Product Differentiation

USER FRIENDLY COMPARISON FOR BETTER SELECTION OF

SN · SNA · SNH · SNL Series

Features & Specifications | Split housings for Spherical Roller & Self-Aligning Ball Bearings

Each series upgrades the one before it, from SN to SNL.

PARAMETERS FOR REVIEW Each series upgrades the one before it, from SN to SNL.	SN SERIES Economy pick Simple construction	SNA SERIES Reliable & economical Improved, with added features	SNH SERIES Rigid, higher load Upgraded, better features	SNL SERIES Ultimate choice Fully upgraded, many extras
01 Suitable bearing type	Spherical Roller Bearing and Double Row Self Aligning Ball bearing	Spherical Roller Bearing and Double Row Self Aligning Ball bearing	Spherical Roller Bearing and Double Row Self Aligning Ball bearing	Spherical Roller Bearing, CARB Bearing and Double Row Self Aligning Ballbearing
02 Grease lubrication	Yes	Yes	Yes	Yes
03 Oil lubrication	No	No	Yes	Yes
04 Seal options	Felt seal only	4 types: TA / TC / TS / TL	5 types: TA / TC / TS / TL / TER	5 types: TA / TC / TS / TL / TER
05 Taconite seal	No	No	Yes	Yes
06 Drain plug	No	Yes	Yes	Yes
07 Grease Cavity Sump at side for some additional grease	No	No	Yes	Yes
08 Grease nipple	1	1	1, provision for 1 additional nipples	1, provision for 2 additional nipples
09 Interchangeable per international standard	ISO 113 (2010)	ISO 113 (2010)	ISO 113 (2010)	ISO 113 (2010)
10 Continuous oil lubrication	No	No	Can arrange	Can arrange
11 Price positioning	Low	Average	Medium	Little high

Available Not available

Masta Bearing Housing · Technical difference between SN / SNA / SNH / SNL

CONSTRUCTION FEATURES & ADVANTAGE TO USER	SN SERIES	SNA SERIES	SNH SERIES	SNL SERIES
Base view and bottom rib
Overall design	Simple construction	Little improved with few additional features	Upgraded to previous series and better features added	Much more upgraded for better service and applicability with many additional features.
Housing base	One rib at bottom centre	One broader rib in centre of bottom cavity	Three ribs are provided in bottom cavity and additional one cross rib at center	Three ribs are provided in bottom cavity and additional one cross rib at center
Cap top rib arrangement	One rib for greasing at bearing centre	One rib for greasing at bearing centre	One rib for greasing at bearing centre and Dimples provided to fit extra nipple	1. One pad at center for greasing bearing 2. Two Ribs at sides for adding grease and put sensors for Vibration and Temperature measurement
Foundation mounting	Two elliptical holes	Two elliptical holes (4 holes possible)	Two elliptical holes (4 holes possible)	Two elliptical holes; (possible to provide 4 foundation holes & Also provision for 4 drilled holes.) (thru suitable dimples at base) Note: Such provision in foundation increase rigidity in assembly
Application load capacity	LOWER Moderate speed. Not for high-temperature use	LOWER Moderate speed	MEDIUM Medium speed, some shock load and vibration	HIGHER Higher speed, with shock, vibration and temperature
Service / application	SN is considered for lower load application at economic rate	SNA is considered better choice for moderate application at economic rate yet better reliability due to Choice of seal	SNH is selected for higher load with variation and temperature. Its rigid construction justifies its rate.	SNL is ultimate choice with strong structure, rigid base, allowing variation in load conditions, service friendly options. Its little higher price justifies against trouble free operation to user.
Preferred for Industries	Normal drive systems Low-speed fans Intermittent drives Indoor use	Industrial fans, moderate service Intermediate conveyors Outdoor services	Industrial fans, heavier service Cement & coal mining conveyors Outdoor services	Heavy fans Mining & field conveyors Construction & cement Iron ore mining Paper & rolling mills

SN · SNA · SNH · SNL Series

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