ISUTAMI BEARINGS
SAF Series 4 Bolt Flange Mounted Bearing Units
E-catalog
ISUTAMI BEARINGS

SAF Series 4 Bolt Flange Mounted Bearing Units

SAF Series 4 Bolt Flange Mounted Bearing Units
ISUTAMI SAF 4-bolt mounted bearing unit, also known as SAF 4-bolt square flanged housing with bearing. The product is usually applied when the bearing mounting surface is perpendicular to the shaft. The flanged housing is a one-piece and the mainly made of cast iron. The cast iron is always painted, galvanized or nickel plated for corrosion protection. The housing has four bolt holes distributed near four corners to install the entire product. The inner ring of the bearing housing is spherical and combined with the insert spherical ball bearing of the corresponding size to form a complete bearing unit. This spherical bearing is suitably mounted on the inner ring of the matching bearing case. In order to prevent dust, the bearing is usually equipped with a rubber ring on both sides. The 4-bolt bearing case is with square appearance and the unit can bear higher loads than that of 2-bolt flange mounted bearing unit. Compared with ISUTAMI 2-bolt flange mounted bearing unit and 3-bolt flange mounted bearing unit, the 4-bolt type is better suited for long shaft mounting. The dimensions of the inner ring and housing in the bearing unit are divided into inch and metric.

SAF series bearing unit is a product with metric bolt holes. And it is light duty, with a narrow inner ring, and the protruding part of it is with an eccentric collar lock, to fix the shaft. The bore diameter ranges from 1/2 inch up to 3 inches. SAF 4-bolt housing unit with bearing is usually fixed directly to the equipment through four bolt holes on the flange for easy installation. If the product needs to be replaced, it can be removed by loosing fixing screw.

The bearings on SAF 4-bolt flange bearing unit can be maintained by re-lubricating. The performance of a bearing is greatly influenced by the quality and quantity of the grease. In order to avoid over filling, it is advisable to replenish the grease in small amounts. Over lubrication is a major cause of bearing failure. Over filling can increase heat build-up in the bearing during operation which can lead to premature failure, and can also dislodge seals and flingers from their mounting position thereby interfering with the rotation of the bearing or destroying the integrity of the seal.
SAF Series 4 Bolt Flange Mounted Bearing Units
ISUTAMI SAF 4-bolt mounted bearing unit, also known as SAF 4-bolt square flanged housing with bearing. The product is usually applied when the bearing mounting surface is perpendicular to the shaft. The flanged housing is a one-piece and the mainly made of cast iron. The cast iron is always painted, galvanized or nickel plated for corrosion protection. The housing has four bolt holes distributed near four corners to install the entire product. The inner ring of the bearing housing is spherical and combined with the insert spherical ball bearing of the corresponding size to form a complete bearing unit. This spherical bearing is suitably mounted on the inner ring of the matching bearing case. In order to prevent dust, the bearing is usually equipped with a rubber ring on both sides. The 4-bolt bearing case is with square appearance and the unit can bear higher loads than that of 2-bolt flange mounted bearing unit. Compared with ISUTAMI 2-bolt flange mounted bearing unit and 3-bolt flange mounted bearing unit, the 4-bolt type is better suited for long shaft mounting. The dimensions of the inner ring and housing in the bearing unit are divided into inch and metric.

SAF series bearing unit is a product with metric bolt holes. And it is light duty, with a narrow inner ring, and the protruding part of it is with an eccentric collar lock, to fix the shaft. The bore diameter ranges from 1/2 inch up to 3 inches. SAF 4-bolt housing unit with bearing is usually fixed directly to the equipment through four bolt holes on the flange for easy installation. If the product needs to be replaced, it can be removed by loosing fixing screw.

The bearings on SAF 4-bolt flange bearing unit can be maintained by re-lubricating. The performance of a bearing is greatly influenced by the quality and quantity of the grease. In order to avoid over filling, it is advisable to replenish the grease in small amounts. Over lubrication is a major cause of bearing failure. Over filling can increase heat build-up in the bearing during operation which can lead to premature failure, and can also dislodge seals and flingers from their mounting position thereby interfering with the rotation of the bearing or destroying the integrity of the seal.

