Enduro Bearings Deep Groove Angular Contact Ball Bearing MR/MRA 2437 24mm x 37mm x 7mm
Item number: 57575
Carefully manufactured, highly precise: the MR 2437 Bearing by Enduro Bearings
There is a choice of ABEC 3 deep groove ball bearings (type 1), ABEC 5 deep groove ball bearings (type 2) and angular contact ball bearings (type 3).
ABEC 3 bearings from Enduro Bearings feature 10th-degree chrome steel balls that are twice as round as the industry standard, and manufactured to the highest standard. The treads are made of a 52100 carbon chrome steel alloy that is vacuum-generated and then hardened for extra strength and durability. A high-gloss polish ensures precision and low noise.
ABEC 5 bearings from Enduro Bearings feature R64 hardened 5th degree chrome steel balls, making them suitable for high precision applications. They move in vacuum-formed treads made of 52100 carbon chrome steel, which are particularly resistant and durable. The nylon graphite ball bearing cages have virtually no friction, and ensure constant double-sided supply of Rheolube 374A grease.
In standard radial bearings, only 3 or 4 balls make contact during the load at any given time. Inside of Enduro Bearings' Angular Contact (A/C) bearings, ALL balls are engaged so that they can distribute force over a larger surface area. This reduces friction and minimizes wear.
Specifications:
- Dimensions (Inner x Outer x Width):
- 24 mm x 37 mm x 7 mm
- Designation:
- MR(A) 2437
Models:
Type 1:- Design:
- deep groove ball bearings
- Tolerance:
- ABEC 3
- Recommended Use:
- hubs, bottom brackets, headsets
- Inner Race Material:
- steel (52100)
- Outer Race Material:
- steel (52100)
- Ball Material:
- steel
- Seals:
- LLB
- Basic static load rating:
- 3.2 kN (726 lbs)
- Manufacturer Number:
- MR2437LLB
Type 2:
- Design:
- deep groove ball bearings
- Tolerance:
- ABEC 5
- Recommended Use:
- hubs
- Inner Race Material:
- steel (52100)
- Outer Race Material:
- steel (52100)
- Ball Material:
- steel
- Seals:
- SRS
- Basic static load rating:
- 3.2 kN (726 lbs)
- Manufacturer Number:
- MR2437SRSA5
Type 3:
- Design:
- Angular contact ball bearing
- Tolerance:
- ABEC 5
- Recommended Use:
- hubs
- Inner Race Material:
- steel (52100)
- Outer Race Material:
- steel (52100)
- Ball Material:
- steel
- Seals:
- LLB
- Basic static load rating:
- 3.2 kN (726 lbs)
- Manufacturer Number:
- MRA2437LLB
Features:
Type 1:- ABEC 3 bearings with riveted steel ball cage for more durability
- chrome steel balls 10th degree = circularity is 10/1,000,000"
- race grooves made of carbon-chrome steel alloy, heat and cold treated (down to -190° C), minimum hardness Rockwell HRC 62, polished
- LLB: widely used seal type made of nitrile rubber with steel insert, in a groove in the inner race (labyrinth bearing), two super thin sealing lips; the outer one keeps out water and contaminants, the inner one retains grease
- Level 3 in the rating of the Annular Bearing Engineer's Committee (ABEC) in terms of manufacturing tolerances and noise development
Type 2:
- Level 5 in the rating of the Annular Bearing Engineer's Committee (ABEC) in terms of manufacturing tolerances and noise development
- chrome steel balls 5th degree = roundness is 5/1,000,000"
- treads made of carbon chrome steel alloy, heat- and cold-treated (down to -190° C), hardness min. Rockwell HRC 62, high gloss polish for precision and quietness
- nylon graphite ball cage, grease supply on both sides
- SRS: Snap Ring Seal type that can be safely removed for quick and easy maintenance, simple sealing lip on a step milled into the inner tread, extremely low running resistance, effective barrier against dirt and water
- bearing clearance: C3
Type 3:
- Angular contact ball bearing with 15° angle
- Level 5 in the rating of the Annular Bearing Engineer's Committee (ABEC) in terms of manufacturing tolerances and noise development
- chrome steel balls 5th degree = roundness is 5/1,000,000"
- race grooves made of carbon chrome steel alloy, heat and triple cold treated (up to -190° C), hardness degree min. Rockwell HRC 62, high gloss polish for precision and quietness
- LLB: widely used seal type made of nitrile rubber with steel insert, in a groove in the inner race (labyrinth bearing), two super thin sealing lips; the outer one keeps out water and contaminants, the inner one retains grease
- 90% filled with waterproof high-pressure grease
- side with red seal is load side, 5-10 lbs pretension required
Contents:
- 1 x Enduro Bearings ball bearing MR 2437 or MRA 2437 24 mm x 37 mm x 7 mm
Weight:
- universal/type 1: 31 g
- universal/type 3: 31 g
- 100 day return period
- Online since 1998
