Discover the NTN-SNR Self-Aligning Bearing Unit Range
EUROPEAN SERIES SNR - European Range (grey cast)
EUROPEAN SERIES SNR - European Range
ASIAN SERIES SNR Asian Range
ASIAN SERIES SNR Asian Range
ASIAN SERIES SNR Stainless steel Asian Range
ASIAN SERIES SNR Thermoplastic Range
SNR housing materials Grey cast iron with anti-corrosion surface treatment Advantage: - Good mechanical resistance, price, Application: - In total: 33 different housing designs (pillow block units, flange units, take-up units, hanger units) All application without special requirements Thermoplastic housings Advantage: Corrosion resistance, weight Application: Food -, pharmaceutical and chemical industry Stainless steel housings Advantage: Corrosion resistance, mechanical resistance Application: Food -, pharmaceutical and chemical industry Metal sheet housings Advantage: Small, light, price, corrosion protect by zinc-plating Application: Ventilators, agriculture,... 8
The Inserts Topics: - Various Fixing methods - Metric & inch bores - Tightness systems - Materials - Rotation speed
Inserts main types (S)UC (SNR) the most Common US (SNR) Shorter on one side UK (SNR) (K)conical tapered EX (SNR) EXcentric (S)ES (SNR) Excentric Short on one side CS (SNR)
Different shaft mounting methods Set screws Eccentric locking collar Adapter sleeve Fit Floating bearing
Different seal types Used for UC/EX/UK Used for US/ES Used for UC/EX/UK Used for High Temperature UC/EX201G2L4 Sizes: 201-210
Self-aligning units Specialties : - Seal L3 - Seal L4 - Inserts light conical LK - Protective caps - Inserts with square/hexagonal bore - Rubber ring - Inserts with cylindrical outer diameter 13
Self-aligning units Insert/ with 3 lips seal : L3 Avantages - Seal for difficult environment (agriculture) - Anti corrosion protection Inconvenient Rotation speed: limit at 30% for the standard speed 14
Self-aligning units Specialties : - Seal L3 - Seal L4 - Inserts light conical LK - Protective caps - Inserts with square/hexagonal bore - Rubber ring - Inserts with cylindrical outer diameter 15
Self-aligning units Insert/ labyrinth seal : L4 Advantages Code d article Taille Traitement surface/ BI/BE/support jt Bague excentrique Vis de fixation - Seal for very polluted environment (agriculture) - Speed : not limited as for L3 version - Anti corrosion protection on all elements Graisse Température Utilisable comme palier libre Classe de jeu Système d étanchéité/ Matière 16
Self-aligning units Specialties : - Seal L3 - Seal L4 - Inserts light conical LK - Protective caps - Inserts with square/hexagonal bore - Rubber ring - Inserts with cylindrical outer diameter 17
Self aligning units Inserts, type LK UK standard conical LK UC What it is used for? 18
Self aligning units Technical caracteristics of the LK Rotation in both sense High rotation speed No shaft damaging God radial centering No shaft Ø reduction Also for size 204 Mounting only with special tools Torque force to respect Lower load capacity as standard UK version 19
Dimensions Principal dimensions [mm] 20
Self-aligning units Specialties : - Seal L3 - Seal L4 - Inserts light conical LK - Protective caps - Inserts with square/hexagonal bore - Rubber ring - Inserts with cylindrical outer diameter 21
Protective Caps SNR for Self-aligning units
Protective Caps SNR SCC / SCO SCCE / SCOE PCC / PCO Standard size: - All inserts, exception: excentric fixing ring Large size: - Excentric fixing ring Special housings without cap groove
SNR Offer End caps for steel housings (grey cast and stainless steel) Properties Open (SCO200) and closed (SCC200) caps Suitable for grey cast and stainless steel housings Sizes: 201 213 (12-65 mm) Material: stainless steel Open caps equipped with two lip-seal from silicon rubber (200 C) With advantages like Protection of the bearing against outside influences Safety at work Discharge of lubricant 2 lip seal
Special version for housings without N groove possibility: => Groove in the outer ring of the insert => 2 hooks on the cap => Cap clipping
PILLOW BLOCKS FLANGE HOUSINGS (Units with 2 caps) (Units with 1 cap) SNR Caps Caps information and designations Caps... + + + Will be delivered automatically with the unit, but they won t be packed in the same packaging. UC P206N SCC206 SCO206-30 = US P206N SCC206 SCO206-30 = UK P206N SCC206 SCO206-25 = + + + UCP206CC USP206CC UKP206CC Will be available in single and industry packaging Should never be sold individually Are available for sizes 201-213 Are from stainless steel AISI 304 UC US UK P206N P206N P206N SCO206-30 SCO206-30 SCO206-25 SCO206-30 SCO206-30 SCO206-25 This number indicates the shaft-diameter. = = = UCP206CO USP206CO UKP206CO With bore are equipped with 2-lips seals from silicone rubber Are applicable for grey cast and stainless steel housings. UC US UK + F206N F206N F206N + SCC206 SCC206 SCC206 = UCF206CC = USF206CC = UKF206CC Please note that the following housings cannot be equipped with a standard cap due to their design! FCE / FEE / FTE / FLZ / FD / FAE + + UC US UK F206N F206N F206N SCO206-30 SCO206-30 SCO206-25 = UCF206CO = USF206CO = UKF206CO