SAF Series 4 Bolt Flange Mounted Bearing Units Size Chart

4 Bolt Flange Mounted Bearing Units SAF

Bearing No.
Insert
Bearing No.
Housing No. Shaft Dia Boundary Dimensions(mm) Bolt Size
Mass
(Kg)
in. mm a e i g l s z Bi n
SAF201-8 SA201-8 F203 1/2 - 76 54 9.5 11 18 10 32.1 28.6 6 3/8 0.52
SAF202-10 SA202-10 F203 5/8 - 76 54 9.5 11 18 10 32.1 28.6 6 3/8 0.52
SAF204 SA204 F204 - 20 86 63.5 15 11 25.4 12 38.5 31 7 M10 0.65
SAF204-12 SA204-12 F204 3/4 - 86 63.5 15 11 25.4 12 38.5 31 7 3/8 0.65
SAF205 SA205 F205 - 25 95 70 16 13 27 12 39.3 31 7.5 M10 0.9
SAF205-14 SA205-14 F205 7/8 - 95 70 16 13 27 12 39.3 31 7.5 3/8 0.9
SAF205-15 SA205-15 F205 15/16 - 95 70 16 13 27 12 39.3 31 7.5 3/8 0.9
SAF205-16 SA205-16 F205 1 - 95 70 16 13 27 12 39.3 31 7.5 3/8 0.9
SAF206 SA206 F206 - 30 108 83 18 13 31 12 44.8 35.7 8 M10 1.25
SAF206-17 SA206-17 F206 1-1/16 - 108 83 18 13 31 12 44.8 35.7 8 3/8 1.25
SAF206-18 SA206-18 F206 1-1/8 - 108 83 18 13 31 12 44.8 35.7 8 3/8 1.25
SAF206-19 SA206-19 F206 1-3/16 - 108 83 18 13 31 12 44.8 35.7 8 3/8 1.25
SAF206-20 SA206-20 F206 1-1/4 - 108 83 18 13 31 12 44.8 35.7 8 3/8 1.25
SAF207 SA207 F207 - 35 117 92 19 15 34 14 48.4 38.9 8.5 M12 1.7
SAF207-20 SA207-20 F207 1-1/4 - 117 92 19 15 34 14 48.4 38.9 8.5 7/16 1.7
SAF207-21 SA207-21 F207 1-5/16 - 117 92 19 15 34 14 48.4 38.9 8.5 7/16 1.7
SAF207-22 SA207-22 F207 1-3/8 - 117 92 19 15 34 14 48.4 38.9 8.5 7/16 1.7
SAF207-23 SA207-23 F207 1-7/16 - 117 92 19 15 34 14 48.4 38.9 8.5 7/16 1.7
SAF208 SA208 F208 - 40 130 102 21 15 36 16 53.6 43.7 9 M14 2.2
SAF208-24 SA208-24 F208 1-1/2 - 130 102 21 15 36 16 53.6 43.7 9 1/2 2.2
SAF208-25 SA208-25 F208 1-9/16 - 130 102 21 15 36 16 53.6 43.7 9 1/2 2.2
SAF209 SA209 F209 - 45 137.3 105 22 16 38 16 54.8 43.7 9.5 M14 2.5
SAF209-26 SA209-26 F209 1-5/8 - 137.3 105 22 16 38 16 54.8 43.7 9.5 1/2 2.5
SAF209-27 SA209-27 F209 1-11/16 - 137.3 105 22 16 38 16 54.8 43.7 9.5 1/2 2.5
SAF209-28 SA209-28 F209 1-3/4 - 137.3 105 22 16 38 16 54.8 43.7 9.5 1/2 2.5
SAF210 SA210 F210 - 50 142.9 111 22 16 40 16 54.8 43.7 10 M14 2.8
SAF210-30 SA210-30 F210 1-7/8 - 142.9 111 22 16 40 16 54.8 43.7 10 1/2 2.8
SAF210-31 SA210-31 F210 1-15/16 - 142.9 111 22 16 40 16 54.8 43.7 10 1/2 2.8
SAF210-32 SA210-32 F210 2 - 142.9 111 22 16 40 16 54.8 43.7 10 1/2 2.8
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