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Case studies
Y-bearing plummer block units with a cast iron housing

Y-bearing plummer block units with a cast iron housing

Housing standard	Locking method	Bore diameter		Bearing series	Housing series	Unit series
		Metric	Inch

ISO	Eccentric locking grub screws	✔	✔	YAR 2.. 2F standard seals with additional flingers (fig. 1) standard grease (VT307)	SY .. M	SY .. TF
		✔	✔	YAR 2.. 2RF multiple seals (fig. 3) standard grease (VT307)		SY .. TR
		✔	✔	YARAG 2 5-lip seals (fig. 4) standard grease (VT307)		SY .. TDW
	Eccentric locking collar	✔	–	YET 2 standard seals (fig. 5) standard grease (VT307)		SY .. FM
		✔	–	YEL 2.. 2F standard seals with additional flingers (fig. 1) standard grease (VT307)		SY .. WF
		✔	✔	YELAG 2 5-lip seals (fig. 4) standard grease (VT307)		SY .. WDW
ISO¹⁾	Eccentric locking grub screws	–	✔	YAR 2.. 2F(/AH) standard seals with additional flingers (fig. 1) standard grease (VT307)	SY .. U²⁾	SY .. TF(/AH)
		–	✔	YAR 2.. 2F standard seals with additional flingers (fig. 1) standard grease (VT307)	SY .. U²⁾	SYM .. TF
		–	✔		SYH .. U²⁾	SYH .. TF
		✔	✔	YAR 2..2FW/VA201 Insert bearings for high temperature applications	SY .. U/VA228²⁾	SY .. TF/VA201
		✔	✔	YAR 2..2FW/VA228 Insert bearings for high temperature applications	SY .. U/VA228²⁾	SY .. TF/VA228
	Eccentric locking collar	–	✔	YET 2 standard seals (fig. 5) standard grease (VT307)	SY .. U²⁾	SY .. FM
		–	✔	YEL 2.. 2F standard seals with additional flingers (fig. 1) standard grease (VT307)	SY .. U²⁾	SY .. WF
		–	✔	YET 2 standard seals (fig. 5) standard grease (VT307)	SYH .. U²⁾	SYH .. FM
		–	✔	YEL 2.. 2F standard seals with additional flingers (fig. 1) standard grease (VT307)	SYH .. U²⁾	SYH .. WF
JIS	Eccentric locking grub screws	✔	✔	YAR 2.. 2F standard seals with additional flingers (fig. 1) standard grease (VT307)	SYJ	SYJ .. TF
Not standardized		–	✔		SYM .. U²⁾	SYM .. TF
		✔	–		SYF	SYF .. TF
		✔	–		SYFJ	SYFJ .. TF
	Eccentric locking collar	✔	–	YET 2 standard seals (fig. 5) standard grease (VT307)	SYF	SYF .. FM
ISO	Concentric locking SKF ConCentra	✔	–	YSP 2.. 2F standard seals with additional flingers (fig. 1) standard grease (VT307)	SY .. M	SY .. LF
ISO		✔	✔	YSPAG 2 5-lip seals (fig. 4) standard grease (VT307)	SY .. M	SY .. LDW
ISO¹⁾		–	✔	YSP 2.. 2F/AH standard seals with additional flingers (fig. 1) standard grease (VT307)	SY .. U²⁾	SY .. LF/AH
JIS	Concentric locking adapter sleeve	✔	–	YSA 2.. 2FK standard seals with additional flingers (fig. 1) standard grease (VT307)	SYJ	SYJ .. KF³⁾

1) For exceptions, refer to Ball bearing unit data.
2) Housings not available as separate products.
3) Adapter sleeves must be ordered separately.

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