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  • Each assembly includes the housing cap and base, cap bolts, bearing, locknut and washer, stabilizing ring and triple ring seals.
  • To order pillow block housing only, use the numbers listed in the "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., SDAFS 23152).
  • For fixed applications, both stabilizing rings must be used. Do not use stabilizing rings for “Float” mounting.
Unit of Measure

Specifications

Bearing Number

N/A 23152

Diameter S-2

N/A 11 1/2 in

Diameter S-3

N/A 9 15/16 in

A

N/A 10.25 in

B

N/A 35 in

C

N/A 13.125 in

D

N/A 3.75 in

E Max.

N/A 30.5 in

E Min.

N/A 29 in

F

N/A 8.75 in
H1 N/A 20.875 in

Oil Level K

N/A 3.375 in
L2 N/A 14.25 in

No. of Base Bolts Required

N/A 4

Size of Base Bolts Required

N/A 1 5/8

Bolt Hole Length

N/A 2.375 in

Bolt Hole Width

N/A 1.625 in

Locknut

N/A NO52

Lockplate

N/A P52
Housing Only3 N/A SDAF3152
Stabilizing Ring 1 Req'd4 N/A A5679

Triple Seal 2 Req’d at S-2

N/A ER832-1

Triple Seal 2 Req’d at S-3

N/A ER751-1

Full Timken Part Number

N/A SDAF23152

Basic Load Ratings

C0 - Static Radial Rating

N/A 885000 lbf3930000 N

C1(2) - Dynamic Radial Rating (Two-Rows)

N/A 603000 lbf2680000 N

Factors

e - ISO Factor5 N/A 0.3
Y0 - ISO Factor6 N/A 2.18
Y1 - ISO Factor7 N/A 2.23
Y2 - ISO Factor8 N/A 3.31

Reference Thermal Speed Rating (Grease)

N/A 830 rpm
Reference Thermal Speed Rating (Oil)9 N/A 930 rpm
Cg - Geometry Factor10 N/A 0.1162
  • 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.
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