Page 714 - SKF-bearing-housings

17.1 SKF inch roller bearing units with a two-bolt pillow (plummer) block housing
SYE, SYE .. N, SYR and SYR .. N series
d a 2 1 /2 – 3 11 /16 in.
1 /32
A 1

B B
s s
d 2 d a H d a H

H 1 H 1

A A

SYE SYE .. N SYR .. NH

Shaft Bearing unit Basic load Limiting speeds Mass Appropriate
diameter Designation 1) rating TriGard Labyrinth Radial shaft attachment
dynamic seal seal seal bolt size
C
d a
in. lbf. r/min lb. –

2 1 /2 SYE 2 1/2 33 300 3 100 3 250 1 100 18.5 5 /8
SYE 2 1/2 N 43 400 2 900 3 800 – 18.5 5 /8
SYR 2 1/2 33 300 3 100 3 250 1 100 16 5 /8
SYR 2 1/2 N 43 400 2 900 3 800 – 16 5 /8
2 11 /16 SYE 2 11/16 35 500 2 800 2 800 950 25.5 3 /4
SYE 2 11/16 N 47 700 2 600 3 400 – 25.5 3 /4
SYR 2 11/16 35 500 2 800 2 800 950 22 3 /4
SYR 2 11/16 N 47 700 2 600 3 400 – 22 3 /4
2 3 /4 SYE 2 3/4 35 500 2 800 2 800 950 25 3 /4
SYE 2 3/4 N 47 700 2 600 3 400 – 25 3 /4
SYR 2 3/4 35 500 2 800 2 800 950 22 3 /4
SYR 2 3/4 N 47 700 2 600 3 400 – 22 3 /4
2 15 /16 SYE 2 15/16 35 500 2 800 2 800 950 24 3 /4
SYE 2 15/16 N 47 700 2 600 3 400 – 24 3 /4
SYR 2 15/16 35 500 2 800 2 800 950 21 3 /4
SYR 2 15/16 N 47 700 2 600 3 400 – 21 3 /4
3 SYE 3 35 500 2 800 2 800 950 23.5 3 /4
SYE 3 N 47 700 2 600 3 400 – 23.5 3 /4
SYR 3 35 500 2 800 2 800 950 21 3 /4
SYR 3 N 47 700 2 600 3 400 – 21 3 /4
3 7 /16 SYE 3 7/16 56 900 2 300 2 200 800 35.5 7 /8
SYE 3 7/16 N 73 100 2 200 2 600 – 35.5 7 /8
SYR 3 7/16 56 900 2 300 2 200 800 31.5 7 /8
SYR 3 7/16 N 73 100 2 200 2 600 – 31.5 7 /8
3 1 /2 SYE 3 1/2 56 900 2 300 2 200 800 35.5 7 /8
SYE 3 1/2 N 73 100 2 200 2 600 – 35.5 7 /8
SYR 3 1/2 56 900 2 300 2 200 800 31.5 7 /8
SYR 3 1/2 N 73 100 2 200 2 600 – 31.5 7 /8
3 11 /16 SYR 3 11/16 69 900 2 100 2 000 700 44.5 1
SYR 3 11/16 N 95 700 2 000 2 200 – 44.5 1

1) The listed designation is for a non-locating unit with TriGard seals. Other variants must be specified by suffixes († page 693).

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