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BTM Series

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Double Direction Axial Angular Contact Ball Bearings BTM Series

 

Features

Bearings of BTM Series consist of two non-separable single row angular contact ball bearings arranged back to back, to carry thrust loads in both directions. When mounted, the bearings become preloaded.

These high speed design bearings are available with fitted with 30° contact angle or 40° contact angle.

They have the same bore and outside diameter as bearings in the 2344(00) series, but a 25% lower bearing height, which makes them particularly suitable for very compact arrangements. They do not have the same high load carrying capacity and axial stiffness as bearings in the 2344(00)series,but can operate at higher speeds.

BTM series bearings are capable of high speed operations and lower heat generation whiles maintaining high rigidity. BTM series bearings with special width dimension bearing spacer can successfully replace the 2344 series bearings in case of unchanged with shaft and bearing housing.

Code d D B rsmin Basic Load Rating Speed Limit Weight
Ca Coa Oil Grease
—— mm KN KN r/min r/min Kg
BTM 50A/DB 50 80 28.5 1 14.70 27.70 14700 11600 0.27
BTM 50B/DB 50 80 28.5 1 17.40 31.50 13100 10000 0.27
BTM 55A/DB 55 90 33 1.1 18.20 35.00 13200 10400 0.40
BTM 55B/DB 55 90 33 1.1 21.60 40.00 11800 9000 0.40
BTM 60A/DB 60 95 33 1.1 18.90 38.00 12300 9700 0.42
BTM 60B/DB 60 95 33 1.1 22.40 43.50 11000 8400 0.42
BTM 65A/DB 65 100 33 1.1 19.50 41.50 11600 9100 0.44
BTM 65B/DB 65 100 33 1.1 23.10 47.00 10400 7900 0.44
BTM 70A/DB 70 110 36 1.1 26.90 55.00 10600 8400 0.60
BTM 70B/DB 70 110 36 1.1 32.00 63.00 9500 7300 0.60
BTM 75A/DB 75 115 36 1.1 27.30 58.00 10000 7900 0.63
BTM 75B/DB 75 115 36 1.1 32.50 65.50 9000 6900 0.63
BTM 80A/DB 80 125 40.5 1.1 32.00 68.50 9300 7400 0.85
BTM 80B/DB 80 125 40.5 1.1 38.00 78.00 8300 6400 0.85
BTM 85A/DB 85 130 40.5 1.1 32.50 71.50 8900 7000 0.95
BTM 85B/DB 85 130 40.5 1.1 38.50 81.50 8000 6100 0.95

 

 

 

 

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