The Timken Company
The Timken Company
4500 Mt Pleasant St. NW
N. Canton, OH 44720
Phone: (234) 262-3000
E-Mail: CustomerCAD@timken.com • Web site: www.timken.com
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  • Each assembly includes the housing cap and base, cap bolts, bearing, bearing adapter, locknut and lockwasher, stabilizing ring and triple ring seals.
  • If only the pillow block is desired, use the numbers listed in column "Housing Only" column. These units include: cap, base, cap bolts, triple ring seals and stabilizing ring.
  • Assembly and pillow blocks as 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 23024).
  • Please note that for applications SAF23048 and larger, the shaft size must be included in the part description when ordering (e.g., SAF23048-8 15/16).

When ordering non-standard pillow block assemblies specify the shaft size.
timken-SAF-pillow-block-mounted-spherical-roller-bearing-unit-4-bolt-with-4-cap-bolts
Inch Tapered Bore Mounting Pillow Block SAF230K and SDAF230K Series
Unit of Measure
Items timken-SAF-pillow-block-mounted-spherical-roller-bearing-unit-4-bolt-with-4-cap-bolts
SAF 23024K 4-1/16
Inch Tapered Bore Mounting Pillow Block SAF230K and SDAF230K Series 		timken-SAF-pillow-block-mounted-spherical-roller-bearing-unit-4-bolt-with-4-cap-bolts
SAF 23024K 4-1/8
Inch Tapered Bore Mounting Pillow Block SAF230K and SDAF230K Series 		timken-SAF-pillow-block-mounted-spherical-roller-bearing-unit-4-bolt-with-4-cap-bolts
SAF 23024K
Inch Tapered Bore Mounting Pillow Block SAF230K and SDAF230K Series 		timken-SAF-pillow-block-mounted-spherical-roller-bearing-unit-4-bolt-with-4-cap-bolts
SAF 23024K 4-1/4
Inch Tapered Bore Mounting Pillow Block SAF230K and SDAF230K Series 		timken-SAF-pillow-block-mounted-spherical-roller-bearing-unit-4-bolt-with-4-cap-bolts
SAF 23026K 4-5/16
Inch Tapered Bore Mounting Pillow Block SAF230K and SDAF230K Series
Bearing Number N/A 23024K N/A 23024K N/A 23024K N/A 23024K N/A 23026K
Diameter S-1 N/A 4.0625 in N/A 4.1250 in N/A 4 3/16 in N/A 4 1/4 in N/A 4.3125 in
A N/A 4.5 in N/A 4.5 in N/A 4.5 in N/A 4-15/16 in N/A 4-15/16 in
B N/A 15-1/4 in N/A 15-1/4 in N/A 15-1/4 in N/A 16.5 in N/A 16.5 in
C N/A 4.375 in N/A 4.375 in N/A 4.375 in N/A 4.75 in N/A 4.75 in
D N/A 1.75 in N/A 1.75 in N/A 1.75 in N/A 2 in N/A 2 in
E Max. N/A 13.125 in N/A 13.125 in N/A 13.125 in N/A 14.5 in N/A 14.5 in
E Min. N/A 11.625 in N/A 11.625 in N/A 11.625 in N/A 12.625 in N/A 12.625 in
F N/A 2-3/8 in N/A 2-3/8 in N/A 2-3/8 in N/A 2.75 in N/A 2.75 in
H N/A 8-11/16 in N/A 8-11/16 in N/A 8-11/16 in N/A 9.5625 in N/A 9.5625 in
L N/A 6.0000 in N/A 6.0000 in N/A 6.0000 in N/A 6.3750 in N/A 6.3750 in
Bolt Hole Length N/A 1.5 in N/A 1.5 in N/A 1.5 in N/A 1.6875 in N/A 1.6875 in
Bolt Hole Width N/A 0.75 in
No. of Base Bolts Required N/A 4
Adapter Assembly Number1 N/A SNW-3024 x 4-1/16 N/A SNW-3024 x 4-1/8 N/A SNW-3024 x 4-3/16 N/A SNW-3024 x 4-1/4 N/A SNW-3026 x 4-5/16
Housing Only2 N/A SAF024K x 4-1/16 N/A SAF024K x 4-1/8 N/A SAF024K N/A SAF024K x 4-1/4 N/A SAF026K x 4-5/16
Stabilizing Ring 1 Req'd3 N/A SR-20-17 N/A SR-20-17 N/A SR-20-17 N/A SR-20-17 N/A SR-22-19
Triple Seal Req'd N/A LOR 111 N/A LOR 112 N/A LOR 113 N/A LOR 114 N/A LOR 115
Seal Type N/A Triple Ring Seal
Assembly Weight N/A 60 lb N/A 60 lb N/A 60 lb N/A 60 lb N/A 76.00 lb
Full Timken Part Number N/A SAF23024K4-1/16 N/A SAF23024K4-1/8 N/A SAF23024K N/A SAF23024K4-1/4 N/A SAF23026K4-5/16
C0 - Static Radial Rating N/A 129000 lbf574000 N N/A 129000 lbf574000 N N/A 129000 lbf574000 N N/A 129000 lbf574000 N N/A 162000 lbf723000 N
C1(2) - Dynamic Radial Rating (Two-Rows) N/A 91700 lbf408000 N N/A 91700 lbf408000 N N/A 91700 lbf408000 N N/A 91700 lbf408000 N N/A 116000 lbf518000 N
e - ISO Factor4 N/A 0.22 N/A 0.22 N/A 0.22 N/A 0.22 N/A 0.23
Y0 - ISO Factor5 N/A 2.95 N/A 2.95 N/A 2.95 N/A 2.95 N/A 2.87
Y1 - ISO Factor6 N/A 3.02 N/A 3.02 N/A 3.02 N/A 3.02 N/A 2.94
Y2 - ISO Factor7 N/A 4.49 N/A 4.49 N/A 4.49 N/A 4.49 N/A 4.37
Reference Thermal Speed Rating (Grease) N/A 2700 rpm N/A 2700 rpm N/A 2700 rpm N/A 2700 rpm N/A 2500 rpm
Reference Thermal Speed Rating (Oil)8 N/A 3300 rpm N/A 3300 rpm N/A 3300 rpm N/A 3300 rpm N/A 3100 rpm
Cg - Geometry Factor9 N/A 0.0735 N/A 0.0735 N/A 0.0735 N/A 0.0735 N/A 0.078
  • 1 Includes sleeve, locknut and lockwasher. Add shaft size to order.
  • 2 "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.
  • 3 Stabilizing ring is used for fixed (FX) block; do not use for float (FL) mounting.
  • 4 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 5 These factors apply for both inch and metric calculations. See engineering
  • 6 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 7 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 8 See thermal speed ratings in the engineering section.
  • 9 Geometry constant for Lubrication Life Adjustment Factor a3l.