Model Number: A4050/A4138 Brand Name: UMZ Key Specifications/Special Features: A4050/A4138-inch taper roller bearing 12.7x34.988x10.988mmWe are the factory, so the price is quite competitive, but quality is highThe models that we produce:1)Single row tapered roller bearing models:32200 series 32204---32236 (32204, 32205, 32206, 32210):30300 series 30303---30318 (30304, 30305, 30306, 30307, 30308, 30309, 30310, 30311, 30313, 30314, 30315, 30316, 30317, 30318, 30319, 30320)32000 series 32004--- 32024 (32004, 32005, 32010, 32015)32300 series 32304---32325 (32305, 32306, 32307, 32320)
33200 series 33205---33221 (33206, 33208, 33210, 33220)
33100 series 33108---33115 (33109, 33110, 33114, 33115)
30200 series 30203---30228 (30204, 30205, 30215, 30217, 30218, 30219, 30220, 30221, 30222, 30224)

2)Inch taper roller bearings: LM11590/20 LM11749/10, LM11949/10, M12649/10, LM12749/10, LM12749/11, L44643/10, M84548/10, 15103/245, 15103S/243, L44649/10, L45449/10, 329013, M86649/10, LM67048/10, LM67049A/10, 15123/245, 2580/20, M88048/10, LM48548/10, 25877/20, 25877/21, 2793/20, 31594/20, 3872/20, L68149/10, L68149/11, HM89449/10, JL69349/10, 2776/20, 2788/20, 418/414, 2789/20, HM801349/10, LM300849/11, HM803146/10, HM803146/11, 18590/20, LM501349/10, LM501349/14, 11162/300, 25578/20, HM801349/10, HM801349/11, 25580/20, 25582/20, HM803149/10, 3782/20, 3776/20, LM102949/10, LM603049/11, 25590/20, 25590/22, 25590/23, LM503349A/10, 18690/20, 359A/354A, 3778/20, JLM104948/10, LM104949/11, 18790/20, 18790/243780/20, LM806649/10, 387/382A, 387A/382A, 387AS/382A, 387S/382A, 462/453X, 29580/20 and more.

1. The precision: P0—ABEC1 P6—ABEC3

2. The material: chrome steel (Gcr15) carbon steel

3. Vibration level: Z1 Z2 Z3

4. The noise level: V1 V2 V3