N/A 122000 lbf543000 N	N/A 122000 lbf543000 N	N/A 79700 lbf355000 N
e - ISO Factor⁵	N/A 0.22	N/A 0.22	N/A 0.32	N/A 0.32	N/A 0.23
Y0 - ISO Factor⁶	N/A 3	N/A 3	N/A 2.06	N/A 2.06	N/A 2.83
Y1 - ISO Factor⁷	N/A 3.07	N/A 3.07	N/A 2.11	N/A 2.11	N/A 2.9
Y2 - ISO Factor⁸	N/A 4.57	N/A 4.57	N/A 3.14	N/A 3.14	N/A 4.31
Reference Thermal Speed Rating (Grease)	N/A 3400 rpm	N/A 3400 rpm	N/A 3000 rpm	N/A 3000 rpm	N/A 3500 rpm
Reference Thermal Speed Rating (Oil)⁹	N/A 4200 rpm	N/A 4200 rpm	N/A 3500 rpm	N/A 3500 rpm	N/A 4300 rpm
Cg - Geometry Factor¹⁰	N/A 0.0595	N/A 0.0595	N/A 0.0662	N/A 0.0662	N/A 0.0638
¹ Tolerance -0 to + 0.4 mm (-0 to +1/64 in) ² Tolerance -0 to + 0.4 mm (-0 to +1/64 in) ³ "Housing Only" includes: cap, base, cap bolts, triple ring seals and stabilizing ring as required. When ordering non-standard housing only specify the shaft size. ⁴ Stabilizing ring is used for fixed (FX) block; do not use for float (FL) mounting. ⁵ These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use. ⁶ These factors apply for both inch and metric calculations. See engineering ⁷ These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use. ⁸ These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use. ⁹ See thermal speed ratings in the engineering section. ¹⁰ Geometry constant for Lubrication Life Adjustment Factor a3l.