Attention: SCO206-25 UC US UK ES EX SCC SCO, SCOU ES US SCCE SCOE, SCOEU PCE PCO Attention : suffix for insert: G1N (groove in outer ring)
Thermo plastic Units Thermoplastique series (16+8)/16 inches ) Unit marking : GSF 40 (24) Insert marking : MUC 208-24 FD 28
SNR Offer End caps for thermoplastic housings Thermoplastic
Self-aligning units Specialties : - Seal L3 - Seal L4 - Inserts light conical LK - Protective caps - Inserts with square/hexagonal bore - Rubber ring - Inserts with cylindrical outer diameter 30
Inserts for agriculture 1 AS08-1 1/8 Type Bore geometry S = square C = cylindrical H = hexagonal Diamètre d arbre en pouce
Self-aligning units Specialties : - Seal L3 - Seal L4 - Inserts light conical LK - Protective caps - Inserts with square/hexagonal bore - Rubber ring - Inserts with cylindrical outer diameter 32
Paliers auto-aligneurs Les inserts type ESR Solid rubber ring to reduce noise and vibration Rubber Hardness: 70 SHORE +/- 5 / Material: NBR Filled with a long life grease/ non regreasing Reduces friction torque thanks to optimized seal lips Noise tested Operating Temperature: -20 C to +85 C Inner, outer and eccentric ring galvanized steel 33
34 Dimensions
Self-aligning units Specialties : - Seal L3 - Seal L4 - Inserts light conical LK - Protective caps - Inserts with square/hexagonal bore - Rubber ring - Inserts with cylindrical outer diameter 35
Inserts with cylindrical outer diameter - All inserts are in metric and inch sizes
Technical information Rotation speed Misalignment Surface protection
Rotation speed The maximal rotations speed depends on 2 factors: - The shaft tolerance (see diagram below) - The seal type. 3 lips seals will reduce the speed to 30% of the maximum
Insert inclination angle The inclination angle depends on 2 factors: - Body types: Units with regreasing: α = ± 2 Units without regreasing: α = ± 5 - Protection cap: limit the inclination to α = ± 1 Surface treatment / anti-corrosion - The cast iron housing are treated with a primer before painting! - Pressed steel housings are zinc-plated 39
How to order: Complete units (housing with insert) Inserts only Housings only
Whole units (housing + insert) (without thermoplastic housings) Housing: P = pillow block PA = pillow block + 2 holes PAE = pillow block + 2 holes (European version)... Suffix: - T04 = - 40 C - T20 = + 200 C - CC = closed protective cap - CO = open protective cap - L3 = triple seal - M = metric tapped bore S UK P 2 05 H T20 CC Prefix: S = stainless steel Insert: (always 2 digits) UC = universal common US = universal short EX = eccentric ES = eccentric short UK = Universal conical... Ø series: - 04 = 20 mm - 05 = 25 mm... Section series: - 200-300 (for heavy duty appl. Sleeve: - Conical sleeve only when insert conical
Insert: (always 2 digits) UC = universal common US = universal short EX = eccentric ES = eccentric short UK = Universal conical CS = Cylindrical bore LK = Light conical... Inserts (without thermoplastic series) Bore Ø in Inch: 14 = 14/16 inch 35 = 2 3/16 inch... Suffix: - T04 = - 40 C - T20 = + 200 C - L3 = triple seal - G2 = Regreasing holes C UK 2 05 +H -14 T20 Prefix: S = stainless steel C = Cylindrical outer ring Section series: - 200-300 Ø series: - 04 = 20 mm - 05 = 25 mm... Sleeve: - Conical sleeve included (only when insert conical) Attention: not all combinations are possible!
Housing (without thermoplastic housings) Housing: P = pillow block PA = pillow block + 2 holes PAE = pillow block + 2 holes (European version)... Suffix: - N = groove for protective cap - D = Cylindrical bore (FD version) - G = metric tapped bore (FD version) S P 2 05 N Prefix: S = stainless steel Section series: - 200-300 Ø series: - 04 = 20 mm - 05 = 25 mm...
Caps (without thermoplastic housings) Prefix: - = European version U = US version (inch) Suffix: - 20 = 20mm - 16 = 16/16 inch with prefix U S C O E U 2 05-16 Prefix: S = stainless steel P = Protective Prefix: C = Cap Prefix: - = Standard E = for eccentric collar Ø series: - 04 = 20 mm - 05 = 25 mm... Prefix: C = Closed O = Open
Thermoplastic series (16+8)/16 inch ) P/N for hole units: GSF 40 (24) P/N for inserts: MUC 208-24 FD
Sales arguments : Wide product range: -Grey cast -Stainless Steel -Pressed steel -Thermoplastic units => In total more than 25.000 different references. Customer benefits: Interchangeability to the main competitors Different dimension series: Series 200 (for normal loads) and 300 (for heavy loads) 40 years application experience in the field of Bearing Units
End section PAA SNR 4